Best Home Battery Backup · head-to-head

ESS Home 8 vs Home Battery 400V (10 kWh)

A sourced, side-by-side comparison. ESS Home 8 is cheaper at —. Every spec and price links to its source.

Which is better: the ESS Home 8 or Home Battery 400V (10 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 ESS Home 8 Home Battery 400V (10 kWh)
US price
BrandLG ElectronicsSolarEdge
Released
Usable capacity kwh 14.4 9.7
Continuous power (kW) 7.5 5
Peak power (kW) 9 7.5
Battery chemistry Li-ion (cylindrical cells)
Round trip efficiency 90 94.5
Scalable stackable Yes Yes
Warranty years 10 10
Backup transfer time ms 100
Weight (lb) 359 238

Sources — ESS Home 8: lg.com (verified 2026-08-01). Home Battery 400V (10 kWh): acsolarwarehouse.com (verified 2026-08-01).

What's the difference between the ESS Home 8 and Home Battery 400V (10 kWh)?

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

  • Usable capacity kwh: ESS Home 8 14.4 vs Home Battery 400V (10 kWh) 9.7
  • Continuous power (kW): ESS Home 8 7.5 vs Home Battery 400V (10 kWh) 5
  • Peak power (kW): ESS Home 8 9 vs Home Battery 400V (10 kWh) 7.5
  • Round trip efficiency: ESS Home 8 90 vs Home Battery 400V (10 kWh) 94.5
  • Weight (lb): ESS Home 8 359 vs Home Battery 400V (10 kWh) 238

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