Form SB—01 · Battery profile
Enphase IQ Battery 10C
Enphase built its name on microinverters, and the IQ Battery 10C is that same philosophy in battery form. Instead of one large inverter running the whole system, the work is spread across small units, so no single failure takes the battery down.
Why we like it
The IQ Battery 10C is modular in a way most batteries are not. Its microinverter-native design spreads the conversion work across many small components, which means a single fault degrades the system slightly rather than knocking it out. It is AC-coupled, so it bolts onto an existing solar setup cleanly. And it carries a 15-year warranty, longer than most of the field. For a home that already runs Enphase solar, this battery is the natural, low-friction next step.
Who it's right for
- Homes that already have Enphase solar, where the battery joins an ecosystem it was designed for
- Homeowners who want to start smaller and add capacity later in modular steps
- Retrofit projects, since the AC-coupled design adds onto existing solar without re-wiring it
Where it falls short
The IQ Battery 10C is at its best inside the Enphase ecosystem. If your home runs a different solar inverter brand, or you are starting from scratch with no solar at all, the ecosystem advantage mostly disappears and an integrated unit like the Powerwall 3 may be simpler. Per-unit capacity is also the smallest in our lineup at 10.08 kWh, so whole-home backup usually means stacking more than one.
How it compares
Against the Powerwall 3, the Enphase wins on modularity and warranty length, loses on per-unit size. Against the FranklinWH aPower 2, it holds about 5 kWh less per unit. Against the Sonnen evo, the two are close on capacity, and the choice comes down to ecosystem and budget. We make that call based on your actual home.
Compare the rest of the lineup: Tesla Powerwall 3, FranklinWH aPower 2, Sonnen evo, Franklin Home Power 2, or see all battery brands.