FranklinWH
aPower 2
—
Released 2024
Best Home Battery Backup · head-to-head
aPower 2 vs EverVolt 2.0
A sourced, side-by-side comparison. aPower 2 is cheaper at —. Every spec and price links to its source.
Panasonic
EverVolt 2.0
—
Released 2021
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | aPower 2 | EverVolt 2.0 |
|---|---|---|
| US price | — | — |
| Brand | FranklinWH | Panasonic |
| Released | 2024 | 2021 |
| Usable capacity kwh | 15 | 17.1 |
| Continuous power (kW) | 10 | 7.6 |
| Peak power (kW) | 15 | 9.6 |
| Battery chemistry | LFP | LFP |
| Round trip efficiency | 90 | — |
| Scalable stackable | Yes | Yes |
| Warranty years | 15 | 10 |
| Backup transfer time ms | — | — |
| Weight (lb) | 357 | — |
Sources — aPower 2: franklinwh.com (verified 2026-08-01). EverVolt 2.0: na.panasonic.com (verified 2026-08-01).
What's the difference between the aPower 2 and EverVolt 2.0?
Where the two actually differ on the specs we track (4 of 9). Matching specs are omitted.
- Usable capacity kwh: aPower 2 15 vs EverVolt 2.0 17.1
- Continuous power (kW): aPower 2 10 vs EverVolt 2.0 7.6
- Peak power (kW): aPower 2 15 vs EverVolt 2.0 9.6
- Warranty years: aPower 2 15 vs EverVolt 2.0 10