Hardkorr 135Ah Lithium Battery
The Hardkorr 135Ah Lithium Battery is built to deliver steady 12V power for camping, touring, and off-grid setups. It stores a true 135Ah of usable energy using LiFePO₄ chemistry and fits a standard Group 27 N70 battery tray. This makes it an easy upgrade from lead acid without changing your battery box or mounts.
Power output stays consistent even under load. High-discharge cylindrical cells handle vibration and heat better than many prismatic designs. Bluetooth monitoring lets you check charge level, voltage, current draw, and battery health from your phone. You can see how your system is performing in real time while running fridges, lights, inverters, and accessories.
Each battery is built using robotic manufacturing with serialised tracking and pre-shipment cycle testing. Every unit is tested before it leaves the factory. Full international certification and a five year Australian warranty back it up. This battery is designed for long service life and dependable performance in real touring conditions.
Key Features
- 135Ah LiFePO₄ deep cycle lithium battery
- True C20 rated capacity
- Standard Group 27 N70 size case
- Bluetooth monitoring via Hardkorr app
- High discharge 26700 cylindrical cells
- Built in Battery Management System
- Remote reset switch included
- High vibration and shock resistance
- Low self discharge rate
- IP64 dust and splash resistance
Specifications
| Nominal voltage | 12.8V |
|---|---|
| Capacity (C20) | 135Ah |
| Max series/parallel config | 6S/6P |
| Normal charge voltage | 14.4V ± 0.2V |
| Standard / fast charge current | 27A / 67A |
| Max discharge current (constant) | 135A (1C)* |
| Max discharge current (pulse) | 600A* |
| Discharge cut-off voltage | 10.0V |
| Charge temp | 0°C to 55°C |
| Discharge temp | -20°C to 60°C |
| Storage temp | -5°C to 45°C |
| Ingress protection | IP64 |
| Self-discharge | <3% per month |
| Weight | 14.0kg |
| Dimensions | 305mm x 169mm x 210mm (Group 27) |
| Certifications | UN 38.3, UL 1642, IEC 62133-2:2017, IEC 62619:2017, CE |
* Note on discharge current: if you connect multiple batteries in parallel, the maximum discharge current is multiplied by the number of batteries in the array. For example, if you connect two of these batteries in parallel you can discharge at up to 270A.
| Feature | Hardkorr 135Ah Cold Climate | Hardkorr 135Ah Standard |
|---|---|---|
| SKU | HKPBATL135BH | HKPBATL135B |
| RRP | $1,299 | $1,199 |
| Nominal Voltage | 12.8V | 12.8V |
| Capacity (C20) | 135Ah | 135Ah |
| Bluetooth Monitoring | Yes | Yes |
| Cold Charging Feature | BMS-controlled heating film activates below 0°C | Not included |
| Remote Reset Switch | Included | Included |
| Standard / Fast Charge Current | 27A / 67A | 27A / 67A |
| Max Discharge Current (Constant) | 135A | 135A |
| Max Discharge Current (Pulse) | 600A | 600A |
| Discharge Cut-off Voltage | 10.0V | 10.0V |
| Charge Temp | 0°C to 55°C (heating film enables charging below 0°C ambient) | 0°C to 55°C |
| Discharge Temp | -20°C to 60°C | -20°C to 60°C |
| Weight | 14.0kg | 14.0kg |
| Dimensions (L x W x H) | 305 x 169 x 210 mm | 305 x 169 x 210 mm |
| Cell Type | 26700 cylindrical | 26700 cylindrical |
| Certifications | UN 38.3, UL 1642, IEC 62133-2:2017, IEC 62619:2017, CE | UN 38.3, UL 1642, IEC 62133-2:2017, IEC 62619:2017, CE |
| IP Rating | IP64 | IP64 |
| Warranty | 5 years | 5 years |
Frequently Asked Questions — Hardkorr 135 Ah Lithium Battery (Bluetooth)
What makes the Hardkorr 135 Ah Lithium Battery stand out?
This battery is built to make upgrading simple. It’s the same size as a standard Group 27 battery, so it will slot straight into many caravan, boat, and 4WD battery trays without extra work. Inside, it uses high-quality LiFePO₄ cells that are carefully matched so they work in perfect balance. That means better efficiency and a longer lifespan. Each cell is welded by machine for strong, consistent connections, and they’re held in place with sturdy ABS frames to handle bumps, vibrations, and rough tracks.
How Long the 135 Ah Lithium Battery Can Run Your Gear
| Appliance / Device | Current Draw @12 V (A) | Max Runtime (Full Charge) |
|---|---|---|
| 12 V compressor fridge | 5 A | Up to 27 hours |
| 12 V LED lights (string) | 2 A | Up to 67 hours |
| 12 V water pump (continuous) | 5 A | Up to 27 hours |
| 12 V TV | 4 A | Up to 33 hours |
| Laptop via inverter | 7.5 A | Up to 18 hours |
| CPAP machine (no humidifier) | 4.2 A | Up to 32 hours |
| Portable fan | 2.5 A | Up to 54 hours |
| 1000 W inverter load (kettle) | 83 A | Up to 1.6 hours |
| 1500 W inverter load (heater) | 125 A | Up to 1.1 hours |
| SKU | HKPBATL135B |
|---|---|
| Barcode # | 9350466002911 |
| Brand | Hard Korr |
| Shipping Weight | 14.0000kg |
Hardkorr 135Ah Lithium (LiFePO4) Deep Cycle Battery w/Bluetooth
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Hardkorr 135Ah Lithium Battery
The Hardkorr 135Ah Lithium Battery is built to deliver steady 12V power for camping, touring, and off-grid setups. It stores a true 135Ah of usable energy using LiFePO₄ chemistry and fits a standard Group 27 N70 battery tray. This makes it an easy upgrade from lead acid without changing your battery box or mounts.
Power output stays consistent even under load. High-discharge cylindrical cells handle vibration and heat better than many prismatic designs. Bluetooth monitoring lets you check charge level, voltage, current draw, and battery health from your phone. You can see how your system is performing in real time while running fridges, lights, inverters, and accessories.
Each battery is built using robotic manufacturing with serialised tracking and pre-shipment cycle testing. Every unit is tested before it leaves the factory. Full international certification and a five year Australian warranty back it up. This battery is designed for long service life and dependable performance in real touring conditions.
Key Features
- 135Ah LiFePO₄ deep cycle lithium battery
- True C20 rated capacity
- Standard Group 27 N70 size case
- Bluetooth monitoring via Hardkorr app
- High discharge 26700 cylindrical cells
- Built in Battery Management System
- Remote reset switch included
- High vibration and shock resistance
- Low self discharge rate
- IP64 dust and splash resistance
Specifications
| Nominal voltage | 12.8V |
|---|---|
| Capacity (C20) | 135Ah |
| Max series/parallel config | 6S/6P |
| Normal charge voltage | 14.4V ± 0.2V |
| Standard / fast charge current | 27A / 67A |
| Max discharge current (constant) | 135A (1C)* |
| Max discharge current (pulse) | 600A* |
| Discharge cut-off voltage | 10.0V |
| Charge temp | 0°C to 55°C |
| Discharge temp | -20°C to 60°C |
| Storage temp | -5°C to 45°C |
| Ingress protection | IP64 |
| Self-discharge | <3% per month |
| Weight | 14.0kg |
| Dimensions | 305mm x 169mm x 210mm (Group 27) |
| Certifications | UN 38.3, UL 1642, IEC 62133-2:2017, IEC 62619:2017, CE |
* Note on discharge current: if you connect multiple batteries in parallel, the maximum discharge current is multiplied by the number of batteries in the array. For example, if you connect two of these batteries in parallel you can discharge at up to 270A.
| Feature | Hardkorr 135Ah Cold Climate | Hardkorr 135Ah Standard |
|---|---|---|
| SKU | HKPBATL135BH | HKPBATL135B |
| RRP | $1,299 | $1,199 |
| Nominal Voltage | 12.8V | 12.8V |
| Capacity (C20) | 135Ah | 135Ah |
| Bluetooth Monitoring | Yes | Yes |
| Cold Charging Feature | BMS-controlled heating film activates below 0°C | Not included |
| Remote Reset Switch | Included | Included |
| Standard / Fast Charge Current | 27A / 67A | 27A / 67A |
| Max Discharge Current (Constant) | 135A | 135A |
| Max Discharge Current (Pulse) | 600A | 600A |
| Discharge Cut-off Voltage | 10.0V | 10.0V |
| Charge Temp | 0°C to 55°C (heating film enables charging below 0°C ambient) | 0°C to 55°C |
| Discharge Temp | -20°C to 60°C | -20°C to 60°C |
| Weight | 14.0kg | 14.0kg |
| Dimensions (L x W x H) | 305 x 169 x 210 mm | 305 x 169 x 210 mm |
| Cell Type | 26700 cylindrical | 26700 cylindrical |
| Certifications | UN 38.3, UL 1642, IEC 62133-2:2017, IEC 62619:2017, CE | UN 38.3, UL 1642, IEC 62133-2:2017, IEC 62619:2017, CE |
| IP Rating | IP64 | IP64 |
| Warranty | 5 years | 5 years |
Frequently Asked Questions — Hardkorr 135 Ah Lithium Battery (Bluetooth)
What makes the Hardkorr 135 Ah Lithium Battery stand out?
This battery is built to make upgrading simple. It’s the same size as a standard Group 27 battery, so it will slot straight into many caravan, boat, and 4WD battery trays without extra work. Inside, it uses high-quality LiFePO₄ cells that are carefully matched so they work in perfect balance. That means better efficiency and a longer lifespan. Each cell is welded by machine for strong, consistent connections, and they’re held in place with sturdy ABS frames to handle bumps, vibrations, and rough tracks.
How Long the 135 Ah Lithium Battery Can Run Your Gear
| Appliance / Device | Current Draw @12 V (A) | Max Runtime (Full Charge) |
|---|---|---|
| 12 V compressor fridge | 5 A | Up to 27 hours |
| 12 V LED lights (string) | 2 A | Up to 67 hours |
| 12 V water pump (continuous) | 5 A | Up to 27 hours |
| 12 V TV | 4 A | Up to 33 hours |
| Laptop via inverter | 7.5 A | Up to 18 hours |
| CPAP machine (no humidifier) | 4.2 A | Up to 32 hours |
| Portable fan | 2.5 A | Up to 54 hours |
| 1000 W inverter load (kettle) | 83 A | Up to 1.6 hours |
| 1500 W inverter load (heater) | 125 A | Up to 1.1 hours |
| SKU | HKPBATL135B |
|---|---|
| Barcode # | 9350466002911 |
| Brand | Hard Korr |
| Shipping Weight | 14.0000kg |
