Low-voltage home battery
Firefly Low Voltage LiFePO4 Home Battery
A modular 51.2V LiFePO4 battery system for residential solar storage, backup power and small distributed energy projects. It works with compatible inverters and gives you a flexible 3.6-14.4kWh platform for different residential energy-storage needs.
Model range: Firefly-3.6K / 7.2K / 10.8K / 14.4K
Product overview
A flexible entry-to-mid range battery for your projects
Firefly is designed to provide a simple, expandable low-voltage battery platform for mainstream residential solar storage. It is not an all-in-one unit; it should be matched with a suitable inverter and configured according to household load and backup requirements.
- Start from 3.6kWh and scale to 14.4kWh per stack, with larger configurations subject to system design
- Stackable cable-free structure helps reduce installation time and keeps the finished system clean
- CAN, RS485 and WiFi support practical communication with mainstream inverter brands, subject to protocol confirmation
- Use a compatible inverter and confirm local standards before final project selection
Product Core Advantages
Two core reasons Firefly is the best entry-to-mid range CVC Energy home energy storage battery for mainstream residential solar channels.
A beautiful modular LiFePO4 home battery from 3.6kWh to 14.4kWh
Firefly gives distributors a low voltage LiFePO4 home battery that can start small and scale by module, making it one of the easiest residential solar battery choices for mainstream home energy storage projects.
A clean stackable battery platform for faster residential installation
The cable-free stackable appearance, CAN/RS485/WiFi communication and mainstream inverter matching support make Firefly a practical home energy storage battery for installers, distributors and new-market trial sales.
Product strengths
How CVC Energy helps you position this battery
Use these product points to compare fit, explain the solution clearly, and build a more reliable residential energy-storage offer for your market.
Modular capacity
Choose from 3.6kWh to 14.4kWh per stack and plan larger configurations around the project design.
Installer-friendly design
A stackable cable-free structure supports clean, efficient installation workflows.
Mainstream integration
CAN, RS485 and WiFi provide practical communication options, subject to inverter protocol confirmation.
Technical specifications
Technical specifications
Use these figures for first-round product selection. Final configuration should be confirmed according to inverter model, local standards and project requirements.
| Model | Firefly-3.6K | Firefly-7.2K | Firefly-10.8K | Firefly-14.4K |
|---|---|---|---|---|
| Battery module | 3.6kWh / 37kg / LiFePO4 per module | |||
| Module layers | 1 | 2 | 3 | 4 |
| Nominal capacity | 3.6kWh | 7.2kWh | 10.8kWh | 14.4kWh |
| Usable capacity | 3.24kWh | 6.48kWh | 9.72kWh | 12.96kWh |
| Rated voltage | 51.2Vdc | |||
| Battery voltage range | 41.6-58.4Vdc | |||
| Maximum continuous charge / discharge current | 37.5A | 75A | 75A | 75A |
| Charge and discharge efficiency | >98% | |||
| Communications | CAN / RS485 / WiFi | |||
| Operating ambient temperature | -10 to 45°C | |||
| Operating humidity | 5-90% RH, non-condensing | |||
| Protection grade | IP54 | |||
| Cooling method | Natural cooling | |||
| Dimensions (W × D × H ±2mm) | 430 × 430 × 279mm | 430 × 430 × 448mm | 430 × 430 × 617mm | 430 × 430 × 786mm |
| Weight (±0.2kg) | 49kg | 86kg | 123kg | 160kg |
| Certification and safety standards | TUV (IEC62619, IEC62040) / CB / RCM / CE / UN38.3 / RoHS | |||
| Parallel operation | Up to 3 units can operate in parallel, providing a maximum capacity of 43.2kWh and a maximum operating current of 75A × 3. | |||
| Technical notes: Charge/discharge mode: CC-CV/CC. Actual available energy varies with ambient temperature, operating power and power-module efficiency. Charging is derated at ambient temperatures from -10°C to 15°C. | ||||
Standard models support prompt initial supply. Volume orders are produced against confirmed specifications, with a typical lead time of 15-45 days depending on model, quantity, customization, documentation requirements and destination. Final configuration, MOQ, delivery and warranty terms are confirmed in the quotation.
Need full datasheets, pricing or compatibility confirmation?
Tell CVC Energy your target capacity, inverter model and destination market. We will confirm the suitable configuration and commercial details.
Download the available datasheet, technical parameters or installation documents from the CVC Energy Download Center.