Firefly Low Voltage LiFePO4 Home Battery
Firefly is 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 solar storage needs.
A flexible entry-to-mid range battery for your projects
Firefly is designed to help you use 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 the household load and backup requirements.
How We Help You Use This Product
Use these points to compare product fit, explain the solution clearly, and build a more reliable home energy storage offer for your market.
Modular Capacity
Start from 3.6kWh and scale to 14.4kWh per stack, with larger configurations subject to system design.
Installer-Friendly Design
Stackable cable-free structure helps reduce installation time and keeps the finished system clean.
Mainstream Integration
CAN, RS485 and WiFi support practical communication with mainstream inverter brands, subject to protocol confirmation.
Technical Specifications
Use these figures for first-round product selection. Final configuration should be confirmed according to inverter model, local standards and project application.
| Model range | Firefly-3.6K / 7.2K / 10.8K / 14.4K |
|---|---|
| Battery chemistry | LiFePO4 |
| Nominal / usable capacity | 3.6 / 3.24kWh; 7.2 / 6.48kWh; 10.8 / 9.72kWh; 14.4 / 12.96kWh |
| Nominal voltage | 51.2Vdc |
| Voltage range | 41.6-58.4Vdc |
| Continuous current | 37.5A for 3.6K; 75A for larger models |
| Communication | CAN / RS485 / WiFi |
| Protection | IP54, natural cooling |
| Expansion | Up to 3 systems and 43.2kWh, subject to system design |
| Standards | TUV (IEC62619, IEC62040), CB, RCM, CE, UN38.3, RoHS |
Application Fit
Firefly is suitable when you need a practical, scalable low-voltage battery for ordinary residential solar storage.
Solar Self-Consumption
Store surplus solar power and improve daily home energy usage.
Backup Power
Support selected household loads such as lights, routers, refrigerators and small appliances.
Channel Trial Sales
A useful product platform when you want to test residential storage demand in a new market.
This video introduces the Firefly low-voltage home battery, including its modular design, product appearance and residential energy storage application.
Need full datasheets, pricing or compatibility confirmation?
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Product FAQ
Find quick answers before you choose a model, match an inverter or request documents.
Is Firefly an all-in-one system?
No. Firefly is a battery system and needs to be matched with a compatible inverter.
Can Firefly be expanded later?
Yes. Its modular design supports capacity expansion, subject to inverter and system configuration.
Which inverter brands can be considered?
Mainstream brands such as Growatt, Deye, Solis, Victron and SMA can be discussed, subject to final protocol confirmation.
Is it suitable for off-grid use?
Yes, when matched with a suitable inverter and correctly designed system.