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The Pravig JouleCube Firefly 5.0 is a high-performance 5.12 kWh lithium iron phosphate (LiFePO₄) energy storage system, designed for reliable solar and backup power applications. Built for homes and small commercial setups, Firefly 5.0 delivers stable power, long cycle life, and seamless inverter compatibility.
This battery stores energy generated from solar panels or the grid and supplies clean, uninterrupted power during outages or peak demand. With advanced Battery Management System (BMS) protection, Firefly 5.0 ensures safety, efficiency, and consistent performance over years of use.
Its compact, wall-mountable design makes installation simple, while support for parallel expansion allows you to scale storage capacity as your energy needs grow.
| Specification |
Details |
| Battery Type |
Lithium Iron Phosphate (LiFePO₄) |
| Usable Capacity |
5.0 kWh |
| Nominal Voltage |
48 V |
| Cell Chemistry |
LiFePO₄ (LFP) |
| Cycle Life |
6000 cycles (up to 10+ years) |
| Depth of Discharge (DoD) |
Up to 95% |
| Efficiency (Round-trip) |
≥ 95% |
| Operating Temperature |
−20°C to 60°C (charge/discharge) |
| Storage Temperature |
−20°C to 45°C |
| Battery Management System (BMS) |
Yes – Smart Protection (overcharge, over-discharge, over-current, temperature, short-circuit) |
| Communication Port |
CAN / RS485 (optional, based on inverter compatibility) |
| Parallel Expandable |
✔ Yes (connect multiple units for increased capacity) |
| Installation Type |
Indoor/Outdoor (weather protected area recommended) |
| Dimensions (Approx.) |
[Insert specific dimensions] |
| Weight (Approx.) |
[Insert specific weight] |
| Warranty |
5 Years Standard |
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Why Customers Love the Pravig JouleCube Firefly 5.0
📈 Long Service Life -
Built for durability — up to 6000+ cycles means years of dependable backup without frequent replacements.
⚡ Advanced LiFePO₄ Technology - Lithium Iron Phosphate cells deliver superior safety, longer life, and higher performance than traditional batteries.
🔐 Smart Battery Management System (BMS) - Protects the battery from over-charge, over-discharge, short circuits, and extreme temperatures — safe, stable, and reliable.
🔌 Expandable for Future Needs - Want more backup power later? Simply add more units — the Firefly platform supports parallel expansion.
🏠 Perfect for Solar & Grid Backup - Works seamlessly with hybrid solar inverters and energy storage systems — ideal for homes, offices, and shops.
🏠 Applications
Residential solar energy storage
Backup power for homes and small businesses
Hybrid solar systems
Off-grid installations
Emergency power support
Unmatched Performance and Longevity
The JouleCube Firefly is a state-of-the-art lithium solar battery designed for home backup. It offers a remarkable capacity of 5.12 kWh, enabling you to store substantial energy from your solar panels. But this isn’t just about capacity; the Firefly battery also boasts up to 6000 life cycles. This means you can rely on it for years, making it an economical choice for energy independence.
Smart Technology for Efficient Energy Management
With the JouleCube Firefly, you not only gain storage but also smart energy management features. It comes equipped with advanced technology that optimizes energy use in your home. However, it doesn't end there; its lightweight design makes installation hassle-free, ensuring you can start enjoying your solar energy benefits without delay. This battery integrates seamlessly with your existing solar system, making it a smart investment.
Eco-Friendly Solution for a Sustainable Future
Utilizing the JouleCube Firefly helps reduce your carbon footprint, supporting a sustainable lifestyle. Because it harnesses renewable energy, you contribute to environmental conservation while enjoying consistent power supply. So, whether it's for backup during outages or for everyday use, the Firefly battery ensures you stay powered while caring for the planet.
