| Published capacity range | 10 kWh |
| Scored configuration | 10 kWh |
| Cell chemistry | LFP (LiFePO4) |
| Usable capacity | 10 kWh |
| Usable energy / DoD | 90.9% DoD |
| Continuous power output | 4.61 kW |
| Warranty period | 10 yr |
| Safety certification | UL9540 / IEC62619 |
| Reliability testing | Not independently tested |
| Carbon footprint / EPD | Corporate ESG stated |
| Manufacturing track record | 15+ years, field-proven |
Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.
sonnenBatterie 10 · every criterion scored by the live rubric (Solar Analytica battery rubric v2.10.0), with its recorded value, evidence status, and any linked source. Page 1 carries the buying-decision summary; this page is the full record for verification and right of reply.
| Capacity & Usability | |||
| Usable energy / DoD (%) | 90.9 | datasheet | Source +2 |
| Power & Efficiency | |||
| Continuous power output (kW) | 4.61 | datasheet | Source +2 |
| Backup switching speed | >100ms or switching speed not disclosed | datasheet | Source +2 |
| Operating temperature range | Standard | datasheet | Source +2 |
| Backup surge / motor-start capability | No surge rating published (integrated / AC-coupled system) | reviewed absence | Source +2 |
| Longevity (verified) | |||
| Warranty throughput | >=5 MWh warranted per kWh usable (or >=5000-cycle equivalent) | datasheet | Source +2 |
| Warranty period (yrs) | 10 | datasheet | Source +2 |
| End-of-warranty retained capacity (%) | 80 | datasheet | Source +2 |
| Verified reliability | Not independently tested | reviewed absence | Source +2 |
| Cell balancing architecture | Pack-level only / not disclosed | reviewed absence | Source +2 |
| Warranty degradation guarantee | End-point only: minimum capacity at end of warranty term | datasheet | Source +2 |
| Safety & Chemistry | |||
| Cell chemistry | LFP (LiFePO4) | datasheet | Source +2 |
| Safety certification | UL9540 / IEC62619 | datasheet | Source +2 |
| AC terminal & connection protection | Not specified | reviewed absence | Source +2 |
| Ingress protection (outdoor) | Indoor only | datasheet | Source +2 |
| Cell provenance & traceability | Undisclosed | reviewed absence | Source +2 |
| Guarantee & Backbone | |||
| Warranty assurance | Parts only | datasheet | Source +2 |
| Financial strength & warranty backing | Financially strong (profitable / strong parent) | datasheet | Source +1 |
| Manufacturing track record | 15+ years, field-proven | datasheet | Source +1 |
| Energy Ecosystem | |||
| Grid-forming & backup tier | Essential-loads / partial backup only | datasheet | Source +2 |
| Firmware & security disclosure | Vulnerability disclosure policy + firmware/security documentation published | datasheet | Source +2 |
review.solar · audit sheet · Solar Analytica battery rubric v2.10.0 · https://review.solar/cards/sonnen-gmbh-wildpoldsried-germany-shell-owned-sonnenbatterie