AKAIYAI A51R100P 51.2V Lithium Battery
Brand: AKAIYAI
Model: A51R100-P
5.12kWh modular lithium battery, scalable up to 40kWh 100A rated current, 6000+ cycle life High-voltage accuracy (±3%), 90% DOD, 15-year lifespan CAN & RS485 communication, inverter-compatible 5-year warranty (excluding burns & physical damage) 115,000৳
The AKAIYAI A51R100P 51.2V Lithium Battery is a modular lithium-ion (LiFePO₄) battery designed for residential and small-commercial energy storage applications — especially for solar-PV systems, off-grid installations, or hybrid/backup power setups.
Each module delivers 5.12 kWh of usable energy, with a nominal voltage of AKAIYAI A51R100P 51.2V Lithium Battery and capacity 100 Ah — making it a compact, scalable building block for energy storage.
Because of its modular design, multiple units can be connected in parallel to enlarge the storage bank (the seller mentions scalability up to ~ 40 kWh).
Built-in protection, smart battery management, and compatibility with standard inverter communication protocols (CAN / RS485 / RS232) make this battery suitable for modern solar + storage systems.
| Model | A51R100-P |
| Nominal Voltage | 51.2V |
| Capacity | 100Ah |
| Energy | 5120Wh(25℃,0.2C) |
| Internal Resistance | ≤10mΩ@50%SOC |
| Cycle life | ≥6000(@25℃,0.5C/0.5C 70EOL) |
| Months Self Discharge | <3% |
| Efficiency of Charge | 100%@0.5C |
| Efficiency of Discharge | 96%-99%@0.5C |
| Standard Charge | |
| Charge Mode | CC:0.5C 56.8V CV:58.4V |
| Continuous Current | 50A |
| Recom.Charge Current | 20A |
| Max.Charge Current | 50A |
| Charge Cut-off Voltage | 58.4V |
| Standard Discharge | |
| Continuous Current | 100A |
| Recom.Discharge Current | 50A |
| Max.Disharge Current | 100A |
| Discharge Cut-off Voltage | 44.8V |
| Environmental | |
| Charge Temperature | -10～55℃@60±25%Relative Humidity |
| Discharge Temperature | -20~55℃@60±25%Relative Humidity |
| Storage Temperature | 0~30℃@60±25%Relative Humidity |
| IP Grade | IP20 |
| Mechanical | |
| Cell&Method | 3.2V100AH16S1P |
| Metal Case | Metal |
| Metal Dimensions(mm) L*W*H | 430*580*150mm |
| Weigh (kg) | 45.2 |
| Terminal | Storage Connector |
| Communication | RS485 RS232 CAN |
| BMS | 16S100A |
| Parallel | Up to 16 units |
