FranklinWH aPower 2 vs Enphase IQ Battery 10C
A straight, side by side read on specs and warranties, with the honest caveats. Every figure is from the manufacturer datasheet; sources are at the bottom.
| Spec | FranklinWH aPower 2 | Enphase IQ Battery 10C |
|---|---|---|
| Chemistry | LFP | LFP |
| Usable capacity | 15 kWh | 10 kWh |
| Continuous power | 10 kW | 7.08 kW |
| Peak power | 15 kW | Not published |
| Round-trip efficiency | 90% | 90% |
| Warranty | 15 years or 60 MWh throughput, whichever comes first | 60 percent capacity at up to 15 years or 6,000 cycles |
| Backup scope | Whole-home capable | Whole-home capable |
| Inverter | Integrated | Integrated |
What actually differs
- More usable capacity: the FranklinWH aPower 2 offers 15 kWh vs 10 kWh, so at that size it carries more of your home for longer per charge.
- More continuous power: the FranklinWH aPower 2 sustains 10 kW vs 7.08 kW, which matters for running big loads like an AC at once.
- Efficiency is not apples to apples here: the FranklinWH aPower 2 quotes 90% (grid to battery to load (AC round trip)) and the Enphase IQ Battery 10C quotes 90% (AC round trip (DC round trip is 96 percent)), so do not read the raw numbers as a direct ranking.
Which one pays off is a numbers question.
Neither spec sheet tells you the payback in your home. That comes from your rate plan and incentives.
Run the Worth It calculator →aPower 2 vs IQ Battery 10C FAQ
Is the FranklinWH aPower 2 or the Enphase IQ Battery 10C better?
Neither is universally better. The FranklinWH aPower 2 carries more usable capacity (15 kWh vs 10 kWh), while the smaller unit can cost less and fit tighter spaces. The right pick depends on your home's loads, backup needs, and budget, not the brand on the box.
What is the difference in usable capacity between the FranklinWH aPower 2 and the Enphase IQ Battery 10C?
The FranklinWH aPower 2 offers 15 kWh and the Enphase IQ Battery 10C offers 10 kWh of usable capacity.
Which has more continuous power, the FranklinWH aPower 2 or the Enphase IQ Battery 10C?
The FranklinWH aPower 2 sustains 10 kW continuous vs 7.08 kW, which matters for running big loads like an air conditioner at once.
Is the FranklinWH aPower 2 or the Enphase IQ Battery 10C cheaper?
Neither spec sheet tells you the installed cost or the payback in your home. That depends on your electricity rate plan and local incentives, so run the numbers for your address rather than comparing sticker prices.
Sources
Source: FranklinWH aPower 2 datasheet, Dec 2025. Specs verified 2026-07-01. Figures are per single unit at beginning of life; confirm the current datasheet with your installer.
Source: Enphase IQ Battery 10C datasheet, Feb 2026. Specs verified 2026-08-06. Figures are per single unit at beginning of life; confirm the current datasheet with your installer.