
Wattkeeper redefines home energy storage with industrial-grade performance for seamless energy independence.
More than just a battery, it’s your 24/7 power quardian -shielding you from blackouts, defending against rising energy costs, and empowering your sustainable lifestyle.
Modern energy security, perfected.
Our solutions
WATTKEEPER
LOW VOLTAGE
ES SERIES
WALL MOUNTED
FLOOR STANDING
AVAILABLE MODELS:
Wall Mounted: ES4890W | ES48120W | ES48280W | ES48300W
Floor Standing: ES4890T | ES48120T
The Wattkeeper Low Voltage ES48W is a lithium iron phosphate (LiFePO4) battery pack for an external inverter, featuring a sleek, Nall-mounted design suitable for both indoor and outdoor environments. Certain models (ES48280W, ES48300W) can be paralleled with up to 20batteries, offering a scalable usable capacity from 4.61 kWh to 87 kWh.

The Wattkeeper Low Voltage ES48T is a lithium iron phosphate (LiFePO4) battery pack designed for use with an external inverter. The system is built to scale, effortlessly meeting your project’s energy requirements, no matter how large. Start with a single ES4890T (4.61 kWh) and expand your capacity upto 49 kWh by connecting up to 16 units in parallel.

Model Specifications
| Module | ES4890W | ES48120W | ES48280W | ES48300W |
|---|---|---|---|---|
| Number of Modules | 16 | 16 | 20 | 20 |
| Usable Energy | 4.61 kWh | 6.14 kWh | 14.34 kWh | 15.36 kWh |
| Scalable | 16 | 16 | 20 | 20 |
| Battery Module | ES4890T (4.61 kWh, 51.2V, 45 kg) | |||||||
|---|---|---|---|---|---|---|---|---|
| Number of Modules | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Usable Energy | 4.61 kWh | 9.22 kWh | 13.83 kWh | 18.44 kWh | 23.05 kWh | 27.66 kWh | 32.27 kWh | 36.88 kWh |
| Scalable | 16 | 8 | 5 | 4 | 3 | 2 | 2 | 2 |
| Battery Module | ES48120T (6.14 kWh, 51.2V, 57 kg) | |||||||
|---|---|---|---|---|---|---|---|---|
| Number of Modules | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Usable Energy | 6.14 kWh | 12.29 kWh | 18.43 kWh | 24.58 kWh | 30.72 kWh | 36.86 kWh | 43.01 kWh | 49.15 kWh |
| Scalable | 16 | 8 | 5 | 4 | 3 | 2 | 2 | 2 |