Enphase Home Batteries

Enphase has 2 units on Outage Geek, priced from $5,772 to $6,500. The least expensive Enphase model here is the Enphase IQ Battery 10C at $5,772, and the lineup below runs cheapest first.

~$5,772

Home Battery System · Battery (LiFePO4)

Enphase IQ Battery 10C

Installers now quote Enphase's fourth-generation battery ahead of the older IQ Battery 5P. Each 10C holds 10 kWh of LFP and carries its own neutral-forming microinverters, so a single unit can island a house without a separate hybrid inverter, and it can be stacked to 80 kWh. Continuous output is 7.08 kW with a 14.16 kW peak, which is a real step up from the 5P but still well short of a Powerwall 3 on the amps a central air conditioner draws at start. It is AC-coupled, which makes it the easy retrofit onto an existing solar array of any brand, though owners say it only feels seamless inside an all-Enphase system. The unit is heavy at 317 lb installed. Enphase publishes no retail price; $5,772 is a distributor's hardware price, and installed quotes with a controller and labor run roughly $13,000.

7,080 W / 14,160 W surge · up to furnace blower, sump pump or a window AC

capacity: 10,000 Wh
expands to: 80,000 Wh
Transfer switch: transfer-switch ready

Best for Homes with Enphase microinverter solar, or an AC-coupled retrofit, that want modular capacity and a long warranty rather than the highest single-unit output.

Full spec sheet

~$6,500

Home Battery System · Battery (LiFePO4)

Enphase IQ Battery 5P

The modular, reliability-first choice - especially for homes already running Enphase microinverters. Each 5kWh module contains six grid-forming microinverters producing 3.84kW continuous (7.68kW peak for motor starts), and you stack modules to fit the budget. Price shown is typical installed cost per module ($5,000-8,000 depending on region and whether a System Controller is included). The 15-year/6,000-cycle warranty is the longest in the industry by five years, and it's the spec owners cite most when justifying the premium. The recurring criticism: per-kWh cost runs $1,000-1,600 installed - roughly double a Powerwall 3 - and whole-home backup realistically needs three-plus modules and the IQ System Controller before it starts a heat pump. Owner sentiment on the no-single-point-of-failure architecture is very positive; sentiment on the final invoice less so.

3,840 W / 7,680 W surge · up to fridge, freezer and the essentials

capacity: 5,000 Wh
expands to: 40,000 Wh
Transfer switch: transfer-switch ready

Best for Enphase-solar homes that want matched, modular storage with the longest warranty available.

Full spec sheet