review.solar · Sourced values document
EQ5500 High-Voltage Stack
10.92–49.14 kWh · LFP · DC-coupled
FoxESS
Performance & Value
Evidence checked 2026-08-27 · Scored to Solar Analytica battery rubric v2.10.0
64/100
Good
Overall
Score by category
Capacity & Usability
90
Power & Efficiency
76
Longevity (verified)
56
Safety & Chemistry
76
Guarantee & Backbone
50
Energy Ecosystem
39
Sourced specification values
Published capacity range10.92–49.14 kWh
Scored configuration10.92 kWh
Cell chemistryLFP (LiFePO4)
Usable capacity10.92 kWh
Usable energy / DoD100% DoD
Continuous power output4.48 kW
Round-trip efficiency95%
Warranty period10 yr
Safety certificationUL9540 / IEC62619
Reliability testingNot independently tested
Manufacturing track record4-10 years (or new brand, strong parent heritage)

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

EQ5500 High-Voltage Stack · 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 (%)100datasheetSource
Modularity & scalabilityFully modular / stackable expandabledatasheetSource
Energy density / footprintAveragedatasheetSource
Battery generation compatibilitySame-generation expansion only: matching spec modules required; clean path butdatasheetSource +1
Power & Efficiency
Round-trip efficiency (%)95datasheetSource
Continuous power output (kW)4.48datasheetSource
Operating temperature rangeStandarddatasheetSource
Longevity (verified)
Warranty throughput2.5-5 MWh warranted per kWh usabledatasheetSource
Warranty period (yrs)10datasheetSource
End-of-warranty retained capacity (%)70datasheetSource
Verified reliabilityNot independently testedreviewed absenceSource +1
Cell balancing architecturePack-level only / not disclosedreviewed absenceSource +1
Warranty degradation guaranteeEnd-point only: minimum capacity at end of warranty termdatasheetSource
Safety & Chemistry
Cell chemistryLFP (LiFePO4)datasheetSource
Safety certificationUL9540 / IEC62619datasheetSource
Thermal & fire mitigationPassive thermal mgmtdatasheetSource +1
Ingress protection (outdoor)IP65+ / IP66 outdoor-rateddatasheetSource
Guarantee & Backbone
Warranty assuranceParts onlydatasheetSource
Manufacturing track record4-10 years (or new brand, strong parent heritage)datasheetSource
Energy Ecosystem
Open protocol & API maturityProprietary / no documented APIreviewed absenceSource

review.solar · audit sheet · Solar Analytica battery rubric v2.10.0 · https://review.solar/cards/foxess-eq5500-10-92-49-14-au