| Published capacity range | 20.6 kWh |
| Scored configuration | 20.6 kWh |
| Cell chemistry | LFP (LiFePO4) |
| Usable capacity | 20.6 kWh |
| Continuous power output | 11 kW |
| Warranty period | 10 yr |
| Safety certification | Basic cert |
Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.
S10 X 21 · 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 page is the full record for verification and right of reply.
| Power & Efficiency | |||
| Continuous power output (kW) | 11 | datasheet | Source |
| Backup switching speed | >100ms or switching speed not disclosed | datasheet | Source +1 |
| Backup surge / motor-start capability | No surge rating published (integrated / AC-coupled system) | reviewed absence | Source |
| Longevity (verified) | |||
| Warranty throughput | Throughput terms not published | reviewed absence | Source |
| Warranty period (yrs) | 10 | stated | Source |
| End-of-warranty retained capacity (%) | 80 | datasheet | Source |
| Warranty degradation guarantee | End-point only: minimum capacity at end of warranty term | stated | Source +1 |
| Safety & Chemistry | |||
| Cell chemistry | LFP (LiFePO4) | datasheet | Source |
| Safety certification | Basic cert | datasheet | Source |
| Thermal & fire mitigation | Basic | reviewed absence | Source |
| Cell provenance & traceability | Undisclosed | reviewed absence | Source |
| Guarantee & Backbone | |||
| Warranty assurance | Parts only | stated | Source |
review.solar · audit sheet · Solar Analytica battery rubric v2.9.0 · https://review.solar/cards/e3dc-s10-x-21-de