Enphase IQ Battery 5P
From Home batteries: capacity and warranty: What do the main home batteries actually guarantee, beyond the headline warranty length?
Capacity: 5 kWh
Usable or rated energy capacity as the maker states it for one unit.
Usable capacity 5.0 kWh
Source: https://enphase.com/download/iq-battery-5p-data-sheet. Read 2026-10-31. Read once.
Warranty: 15 years
The warranty's stated length in years.
ends on the earlier of (a) 15 years from the Activation Date or (b) 6,000 discharged cycles
Source: https://enphase.com/download/iq-battery-5p-uscan-2024-12-27-warranty. Read 2026-10-31. Checked by a second reader.
Capacity guaranteed: 70% at the end of the tenth year; 60% at the end of the fifteenth year
How much capacity the warranty promises, and when.
(i) seventy percent (70%) of the Covered IQ Battery Product nameplate rating at the end of the tenth year of the Warranty Period and (ii) sixty percent (60%) of the Covered IQ Battery Product nameplate rating at the end of the fifteenth year
Source: https://enphase.com/download/iq-battery-5p-uscan-2024-12-27-warranty. Read 2026-10-31. Checked by a second reader.
Usage limit: 6,000 discharged cycles
The cycles or energy throughput that can end the warranty early.
ends on the earlier of (a) 15 years from the Activation Date or (b) 6,000 discharged cycles
Source: https://enphase.com/download/iq-battery-5p-uscan-2024-12-27-warranty. Read 2026-10-31. Checked by a second reader.