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ESS-LV Series — 48/51 V Low-Voltage Battery Modules
3 Models available · Energy Storage Batteries
Wall- and rack-mount LiFePO4 modules from 5 to 15 kWh at 48/51.2 V, built for parallel expansion in residential and light-commercial storage.
Model Number Breakdown
- Wall or rack mounting
- Parallel expansion
- Integrated BMS
- CAN/RS485 communication
Specifications Range
All specifications and dimensions can be customized upon request
| Key parameters | Model Range |
|---|---|
| Nominal Voltage | 51.2 V |
| Capacity | 5.12–15.36 kWh |
| Cell Capacity | 100 Ah, 200 Ah, 300 Ah |
| Chemistry | LiFePO4 (LFP) |
| Cycle Life | 6000 cycles |
| DoD | 90 % |
⚙How It Works
A low-voltage LiFePO4 battery stores energy chemically and releases it on demand at 48/51.2 V. The LFP cathode is chosen for its thermal stability and flat discharge curve: it tolerates deep cycling without the thermal runaway risk of nickel-based cells, and its voltage stays nearly flat until nearly empty, simplifying inverter control. An integrated BMS monitors every cell and protects the pack across its entire life.
▦Structure & Composition
The ESS-LV module packs prismatic LiFePO4 cells into a wall- or rack-mount steel enclosure, wired as 16 series cells for a 51.2 V nominal string. Each module carries its own BMS board — cell-voltage and temperature taps, a contactor and current sensor — plus CAN/RS485 ports to the inverter. Modules parallel together for extra capacity, and the BMS coordinates state of charge across the stack.
Model Range
| Model | Nominal Voltage | Capacity | Chemistry | Cycle Life | DoD | Reference Price |
|---|---|---|---|---|---|---|
| QD-BAT-LV-5 | 51.2 V | 5.12 kWh | LiFePO4 (LFP) | 6000 cycles | 90 % | … |
| QD-BAT-LV-10 | 51.2 V | 10.24 kWh | LiFePO4 (LFP) | 6000 cycles | 90 % | … |
| QD-BAT-LV-15 | 51.2 V | 15.36 kWh | LiFePO4 (LFP) | 6000 cycles | 90 % | … |
Applications
Selection Guide
- Residential and light commercial storage of 5–15 kWh where wall or rack mounting fits the space.
- Add modules in parallel to grow capacity in steps of the base unit's kWh rating.
- Keep charge/discharge within the rated C-rate and DoD to preserve the 6000-cycle design life.
Frequently Asked Questions
Why LiFePO4 over NMC?
Lithium iron phosphate is thermally stable with a flat discharge curve and longer cycle life — the safer, longer-lived choice for stationary storage.
How do I expand capacity?
Parallel additional modules; the BMS coordinates them so the bank behaves as one larger battery.
What is the usable depth of discharge?
Up to 90 % of rated capacity is usable per cycle, which is why fewer kWh of LFP goes further than lead-acid or lower-DoD chemistries.
Instant Selection & Quote Calculator
Select your specifications to get an estimated price instantly.
| Base price (interpolation) | $486 |
| × Product factor | ×1.0000 |
| × Country factor | ×1.0000 |
| × Copper-linked factor | ×1.0000 |
| + Options / accessories | $0 |
Complete equipment — no winding copper linkage
Reference prices are for estimation only and do not constitute a formal offer.
We will reply with your latest quote instantly.
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