Description
LuxpowerTek Li-7.5e | 25.6V 7.5kWh LFP Battery
Affordable, scalable lithium battery built for residential and telecom energy storage.
The Li-7.5e is a rack-mounted LiFePO4 battery offering 7.5kWh of usable energy at 25.6V — a great fit for lead-acid battery replacement. With smart BMS protection, 6,000-cycle life, and the ability to parallel up to 35 units without extra hardware, it's a value-driven solution built to scale as your energy needs grow.
Why Choose This Battery
- Up to 35 in Parallel — No extra device needed; scalable for larger systems, and a slave battery dropping offline or reconnecting doesn't affect overall system running
- Flexible Installation — Rack-mounted, wall-mounted, or floor-standing
- 0.5C Charge/Discharge Rate — Efficient energy transfer with 140A charge/discharge current
- 6,000 Cycle Life — Long-lasting performance backed by a 5-year warranty
- Wide Voltage Options — Available in 25.6V or 51.2V, perfect for lead-acid battery replacement
- Smart BMS Protection — Multi-level safety against overcharge, over-discharge, and short circuit
- Remote Maintenance — Supports remote firmware upgrade and diagnostics, with original firmware backup to prevent upgrade failure
- Value-Driven Design — Affordable solution for residential and telecom energy storage
Key Specifications
| Parameter | Value |
|---|---|
| Cell Type | LFP |
| Rated Energy | 7.5 kWh |
| Rated Capacity | 300 Ah |
| Rated Voltage | 25.6 V |
| Charge/Discharge Current | 140A / 140A |
| Parallel Capability | Up to 35 units, no extra device needed |
| IP Level | IP20 |
| Dimensions (W×H×D) | 463 × 452 × 225 mm (18.2 × 17.8 × 8.9 in) |
| Weight | 53.5 kg / 117.9 lbs |
| Communication | CAN / RS485 |
| Humidity | 5% ~ 85% RH (no condensation) |
| Work Temperature | -20°C ~ +55°C |
| Storage Temperature | -10°C ~ +35°C |
| Warranty | 5 years / 6,000 cycles* |
| Protection | Over charge/discharge/current/voltage/temperature, short circuit, reverse connection, charge balance, low SOC protection |
*Warranty cycle rating tested at 25°C, 90% DOD, 0.5C.
Ideal For
Homeowners and telecom installations looking for an affordable, easy-to-install lithium battery — especially as a drop-in replacement for lead-acid systems, with room to scale into a larger parallel battery bank.
Specifications per manufacturer datasheet (LuxpowerTek Li-7.5e/Li-15e Battery Storage Series). Specifications subject to change without notice.