| Published capacity range | 14–54 kWh |
| Scored configuration | 14 kWh |
| Cell chemistry | LFP (LiFePO4) |
| Usable capacity | 14 kWh |
| Usable energy / DoD | 100% DoD |
| Continuous power output | 10 kW |
| Warranty period | 15 yr |
| Safety certification | UL9540 / IEC62619 |
| Reliability testing | Not independently tested |
| 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.
EK90 HS5 Three-Phase · 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 (%) | 100 | datasheet | Source |
| Modularity & scalability | Fully modular / stackable expandable | datasheet | Source |
| Energy density / footprint | Compact high-density (integrated) | datasheet | Source |
| Battery generation compatibility | Same-generation expansion only: matching spec modules required; clean path but | datasheet | Source |
| Power & Efficiency | |||
| Continuous power output (kW) | 10.0 | datasheet | Source |
| Backup switching speed | <20ms seamless relay switching (whole-home loads maintained through transition | datasheet | Source |
| Operating temperature range | Standard | datasheet | Source |
| Backup surge / motor-start capability | Peak/surge rating published with duration | datasheet | Source |
| Longevity (verified) | |||
| Warranty throughput | 2.5-5 MWh warranted per kWh usable | datasheet | Source |
| Warranty period (yrs) | 15 | datasheet | Source |
| End-of-warranty retained capacity (%) | 60 | datasheet | Source |
| Verified reliability | Not independently tested | reviewed absence | Source +1 |
| Cell balancing architecture | Pack-level only / not disclosed | datasheet | Source |
| Warranty degradation guarantee | End-point only: minimum capacity at end of warranty term | datasheet | Source |
| Safety & Chemistry | |||
| Cell chemistry | LFP (LiFePO4) | datasheet | Source |
| Safety certification | UL9540 / IEC62619 | datasheet | Source |
| Thermal & fire mitigation | Passive thermal mgmt | datasheet | Source |
| Ingress protection (outdoor) | IP65+ / IP66 outdoor-rated | datasheet | Source |
| Cell provenance & traceability | Undisclosed | reviewed absence | Source |
| Guarantee & Backbone | |||
| Warranty assurance | Parts only | datasheet | Source |
| Manufacturing track record | 15+ years, field-proven | datasheet | Source |
| Energy Ecosystem | |||
| Grid-forming & backup tier | Whole-home seamless backup: full load, <20ms switchover (self-contained or val | datasheet | Source |
| Open protocol & API maturity | Proprietary / no documented API | reviewed absence | Source +1 |
| VPP & grid services readiness | VPP-capable (protocol ready, no confirmed live program) | datasheet | Source +1 |
| Firmware & security disclosure | Firmware updates referenced; no security documentation | reviewed absence | Source +1 |
review.solar · audit sheet · Solar Analytica battery rubric v2.10.0 · https://review.solar/cards/saj-ek90-hs5-three-phase-14-54-au