Best Home Battery Backup · head-to-head

Tesla Powerwall 3 vs FranklinWH aPower 2

A sourced, side-by-side comparison. Tesla Powerwall 3 is cheaper at $9200. Every spec and price links to its source.

Which is better: the Tesla Powerwall 3 or FranklinWH aPower 2?

The Tesla Powerwall 3 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 Tesla Powerwall 3 FranklinWH aPower 2
US price $9200
BrandTeslaFranklinWH
Released20232024
Usable capacity kwh 13.5 15
Continuous power (kW) 11.5 10
Peak power (kW) 22 15
Battery chemistry NMC LFP
Round trip efficiency 97.5 90
Scalable stackable Yes Yes
Warranty years 10 15
Backup transfer time ms
Weight (lb) 287 357

Sources — Tesla Powerwall 3: thegreenwatt.com (verified 2026-08-01). FranklinWH aPower 2: franklinwh.com (verified 2026-08-01).

What's the difference between the Tesla Powerwall 3 and FranklinWH aPower 2?

Where the two actually differ on the specs we track (7 of 9). Matching specs are omitted.

  • Usable capacity kwh: Tesla Powerwall 3 13.5 vs FranklinWH aPower 2 15
  • Continuous power (kW): Tesla Powerwall 3 11.5 vs FranklinWH aPower 2 10
  • Peak power (kW): Tesla Powerwall 3 22 vs FranklinWH aPower 2 15
  • Battery chemistry: Tesla Powerwall 3 NMC vs FranklinWH aPower 2 LFP
  • Round trip efficiency: Tesla Powerwall 3 97.5 vs FranklinWH aPower 2 90
  • Warranty years: Tesla Powerwall 3 10 vs FranklinWH aPower 2 15
  • Weight (lb): Tesla Powerwall 3 287 vs FranklinWH aPower 2 357

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