FranklinWH
aPower 2
—
Released 2024
Best Home Battery Backup · head-to-head
A sourced, side-by-side comparison. aPower 2 is cheaper at —. Every spec and price links to its source.
FranklinWH
—
Released 2024
SolarEdge
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The Home Battery 400V (10 kWh) wins 1 of the 1 specs we compare head to head; the other wins 0.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | — | — |
| Brand | FranklinWH | SolarEdge |
| Released | 2024 | — |
| Usable capacity kwh | 15 | 9.7 |
| Continuous power (kW) | 10 | 5 |
| Peak power (kW) | 15 | 7.5 |
| Battery chemistry | LFP | — |
| Round trip efficiency | 90 | 94.5 |
| Scalable stackable | Yes | Yes |
| Warranty years | 15 | 10 |
| Backup transfer time ms | — | — |
| Weight (lb) | 357 | 238 |
Sources — aPower 2: franklinwh.com (verified 2026-08-01). Home Battery 400V (10 kWh): acsolarwarehouse.com (verified 2026-08-01).
Where the two actually differ on the specs we track (6 of 9). Matching specs are omitted.