sonnensonnenBatterie 10/5.5
The sonnen sonnenBatterie 10/5.5 is a home battery with usable capacity 5 kWh, charge power (continuous) 3.4 kW and cell chemistry LFP.1
Key figures
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SEAI home battery grant
UnknownA €600 grant for home battery storage systems was announced on 29 September 2026 and opens from 6 October 2026, subject to final implementation arrangements. Check SEAI for the detailed conditions before applying.
Technical specifications
| General | |
|---|---|
| Cell chemistry | LFP1 |
| Performance | |
| Usable capacity | 5 kWh1 |
| Nominal capacity | 5.5 kWh1 |
| Expandable up to | 198 kWh1 |
| Charge power (continuous) | 3.4 kW1 |
| Discharge power (continuous) | 3.4 kW1 |
| Dimensions & weight | |
| IP rating | IP301 |
| Min. operating temperature | -5 °C1 |
| Width | 690 mm1 |
| Depth | 270 mm1 |
| Weight | 98 kg1 |
| Warranty & lifespan | |
| Warranty | 10 years1 |
Manufacturer documentation
- Product page — sonnenBatterie 10 – 1
- Datasheet / specifications — Technische Daten sonnenBatterie 10 10/5,5 10/11
External links to sonnen's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
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Frequently asked questions
What is the usable capacity of the sonnen sonnenBatterie 10/5.5?
The usable capacity of the sonnen sonnenBatterie 10/5.5 is 5 kWh.1
What is the charge power (continuous) of the sonnen sonnenBatterie 10/5.5?
The charge power (continuous) of the sonnen sonnenBatterie 10/5.5 is 3.4 kW.1
Which cell chemistry does the sonnen sonnenBatterie 10/5.5 use?
The cell chemistry of the sonnen sonnenBatterie 10/5.5 is LFP.1
What is the warranty of the sonnen sonnenBatterie 10/5.5?
The warranty of the sonnen sonnenBatterie 10/5.5 is 10 years.1
Sources
- sonnenBatterie 10, 1 — sonnen · accessed 29 Sept 2026
- SEAI home battery grant — Sustainable Energy Authority of Ireland (SEAI)