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Out of stockHECKMAN RLFP-51.2V-100Ah LiFePO4 Energy Bank (5.12 kWh)
The HECKMAN RLFP-51.2V-100Ah is a rack-format 51.2 V LiFePO₄ module delivering 5.12 kWh usable per block—designed for parallel expansion up to 16 units on commercial LV hybrid busbars.
Tech Specs
| Parameter | Value |
|---|---|
| Technical Data | |
| Brand | HECKMAN |
| Model | RLFP51100A/100 |
| Nominal Voltage | 51.2 V |
| Cell Capacity | 100 Ah |
| Number of Cells | 16S |
| Cell Technology | LiFePO4 |
| Cell Grade | Grade A |
| Nominal Capacity | 5120 Wh / 5.12 kWh |
| Usable Capacity | 4860 Wh / 4.86 kWh |
| Nominal Charge/Discharge Power | 4.86 kW |
| Efficiency | 95% |
| Max. Charge/Discharge Current | <= 100A (1C) |
| Recommended Charging Current | 30A (0.3C) |
| Discharge Overcurrent Protection | 105A alarm, 110A switch-off |
| Charge Overcurrent Protection | 100A alarm, 110A switch-off |
| Module Expansion | Parallel up to 16 units (81.92 kWh) |
| Communication | CAN/RS-485 |
| SoC Indicator | LED |
| Main Switch | Yes |
| EPO - Fire Protection | Yes |
| Operating Indicator | LED |
| Operating Mode Selection | DIP switch |
| Dimensions (W x D x H) | Rack 3U — 482 x 485 x 133 mm |
| Weight | 49 kg |
| Noise Level | 0 dB |
| Operating Temperature | -15°C to 60°C |
| Charging Temperature | 0°C to 55°C |
| Relative Humidity | ≤90% (40°C ± 2°C) |
| IP Rating | IP21 |
| Warranty | 10 years |
Rack mounting (RLFP) prioritizes density in IT-style cabinets or custom energy storage rooms versus wall aesthetics. Each module includes integrated BMS reporting SOC, voltage, and temperature over CAN to Deye SG03LP1/SG04LP3/SG05LP3 masters. Parallel expansion increases amp-hour capacity while holding 51.2 V nominal—charge controllers manage current sharing when cross-wired per Deye guidelines.
LiFePO₄ chemistry trades energy density for cycle life and thermal stability—appropriate for daily peak-shaving cycles at 0.35 ₾/kWh. Install in ventilated enclosures; while safer than NMC, high continuous charge/discharge still demands airflow and torque-checked busbolts.
Pair with three-phase LV hybrids from 3.6 kW through 20 kW. Do not series-connect for HV inverters—use RHFP05100A instead. For wall-mounted residential aesthetics, specify WLFP variant.
Ideal for
- ✓ Commercial LV rooms needing rack density
- ✓ Systems targeting 20–80 kWh via parallel 5 kWh bricks
- ✓ Installers already commissioning Deye CAN BMS on LP3 hybrids
Technical FAQ
Parallel limit?
Up to 16 RLFP modules in approved parallel configurations—verify aggregate current against inverter charge/discharge limits.
Wall vs rack?
RLFP is rack-oriented; WLFP adds LCD and wall-mount ergonomics for the same 5.12 kWh class.
HV compatibility?
No—51.2 V parallel only. HV Deye requires RHFP series strings.
Cross-wiring rule?
For parallel strings without busbars, connect positive to first module and negative to last module to balance charge paths—mirror Deye 12K/20K manuals.
Official product documentation and datasheets.
Datasheet (PDF) PDFCompatible models & energy storage
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