BSLBATT® is a globally recognised, respected, and trusted brand that offers the best lithium batteries for smarter, and cleaner renewable energy storage.
BSL understand that you need more than just a lithium battery manufacturer, you need a brand that you can partner with for life.
Let’s work together for a brighter, better and greener future.The energy can lie in your hands.

Thanks to its technology, the BSLBATT® 48v 135ah lithium-ion battery can be installed in any position (vertically, lying on the side or head down).
In the vast majority of cases, the charging system can be kept the same and no additional accessories are required to perform the replacement.

The 51.2V series is designed for lower voltage, lower power and longer run-time applications.
They are built with LFP Technology that offers outstanding intrinsic safety and excellent float and cycle life resulting in low cost of ownership.
- Eco-friendly
- Lithium iron phosphate battery(LiFePO4) Currently the safest lithium technology Excellent resistance to abuse
- Less than 3% self discharging
- Maintenance-free, modular, and lightweight
Up to 60% weight saving
- Battery monitoring storage history
- Built in safety protection
- Quality guaranteed
- 10 Years Warranty
- 15-18 Years Designed service life 150A DC breaker--on/off switch

| Specification | Details |
|---|
| Nominal Voltage | 51.2V (16S) |
| Nominal Capacity | 135Ah |
| Energy | 6912Wh |
| Efficiency | 99% |
| Self Discharge | <1% per month |
| Max. Discharge Current | 105A |
| Peak Discharge Current | 150A (1 second) |
| Recommended Discharge Current | 90A |
| Voltage at End of Discharge | 47–48V |
| Discharge Temperature | -20°C to 60°C |
| Charge Temperature | 0°C to 45°C |
| Storage Temperature | -20°C to 55°C |