| 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 | 4.6 kW |
| Round-trip efficiency | 96.8% |
| Cycle life | 10000 cycles |
| 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 v2.9.0), with its recorded value, evidence status, and any linked source. Page 1 carries the buying-decision summary; this and the next page are the full record for verification and right of reply.
| Capacity & Usability | |||
| Usable energy / DoD (%) | 90.9 | stated | No link |
| Modularity & scalability | Fully modular / stackable expandable | est. | No link |
| Energy density / footprint | Average | est. | No link |
| Power & Efficiency | |||
| Round-trip efficiency (%) | 96.8 | est. | No link |
| Continuous power output (kW) | 4.6 | stated | No link |
| Backup switching speed | >100ms or switching speed not disclosed | stated | Source |
| Operating temperature range | Standard | stated | No link |
| Backup surge / motor-start capability | No surge rating published (integrated / AC-coupled system) | stated | No link |
| Longevity (verified) | |||
| Cycle life (cycles to 70%) | 10000 | stated | Source |
| Warranty throughput | >=5 MWh warranted per kWh usable (or >=5000-cycle equivalent) | stated | No link |
| Warranty period (yrs) | 10 | est. | No link |
| End-of-warranty retained capacity (%) | 70 | est. | No link |
| Verified reliability | Not independently tested | stated | No link |
| Cell balancing architecture | Active cell-level balancing (energy recirculation) | stated | No link |
| Warranty degradation guarantee | Linear degradation guarantee: maximum annual capacity loss specified | stated | No link |
review.solar · audit sheet · Solar Analytica battery rubric v2.9.0 · https://review.solar/cards/sonnen-gmbh-wildpoldsried-germany-shell-owned-sonnenbatterie
sonnenBatterie 10 · continued from page 2 · Solar Analytica rubric Solar Analytica battery rubric v2.9.0.
| Safety & Chemistry | |||
| Cell chemistry | LFP (LiFePO4) | est. | No link |
| Safety certification | UL9540 / IEC62619 | stated | No link |
| AC terminal & connection protection | Not specified | stated | No link |
| Ingress protection (outdoor) | Indoor only | stated | No link |
| Cell provenance & traceability | Undisclosed | stated | No link |
| Guarantee & Backbone | |||
| Warranty assurance | Parts & labour | est. | No link |
| Financial strength & warranty backing | Financially strong (profitable / strong parent) | stated | No link |
| Manufacturing track record | 15+ years, field-proven | stated | No link |
| Energy Ecosystem | |||
| Grid-forming & backup tier | True grid-forming: black-start capable, creates AC reference, parallel source | stated | No link |
| Open protocol & API maturity | Modbus TCP + REST local + SunSpec certified | est. | No link |
| VPP & grid services readiness | VPP-capable + live VPP program (named market) | est. | No link |
| EV charging integration | No EV integration | est. | No link |
| Thermal load management | No thermal load integration | est. | No link |
| Smart home & IoT depth | Community integration (Home Assistant, no native support) | est. | No link |
| Firmware & security disclosure | Security page or vulnerability disclosure published | stated | Source |
review.solar · audit sheet · Solar Analytica battery rubric v2.9.0 · https://review.solar/cards/sonnen-gmbh-wildpoldsried-germany-shell-owned-sonnenbatterie