Small in size but big on features!

200A (2C) CONTINUOUS DISCHARGE

6000+ CHARGE CYCLES @ 80% DOD

THIN 50mm PROFILE

CONNECT 4 IN PARALLEL OR IN SERIES

BLUETOOTH MONITORING VIA PHONE APP

2 X ANDERSON PLUG INPUTS/OUTPUTS

Ask any full-time tourer to tell you about some of the biggest challenges while travelling the country and you’ll likely find their answer has something to do with 12V power and space. Our 105Ah Slimline Lithium Batteries look to solve both these problems.

Built into a narrow 50mm heavy-duty aluminium case, the batteries are ideally suited to being mounted behind the rear seats in a 4×4 cab, or up on the wall of a canopy, allowing you plenty of extra space to pack the rest of your gear. The batteries can be mounted in any orientation and come with eight brackets, giving you plenty of flexibility in how you decide to mount the unit.

Engineered using high-quality aluminium-encased prismatic cells, our 105Ah battery weighs just 14kg and has excellent vibration resistance qualities making it ideal for those looking to set out on a cross-country trip. The battery has a full 105Ah of usable power – ideal for running 12V fridges, lighting, and pumps – but also has the capacity to run even larger items.

Equipped with an advanced internal Battery Management System (BMS), the battery is capable of discharging at 200A continuous which means that it’s able to run a 2000W inverter. This enables the battery to run, through an inverter, your favourite 240V appliances like coffee machines, toasters, and induction cooktops, without skipping a beat – a feat that hasn’t previously been possible with batteries at this size. Additionally, the BMS allows the batteries to be able to be either linked in parallel or series with up to four other batteries to create larger battery banks of up to 420Ah or systems at up to 48V.

The batteries are certified in accordance with some of the country’s most stringent safety and performance standards, have been fully tested and certified by an internationally renowned lab, and are backed by a comprehensive 5-year warranty.

Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:

• UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
• IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
• IEC 62619:2022: Safety testing of lithium batteries for industrial use

• ISO 9001: Ensures quality management systems have been implemented
• ISO 14001: Ensures environmental management systems have been implemented

Bluetooth® monitoring app

More usable power, longer life

When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).

Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 100Ah battery might only be able to deliver 80Ah or even less.

We value our good reputation, and will always quote the C20 rating (or even higher) as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.

Why upgrade to lithium?

• Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
• More usable capacity: safely use up to 80% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
• Fast charging: charges up to four times faster than an equivalent AGM battery
• Light weight: About half the weight of an equivalent SLA battery
• Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction

Handy remote reset switch

Want to know more?

We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:

A Comprehensive Guide to Deep Cycle Batteries

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5-year Australian warranty and a 30-day money back guarantee.

Small in size but big on features!

250A (1C) CONTINUOUS DISCHARGE

6000+ CHARGE CYCLES @ 80% DOD

THIN 50mm PROFILE

CONNECT 4 IN PARALLEL OR IN SERIES

BLUETOOTH MONITORING VIA PHONE APP

Ask any full-time tourer to tell you about some of the biggest challenges while travelling the country and you’ll likely find their answer has something to do with 12V power and space. Our 210Ah Slimline Lithium Batteries look to solve both these problems.

Built into a narrow 50mm heavy-duty aluminium case, the batteries are ideally suited to being mounted behind the rear seats in a 4×4 cab, or up on the wall of a canopy, allowing you plenty of extra space to pack the rest of your gear. The batteries can be mounted in any orientation and come with eight brackets, giving you plenty of flexibility in how you decide to mount the unit.

Engineered using high-quality aluminium-encased prismatic cells, our 210Ah battery weighs just 25kg and has excellent vibration resistance qualities making it ideal for those looking to set out on a cross-country trip. The battery has a full 210Ah of usable power – ideal for running 12V fridges, lighting, and pumps – but also has the capacity to run even larger items.

Equipped with an advanced internal Battery Management System (BMS), the battery is capable of discharging at 250A continuous which means that it’s able to run up to 2500W from an inverter. This enables the battery to run, through an inverter, your favourite 240V appliances like coffee machines, toasters, and induction cooktops, without skipping a beat – a feat that hasn’t previously been possible with batteries at this size. Additionally, the BMS allows the batteries to be able to be either linked in parallel or series with up to four other batteries to create larger battery banks of up to 840Ah or systems at up to 48V.

The batteries are certified in accordance with some of the country’s most stringent safety and performance standards, have been fully tested and certified by an internationally renowned lab, and are backed by a comprehensive 5-year warranty.

Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:

• UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
• IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
• IEC 62619:2022: Safety testing of lithium batteries for industrial use

• ISO 9001: Ensures quality management systems have been implemented
• ISO 14001: Ensures environmental management systems have been implemented

Bluetooth® monitoring app

More usable power, longer life

When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).

Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 100Ah battery might only be able to deliver 80Ah or even less.

We value our good reputation, and will always quote the C20 rating (or even higher) as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.

Why upgrade to lithium?

• Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
• More usable capacity: safely use up to 80% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
• Fast charging: charges up to four times faster than an equivalent AGM battery
• Light weight: About half the weight of an equivalent SLA battery
• Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction

Handy remote reset switch

Want to know more?

We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:

A Comprehensive Guide to Deep Cycle Batteries

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5-year Australian warranty and a 30-day money back guarantee.

Designed as a quick and easy way to keep your batteries in place, our trays are designed to be bolted in place on your 4×4, trailer, or boat setup, with the battery then to be placed on top and strapped or fastened in place using the included hold-down kit.

The trays are constructed from high-strength 1.5mm powder-coated stainless steel which is paired with a vibration-dampening EVA foam layer made to keep your battery safe from extreme conditions out on the road or water.

Each short end of the tray is equipped with slots designed to make cable management easy. Simply run your leads down the ends of the battery and cable tie them in place using the slots for a well-organised wiring setup.

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5 year Australian warranty and a 30-day money back guarantee.

Now with 5 year Australian warranty!

200A (1C) CONTINUOUS DISCHARGE

6000+ CHARGE CYCLES @ 80% DOD

CONNECT 6 IN PARALLEL, 4 IN SERIES

IP64 WATERPROOF & DUSTPROOF

AUTO-RESETTING SLEEP MODE

Our latest 200Ah lithium (LiFePO₄) deep-cycle batteries are the most reliable, long-lasting batteries we have ever manufactured. With outstanding performance characteristics and full international certification, you’ll never be caught short of 12v power on your 4wding and camping adventures again!

These batteries are made using best-in-class robotic manufacturing processes with rigorous quality assurance (including serialised tracking) and pre-shipment cycle testing. We even store the test report for each battery for later reference if needed. That’s why we can now confidently offer you a 5-year Australian warranty.

Top-quality cells

Our 200Ah deep-cycle lithium batteries are constructed from the highest quality 26700 high-discharge cylindrical cells. The cells are carefully matched to ensure the difference in internal resistance is less than 1mΩ and voltage difference is less than 5mV. They are then ultrasonically welded using automated equipment to ensure a strong connection is made between each cell, and encased in custom-molded ABS plastic cell holders to ensure reliability and consistency even when subjected to shock and vibration.

Wait… aren’t prismatic cells better?

Prismatic and cylindrical cells both have inherent advantages and disadvantages. Batteries which use prismatic cells are somewhat lighter than those with cylindrical cells, and are easier to manufacture due to having fewer connections between cells. Cylindrical cells, on the other hand, are usually more efficient in their energy usage, produce somewhat less heat and tend to be more reliable than their prismatic counterparts.

The improved cell reliability and efficiency of cylindrical cells are what made us decide, like Tesla and Rivian, to manufacture these batteries from cylindrical cells.

Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:

• UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
• IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
• IEC 62619:2022: Safety testing of lithium batteries for industrial use
• CE: The batteries meet EU safety, health and environmental protection requirements

• ISO 9001: Ensures quality management systems have been implemented
• ISO 14001: Ensures environmental management systems have been implemented

More usable power, longer life

When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).

Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 100Ah battery might only be able to deliver 80Ah or even less.

We value our good reputation, and will always quote the C20 rating (or even higher) as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.

Why upgrade to lithium?

• Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
• More usable capacity: safely use up to 80% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
• Fast charging: charges up to four times faster than an equivalent AGM battery
• Light weight: About half the weight of an equivalent SLA battery
• Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction

Handy remote reset switch

Want to know more?

We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:

A Comprehensive Guide to Deep Cycle Batteries

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5-year Australian warranty and a 30-day money back guarantee.

Now with 5 year Australian warranty!

100A (1C) CONTINUOUS DISCHARGE

6000+ CHARGE CYCLES @ 80% DOD

CONNECT 6 IN PARALLEL, 4 IN SERIES

IP64 WATERPROOF & DUSTPROOF

Our latest 100Ah lithium (LiFePO₄) deep-cycle batteries are the most reliable, long-lasting batteries we have ever manufactured. With outstanding performance characteristics and full international certification, you’ll never be caught short of 12v power on your 4wding and camping adventures again! Coming in a standard Group 27 (N70) size case, they are will fit into standard-sized battery boxes and trays.

These batteries are made using best-in-class robotic manufacturing processes with rigorous quality assurance (including serialised tracking) and pre-shipment cycle testing. We even store the test report for each battery for later reference if needed. That’s why we can now confidently offer you a 5-year Australian warranty.

Top-quality cells

Our 100Ah deep-cycle lithium batteries are constructed from the highest quality 26700 high-discharge cylindrical cells. The cells are carefully matched to ensure the difference in internal resistance is less than 1mΩ and voltage difference is less than 5mV. They are then ultrasonically welded using automated equipment to ensure a strong connection is made between each cell, and encased in custom-molded ABS plastic cell holders to ensure reliability and consistency even when subjected to shock and vibration.

Wait… aren’t prismatic cells better?

Prismatic and cylindrical cells both have inherent advantages and disadvantages. Batteries which use prismatic cells are somewhat lighter than those with cylindrical cells, and are easier to manufacture due to having fewer connections between cells. Cylindrical cells, on the other hand, are usually more efficient in their energy usage, produce somewhat less heat and tend to be more reliable than their prismatic counterparts.

The improved cell reliability and efficiency of cylindrical cells are what made us decide, like Tesla and Rivian, to manufacture these batteries from cylindrical cells.

Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:

• UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
• IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
• IEC 62619:2022: Safety testing of lithium batteries for industrial use
• CE: The batteries meet EU safety, health and environmental protection requirements

• ISO 9001: Ensures quality management systems have been implemented
• ISO 14001: Ensures environmental management systems have been implemented

More usable power, longer life

When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).

Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 100Ah battery might only be able to deliver 80Ah or even less.

We value our good reputation, and will always quote the C20 rating (or even higher) as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.

Why upgrade to lithium?

• Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
• More usable capacity: safely use up to 80% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
• Fast charging: charges up to four times faster than an equivalent AGM battery
• Light weight: About half the weight of an equivalent SLA battery
• Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction

Handy remote reset switch

Want to know more?

We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:

A Comprehensive Guide to Deep Cycle Batteries

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5-year Australian warranty and a 30-day money back guarantee.

The most convenient way to monitor your deep-cycle batteries.

BLUETOOTH MONITORING VIA PHONE APP

FULL-COLOUR LCD DISPLAY

PRECISION 100V/500A SHUNT

SUITS 10-120V BATTERY BANKS

DIY INSTALL

This battery monitor, also known as a coulometer, displays essential battery information through its full-colour LCD screen or by connecting your smartphone via Bluetooth. By using a 500A shunt, highly accurate data is collected such as charge level (Ah and %), live current draw (A), live voltage (V) and live watts (W). The monitor also includes an integrated alarm function to alert you when your battery is discharged to a set level, and short circuit and reverse polarity protection technology.

It is suitable for all common battery types including Lithium, AGM, Wet, Gel and Calcium.

Bluetooth® monitoring app

Using our free Bluetooth app, you can easily access all of the information from the battery monitor screen via your smartphone. You can also change settings from the app and wirelessly synchronise them with the monitor.

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 2-year Australian warranty and a 30-day money back guarantee.

Latest technology, highest quality.

200A CONTINUOUS DISCHARGE

6000+ CYCLES @ 80% DOD

CONNECT 6 IN SERIES OR PARALLEL

WORKS IN SUB-ZERO TEMPERATURES

IP64 WATERPROOF & DUSTPROOF

BLUETOOTH MONITORING VIA PHONE APP

Our latest range of 240Ah lithium (LiFePO₄) deep-cycle batteries are the most reliable, technologically-advanced batteries we have ever manufactured. With Bluetooth® monitoring, outstanding performance characteristics and full international certification, you’ll never be caught short of 12v power on your 4wding and camping adventures again!

This model includes our latest innovation: the cells are wrapped in heating film, which is automatically switched on by the BMS when it detects the ambient temperature has dropped under 0°C. This means that, unlike other batteries on the market, you can continue to charge your battery even in freezing weather!

These batteries are made using best-in-class robotic manufacturing processes with rigorous quality assurance (including serialised tracking) and pre-shipment cycle testing. We even store the test report for each battery for later reference if needed. That’s why we can now confidently offer you a 5-year Australian warranty.

Top-quality cells

Our 240Ah deep-cycle lithium batteries are constructed from the highest quality 26700 high-discharge cylindrical cells. The cells are carefully matched to ensure the difference in internal resistance is less than 1mΩ and voltage difference is less than 5mV. They are then ultrasonically welded using automated equipment to ensure a strong connection is made between each cell, and encased in custom-molded ABS plastic cell holders to ensure reliability and consistency even when subjected to shock and vibration.

Wait… aren’t prismatic cells better?

Prismatic and cylindrical cells both have inherent advantages and disadvantages. Batteries which use prismatic cells are somewhat lighter than those with cylindrical cells, and are easier to manufacture due to having fewer connections between cells. Cylindrical cells, on the other hand, are usually more efficient in their energy usage, produce somewhat less heat and tend to be more reliable than their prismatic counterparts.

The improved cell reliability and efficiency of cylindrical cells are what made us decide, like Tesla and Rivian, to manufacture these batteries from cylindrical cells.

Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:

• UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
• IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
• IEC 62619:2022: Safety testing of lithium batteries for industrial use
• CE: The batteries meet EU safety, health and environmental protection requirements

• ISO 9001: Ensures quality management systems have been implemented
• ISO 14001: Ensures environmental management systems have been implemented

More usable power, longer life

When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).

Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 120Ah battery might only be able to deliver 105Ah or even less.

We value our good reputation, and will always quote the C20 rating as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.

Bluetooth® monitoring app

Why upgrade to lithium?

• Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
• More usable capacity: safely use up to 70% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
• Light weight: About half the weight of an equivalent SLA battery
• Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction

Handy remote reset switch

Want to know more?

We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:

A Comprehensive Guide to Deep Cycle Batteries

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5-year Australian warranty and a 30-day money back guarantee.

Latest technology, highest quality.

200A CONTINUOUS DISCHARGE

6000+ CYCLES @ 80% DOD

CONNECT 6 IN SERIES OR PARALLEL

IP64 WATERPROOF & DUSTPROOF

BLUETOOTH MONITORING VIA PHONE APP

Our latest range of 240Ah lithium (LiFePO₄) deep-cycle batteries are the most reliable, technologically-advanced batteries we have ever manufactured. With Bluetooth® monitoring, outstanding performance characteristics and full international certification, you’ll never be caught short of 12v power on your 4wding and camping adventures again!

These batteries are made using best-in-class robotic manufacturing processes with rigorous quality assurance (including serialised tracking) and pre-shipment cycle testing. We even store the test report for each battery for later reference if needed. That’s why we can now confidently offer you a 5-year Australian warranty.

Top-quality cells

Our 240Ah deep-cycle lithium batteries are constructed from the highest quality 26700 high-discharge cylindrical cells. The cells are carefully matched to ensure the difference in internal resistance is less than 1mΩ and voltage difference is less than 5mV. They are then ultrasonically welded using automated equipment to ensure a strong connection is made between each cell, and encased in custom-molded ABS plastic cell holders to ensure reliability and consistency even when subjected to shock and vibration.

Wait… aren’t prismatic cells better?

Prismatic and cylindrical cells both have inherent advantages and disadvantages. Batteries which use prismatic cells are somewhat lighter than those with cylindrical cells, and are easier to manufacture due to having fewer connections between cells. Cylindrical cells, on the other hand, are usually more efficient in their energy usage, produce somewhat less heat and tend to be more reliable than their prismatic counterparts.

The improved cell reliability and efficiency of cylindrical cells are what made us decide, like Tesla and Rivian, to manufacture these batteries from cylindrical cells.

Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:

• UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
• IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
• IEC 62619:2022: Safety testing of lithium batteries for industrial use
• CE: The batteries meet EU safety, health and environmental protection requirements

• ISO 9001: Ensures quality management systems have been implemented
• ISO 14001: Ensures environmental management systems have been implemented

More usable power, longer life

When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).

Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 120Ah battery might only be able to deliver 105Ah or even less.

We value our good reputation, and will always quote the C20 rating as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.

Bluetooth® monitoring app

Why upgrade to lithium?

• Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
• More usable capacity: safely use up to 70% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
• Light weight: About half the weight of an equivalent SLA battery
• Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction

Handy remote reset switch

Want to know more?

We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:

A Comprehensive Guide to Deep Cycle Batteries

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5-year Australian warranty and a 30-day money back guarantee.

Consistent power even in sub-zero temperatures.

135A (1C) CONTINUOUS DISCHARGE

6000+ CYCLES @ 80% DOD

CONNECT 6 IN SERIES OR PARALLEL

WORKS IN SUB-ZERO TEMPERATURES

IP64 WATERPROOF & DUSTPROOF

BLUETOOTH MONITORING VIA PHONE APP

Our latest range of 135Ah lithium (LiFePO₄) deep-cycle batteries are the most reliable, technologically-advanced batteries we have ever manufactured. With Bluetooth® monitoring, outstanding performance characteristics and full international certification, you’ll never be caught short of 12v power on your 4wding and camping adventures again! Best of all, we’ve packed 135Ah of usable power into a standard Group 27 (N70) size case, meaning they are compatible with standard-sized battery boxes and trays.

This model includes our latest innovation: the cells are wrapped in heating film, which is automatically switched on by the BMS when it detects the ambient temperature has dropped under 0°C. This means that, unlike other batteries on the market, you can continue to charge your battery even in freezing weather!

These batteries are made using best-in-class robotic manufacturing processes with rigorous quality assurance (including serialised tracking) and pre-shipment cycle testing. We even store the test report for each battery for later reference if needed. That’s why we can now confidently offer you a 5-year Australian warranty.

What makes these “cold climate” batteries?

Top-quality cells

Our 135AH deep-cycle lithium batteries are constructed from the highest quality 26700 high-discharge cylindrical cells. The cells are carefully matched to ensure the difference in internal resistance is less than 1mΩ and voltage difference is less than 5mV. They are then ultrasonically welded using automated equipment to ensure a strong connection is made between each cell, and encased in custom-molded ABS plastic cell holders to ensure reliability and consistency even when subjected to shock and vibration.

Wait… aren’t prismatic cells better?

Prismatic and cylindrical cells both have inherent advantages and disadvantages. Batteries which use prismatic cells are somewhat lighter than those with cylindrical cells, and are easier to manufacture due to having fewer connections between cells. Cylindrical cells, on the other hand, are usually more efficient in their energy usage, produce somewhat less heat and tend to be more reliable than their prismatic counterparts.

The improved cell reliability and efficiency of cylindrical cells are what made us decide, like Tesla and Rivian, to manufacture these batteries from cylindrical cells.

Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:

• UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
• IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
• IEC 62619:2022: Safety testing of lithium batteries for industrial use
• CE: The batteries meet EU safety, health and environmental protection requirements

• ISO 9001: Ensures quality management systems have been implemented
• ISO 14001: Ensures environmental management systems have been implemented

More usable power, longer life

When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).

Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 120Ah battery might only be able to deliver 105Ah or even less.

We value our good reputation, and will always quote the C20 rating as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.

Bluetooth® monitoring app

Why upgrade to lithium?

• Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
• More usable capacity: safely use up to 70% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
• Light weight: About half the weight of an equivalent SLA battery
• Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction

Handy remote reset switch

Want to know more?

We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:

A Comprehensive Guide to Deep Cycle Batteries

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5-year Australian warranty and a 30-day money back guarantee.

Latest technology, highest quality.

135A (1C) CONTINUOUS DISCHARGE

6000+ CYCLES @ 80% DOD

CONNECT 6 IN SERIES OR PARALLEL

IP64 WATERPROOF & DUSTPROOF

BLUETOOTH MONITORING VIA PHONE APP

Our latest range of 135Ah lithium (LiFePO₄) deep-cycle batteries are the most reliable, technologically-advanced batteries we have ever manufactured. With Bluetooth® monitoring, outstanding performance characteristics and full international certification, you’ll never be caught short of 12v power on your 4wding and camping adventures again! Best of all, we’ve packed 135Ah of usable power into a standard Group 27 (N70) size case, meaning they are compatible with standard-sized battery boxes and trays.

These batteries are made using best-in-class robotic manufacturing processes with rigorous quality assurance (including serialised tracking) and pre-shipment cycle testing. We even store the test report for each battery for later reference if needed. That’s why we can now confidently offer you a 5-year Australian warranty.

Top-quality cells

Our 135AH deep-cycle lithium batteries are constructed from the highest quality 26700 high-discharge cylindrical cells. The cells are carefully matched to ensure the difference in internal resistance is less than 1mΩ and voltage difference is less than 5mV. They are then ultrasonically welded using automated equipment to ensure a strong connection is made between each cell, and encased in custom-molded ABS plastic cell holders to ensure reliability and consistency even when subjected to shock and vibration.

Wait… aren’t prismatic cells better?

Prismatic and cylindrical cells both have inherent advantages and disadvantages. Batteries which use prismatic cells are somewhat lighter than those with cylindrical cells, and are easier to manufacture due to having fewer connections between cells. Cylindrical cells, on the other hand, are usually more efficient in their energy usage, produce somewhat less heat and tend to be more reliable than their prismatic counterparts.

The improved cell reliability and efficiency of cylindrical cells are what made us decide, like Tesla and Rivian, to manufacture these batteries from cylindrical cells.

Our lithium batteries have been certified as meeting all required and optional international standards for performance and safety, including:

• UN 38.3: Safety testing of lithium metal / lithium ion batteries in transport
• IEC 62133-2:2017: Safety testing of portable lithium batteries under intended use and reasonably foreseeable misuse (including vibration test)
• IEC 62619:2022: Safety testing of lithium batteries for industrial use
• CE: The batteries meet EU safety, health and environmental protection requirements

• ISO 9001: Ensures quality management systems have been implemented
• ISO 14001: Ensures environmental management systems have been implemented

More usable power, longer life

When comparing batteries it is vitally important to understand the difference between nominal and C20 capacity. To reduce confusion and help to standardise the measurement of battery capacity, most reputable battery manufacturers will quote the capacity of their battery in amp-hours at C20 (also written as C/20), which means the number of amps the battery can deliver if discharged at a constant rate over a period of 20 hours. Using this standard, a fully-charged battery with a capacity of 100Ah could deliver 5A of current per hour for a period of 20 hours before becoming fully discharged (5A x 20h).

Some disreputable manufacturers, however, will advertise the nominal capacity of their batteries and bury the C20 rating in the fine print. Nominal capacity has no practical application and can be up to 20% higher than the C20 rating, so a battery that is advertised as a 120Ah battery might only be able to deliver 105Ah or even less.

We value our good reputation, and will always quote the C20 rating as the battery’s capacity. This means you can be confident that the power we say our batteries can deliver is not inflated to mislead, create confusion or invite unfair comparisons.

Bluetooth® monitoring app

Why upgrade to lithium?

• Long cycle life: lasts up to 10x longer than Sealed Lead Acid (SLA) batteries
• More usable capacity: safely use up to 70% of usable capacity and 99% in an emergency (vs 50%/70% for SLA)
• Light weight: About half the weight of an equivalent SLA battery
• Environmentally friendly: Non-toxic, contains no acid, can be installed in any direction

Handy remote reset switch

Want to know more?

We’ve written a comprehensive guide to deep cycle batteries on our blog, which contains everything you need to know about this highly technical subject. Click here to check it out:

A Comprehensive Guide to Deep Cycle Batteries

The Hardkorr guarantee

All Hardkorr products are manufactured using the highest quality materials. We are confident that they are the most durable in the market and will give you many years of reliable service. We stand behind this product with a comprehensive 5-year Australian warranty and a 30-day money back guarantee.