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51.2V 100Ah LiFePO4 Battery 5.12kWh for Solar Inverter Systems
51.2V 100Ah LiFePO4 Battery 5.12kWh for Solar Inverter Systems
The Voltertech BAT-5KWH-51.2V-W is a 51.2V 100Ah LiFePO4 battery providing 5.12kWh nominal energy for compatible low-voltage solar inverter systems. It supports CAN and RS485 communication and can be expanded with up to 15 parallel battery modules when greater storage capacity is required.
51.2V 100Ah LiFePO4 Battery for Solar Inverters
For a low-voltage solar storage system, battery selection involves more than choosing the correct kWh capacity. The battery voltage, inverter current requirements, charging settings and communication protocol must also match.
The BAT-5KWH-51.2V-W uses a 51.2V nominal LiFePO4 platform commonly applied in compatible 48V-class solar storage systems. Before ordering, the exact inverter brand and model should be checked to confirm electrical and communication compatibility.
Key Specifications
| Model | BAT-5KWH-51.2V-W |
|---|---|
| Battery Chemistry | LiFePO4 |
| Nominal Voltage | 51.2V |
| Nominal Capacity | 100Ah |
| Nominal Energy | 5.12kWh |
| Recommended Charge Current | ≤100A |
| Recommended Charge Voltage | 57.6V |
| BMS Charge Cut-Off Voltage | 58.4V |
| Recommended Low Voltage Disconnect | ≤45V |
| BMS Discharge Cut-Off Voltage | ≤40V |
| Recommended Maximum Load Power | ≤4kW |
| Ultimate Maximum Load Power | ≤5kW |
| Communication | RS485 / CAN |
| Parallel Expansion | Up to 15 Units |
| Protection Rating | IP21 |
| Charge Temperature | 0°C to +45°C |
| Discharge Temperature | -20°C to +55°C |
| Storage Temperature | -5°C to +35°C |
| Cycle Life | 8000 Cycles at 25°C, 100% DOD |
| Specified Service Life | 10 Years |
| Dimensions | 550 × 455 × 155mm |
| Approx. Weight | 47.15kg |
| Battery Documentation | UN38.3 / MSDS |
| Cell Certification Reference | UL1642 / IEC62133 |
| Shipping Classification | UN3480, Class 9 |
How to Match the Battery with a 48V-Class Inverter
A 51.2V nominal battery may be suitable for many low-voltage solar inverters, but nominal voltage alone does not confirm compatibility.
Installers should check the inverter's supported lithium battery voltage range, charge and discharge current limits and communication protocol before system configuration.
- Confirm the exact inverter brand and model
- Check the inverter battery voltage range
- Compare charging current with the battery limit
- Confirm CAN or RS485 communication protocol
- Check inverter power against battery current capability
Charging and Load Power Reference
The technical specification recommends a charge voltage of 57.6V and a charge current of no more than 100A. The recommended maximum load power is up to 4kW, with an ultimate maximum load reference of up to 5kW.
These values should not be interpreted as automatic compatibility with every 4kW or 5kW inverter. Actual system design must also consider inverter DC current demand, surge load, battery settings, cable sizing and BMS limits.
CAN / RS485 Communication
CAN and RS485 interfaces allow communication with compatible solar inverter platforms. Communication may allow the inverter and battery BMS to exchange operating information such as battery status and charging requirements.
The supplied product information lists compatibility references for multiple inverter brands, but communication protocols can differ between individual models and firmware versions. For this reason, the exact inverter model should be provided before ordering.
Parallel Battery Expansion
The BAT-5KWH-51.2V-W supports up to 15 compatible units in parallel. This allows installers to increase battery energy capacity while continuing to use the same 51.2V battery platform.
51.2V / 100Ah / 5.12kWh nominal energy.
Up to 15 compatible modules according to system design.
Battery quantity should remain within inverter and system current limits.
IP21 enclosure for indoor or otherwise protected environments.
Frequently Asked Questions
1. Is a 51.2V LiFePO4 battery compatible with a 48V solar inverter?
It can be compatible with many 48V-class lithium battery inverters, but compatibility should not be confirmed from nominal voltage alone. Check the inverter battery voltage range, current limits and CAN or RS485 protocol for the exact inverter model.
2. What charging settings are specified for this 51.2V battery?
The recommended charge voltage is 57.6V and the recommended charge current is no more than 100A. The BMS charge cut-off voltage is specified at 58.4V. Final inverter or charger settings should follow the approved battery configuration.
3. Can I use this battery with a 5kW inverter?
The specification lists a recommended maximum load power of up to 4kW and an ultimate maximum load reference of up to 5kW. A 5kW inverter should therefore be checked carefully for DC current, surge demand, BMS limits and communication compatibility before selection.
4. Does CAN or RS485 mean every lithium inverter is plug-and-play?
No. CAN and RS485 describe the available communication interfaces, but individual inverter brands and models can use different communication protocols. Send the exact inverter model so compatibility can be checked before ordering.
5. How many 5.12kWh batteries can be connected in parallel?
The product specification supports up to 15 compatible battery units in parallel. Fifteen 5.12kWh modules equal 76.8kWh of nominal energy, although final battery quantity should also be matched to the inverter, cables, protection equipment and installation design.
6. What information should I provide before ordering this battery?
Provide the inverter brand and exact model, inverter power, required battery quantity or target kWh capacity, expected load power and installation environment. This information helps confirm voltage, current and communication compatibility.
Need to Match a 51.2V Battery with Your Solar Inverter?
Voltertech supplies low-voltage LiFePO4 batteries for solar installers, distributors and energy storage system integrators.
Send us your inverter brand, exact model, inverter power and required battery capacity. We can help check battery quantity and communication compatibility for your system.
51.2V 100Ah LiFePO4 Battery
,5.12kWh LiFePO4 Battery
,Solar Inverter Systems Lithium Battery
Customer Service
- Email: info@voltertechenergy.com
- Tel: +86 13600078043
- WhatsApp: 8613600078043
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WeChat:
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