FroniusReserva 6.3
The Fronius Reserva 6.3 is a home battery with usable capacity 6.31 kWh, charge power (continuous) 6.55 kW and round-trip efficiency 95 %.1,2
Key figures
Technical specifications
| General | |
|---|---|
| Cell chemistry | LFP2 |
| Performance | |
| Usable capacity | 6.31 kWh2 |
| Nominal capacity | 6.68 kWh1 |
| Charge power (continuous) | 6.55 kW2 |
| Discharge power (continuous) | 6.55 kW2 |
| Efficiency | |
| Round-trip efficiency | 95 %2 |
| Electrical | |
| Coupling | DC-coupled2 |
| Backup power | Yes2 |
| Dimensions & weight | |
| IP rating | IP652 |
| Min. operating temperature | -20 °C2 |
| Width | 772 mm2 |
| Height | 890 mm2 |
| Depth | 176 mm2 |
| Weight | 86.5 kg2 |
| Warranty & lifespan | |
| Warranted cycles | 6,0002 |
| Warranty | 10 years2 |
Manufacturer documentation
- Datasheet / specifications — The Fronius storage solution – V09 Sep 2026
External links to Fronius's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
Compare with
Frequently asked questions
What is the usable capacity of the Fronius Reserva 6.3?
The usable capacity of the Fronius Reserva 6.3 is 6.31 kWh.1,2
What is the charge power (continuous) of the Fronius Reserva 6.3?
The charge power (continuous) of the Fronius Reserva 6.3 is 6.55 kW.1,2
Sources
- CEC approved solar batteries (Australia) — Clean Energy Regulator (Australian Government), CC BY 4.0 · accessed 29 Sept 2026
- The Fronius storage solution, V09 Sep 2026 — Fronius International GmbH · accessed 29 Sept 2026