Form SB—01 · Battery profile
FranklinWH aPower 2
At 15 kWh, the aPower 2 is the largest single unit in our lineup. For a homeowner who wants whole-home backup, that size matters: one unit on the wall can do what would otherwise take two of something smaller.
Why we like it
The aPower 2 holds more energy per unit than anything else here, which keeps whole-home backup simple. Fewer units means fewer wall plates, fewer connection points, and a cleaner install. It runs through the FranklinWH aGate, a controller that coordinates the battery, your solar, the grid, and a backup generator if you have one. For homes that want one box to manage all of it, that integration is genuinely useful.
Who it's right for
- Homes that want whole-home backup from a single unit, not a stack
- Homeowners with a backup generator they want coordinated alongside the battery
- People who prefer the simplest possible install for the capacity they need
Where it falls short
FranklinWH is a newer name than Tesla or Enphase, so the pool of installers certified on it is smaller. In a major metro that is rarely a problem; in a rural county it can be. The system also depends on the aGate controller, so you are buying into the FranklinWH approach as a whole rather than a standalone battery. We confirm there is a certified installer in your area before we ever recommend it.
How it compares
Against the Powerwall 3, the aPower 2 carries 1.5 kWh more per unit but has a smaller installer network. Against the Enphase IQ Battery 10C, it holds about 5 kWh more, so fewer units reach whole-home backup. Against the Sonnen evo, the aPower is larger and less expensive per kWh, but Sonnen's cycle warranty runs longer. The right pick depends on your home.
Compare the rest of the lineup: Tesla Powerwall 3, Enphase IQ Battery 10C, Sonnen evo, Franklin Home Power 2, or see all battery brands.