Best Home Battery Backup · head-to-head

Home Battery 400V (10 kWh) vs PWRcell 2 (M3, 9 kWh)

A sourced, side-by-side comparison. Home Battery 400V (10 kWh) is cheaper at —. Every spec and price links to its source.

Which is better: the Home Battery 400V (10 kWh) or PWRcell 2 (M3, 9 kWh)?

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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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Home Battery 400V (10 kWh) PWRcell 2 (M3, 9 kWh)
US price
BrandSolarEdgeGenerac
Released2024
Usable capacity kwh 9.7 9
Continuous power (kW) 5 5.2
Peak power (kW) 7.5 15.6
Battery chemistry NMC
Round trip efficiency 94.5 88
Scalable stackable Yes Yes
Warranty years 10 10
Backup transfer time ms 50
Weight (lb) 238 394.1

Sources — Home Battery 400V (10 kWh): acsolarwarehouse.com (verified 2026-08-01). PWRcell 2 (M3, 9 kWh): generac.com (verified 2026-08-01).

What's the difference between the Home Battery 400V (10 kWh) and PWRcell 2 (M3, 9 kWh)?

Where the two actually differ on the specs we track (5 of 9). Matching specs are omitted.

  • Usable capacity kwh: Home Battery 400V (10 kWh) 9.7 vs PWRcell 2 (M3, 9 kWh) 9
  • Continuous power (kW): Home Battery 400V (10 kWh) 5 vs PWRcell 2 (M3, 9 kWh) 5.2
  • Peak power (kW): Home Battery 400V (10 kWh) 7.5 vs PWRcell 2 (M3, 9 kWh) 15.6
  • Round trip efficiency: Home Battery 400V (10 kWh) 94.5 vs PWRcell 2 (M3, 9 kWh) 88
  • Weight (lb): Home Battery 400V (10 kWh) 238 vs PWRcell 2 (M3, 9 kWh) 394.1

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