FranklinWH aPower 2
From Home batteries: capacity and warranty: What do the main home batteries actually guarantee, beyond the headline warranty length?
Capacity: 15 kWh
Usable or rated energy capacity as the maker states it for one unit.
rated energy capacity of 15 kWh
Source: https://www.franklinwh.com/document/franklin-home-power-fhp-limited-warranty-for-end-users-en. Read 2026-10-31. Checked by a second reader.
Warranty: 15 years
The warranty's stated length in years.
free from defects for fifteen (15) years
Source: https://www.franklinwh.com/document/franklin-home-power-fhp-limited-warranty-for-end-users-en. Read 2026-10-31. Checked by a second reader.
Capacity guaranteed: 70% at the end of the 15-year warranty period
How much capacity the warranty promises, and when.
70% at the end of the 15-year warranty period
Source: https://www.franklinwh.com/document/franklin-home-power-fhp-limited-warranty-for-end-users-en. Read 2026-10-31. Checked by a second reader.
Usage limit: 60 MWh aggregate throughput
The cycles or energy throughput that can end the warranty early.
Aggregate Throughput 15 kWh* 70% at the end of the 15-year warranty period 60 MWh
Source: https://www.franklinwh.com/document/franklin-home-power-fhp-limited-warranty-for-end-users-en. Read 2026-10-31. Checked by a second reader.