review.solar · Sourced values document
Smile M5
13.99–27.98 kWh · LFP · All-in-one · Single-phase
AlphaESS
Performance & Value
Released 2025 · Evidence checked 2026-07-31 · Scored to Solar Analytica battery rubric v2.9.0
63/100
Good
Overall
Score by category
Capacity & Usability
90
Power & Efficiency
58
Longevity (verified)
60
Safety & Chemistry
69
Guarantee & Backbone
56
Energy Ecosystem
52
Sourced specification values
Published capacity range13.99–27.98 kWh
Scored configuration13.99 kWh
Cell chemistryLFP (LiFePO4)
Usable capacity13.99 kWh
Usable energy / DoD100% DoD
Continuous power output5 kW
Warranty period10 yr
Safety certificationBasic cert
Manufacturing track record10-15 years

Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.

Page 2 · Audit sheet: complete sourced record

Smile M5 · 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.

Capacity & Usability
Usable energy / DoD (%)100datasheetSource
Modularity & scalabilityFully modular, ≤5 kWh increments, expandable in fielddatasheetSource
Battery generation compatibilitySame-generation expansion only: matching spec modules required; clean path butdatasheetSource
Power & Efficiency
Continuous power output (kW)5.0datasheetSource
Backup switching speed<20ms seamless relay switching (whole-home loads maintained through transitionstatedSource
Operating temperature rangeStandarddatasheetSource
Backup surge / motor-start capabilityNo surge rating published (integrated / AC-coupled system)datasheetSource
Longevity (verified)
Warranty throughput2.5-5 MWh warranted per kWh usablestatedSource
Warranty period (yrs)10statedSource
End-of-warranty retained capacity (%)70statedSource
Warranty degradation guaranteeEnd-point only: minimum capacity at end of warranty termstatedSource
Safety & Chemistry
Cell chemistryLFP (LiFePO4)datasheetSource
Safety certificationBasic certdatasheetSource
Thermal & fire mitigationBasicdatasheetSource
Ingress protection (outdoor)IP65+ / IP66 outdoor-rateddatasheetSource
Cell provenance & traceabilityUndiscloseddatasheetSource
Guarantee & Backbone
Warranty assuranceParts onlystatedSource
Manufacturing track record10-15 yearsstatedSource
Energy Ecosystem
Grid-forming & backup tierWhole-home seamless backup: full load, <20ms switchover (self-contained or valstatedSource
VPP & grid services readinessVPP-capable (protocol ready, no confirmed live program)datasheetSource
Firmware & security disclosureFirmware updates referenced; no security documentationdatasheetSource

review.solar · audit sheet · Solar Analytica battery rubric v2.9.0 · https://review.solar/cards/alphaess-smile-m5-13-99kwh-au