SunBacked archive
Battery Backup
Home battery backup reviews and guides: LiFePO4, lead-acid, and whole-home solutions to keep the lights on when the grid goes down.

Battery Backup · Updated September 21, 2026
I’d start shopping for a 1/2 HP sump pump backup in the 2,000-3,000-watt pure sine wave class, with about 2,000 watt-hours of battery capacity for…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated September 18, 2026
I’d size a solar battery around the loads it must carry, not the biggest depth-of-discharge percentage on the brochure. A battery that allows deeper discharge…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated September 17, 2026
I’d size a home battery around the circuits you need during an outage before spending a dollar on whole-house backup. Keeping food cold, lights on,…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated August 30, 2026
I would not assume you can connect a portable Generac generator to your home’s natural gas line just because the fuel is available at the…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated August 25, 2026
I’ve told a lot of homeowners the same thing lately: if you are asking about the federal tax credit for home battery storage in 2026,…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated October 13, 2026
I’ve priced a lot of backup setups, and for most homes a real whole-house battery system lands somewhere between $12,000 and $35,000 installed, with larger…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated August 22, 2026
I tell homeowners this all the time: my first job with a battery backup system is not chasing the biggest number on the brochure, it…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated August 21, 2026
I have picked apart enough battery backup setups to tell you this upfront: I do not choose them by brand hype or app screenshots, I…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated August 12, 2026
I tell homeowners this all the time: a 2,000 sq ft house does not give me a battery size by itself, because I size backup…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated August 7, 2026
I’ve looked at a lot of battery quotes over the years, and my honest answer is this: a home battery can reduce your monthly electric…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated August 7, 2026
I have sized enough backup systems to tell you this without hedging: a fridge is usually an easy yes on solar battery backup, but air…
Editorial guide · check date, location, model, utility and code assumptions where relevant.

Battery Backup · Updated August 7, 2026
I have found that most home battery backups last long enough to be useful, but not long enough to justify sloppy math. In the real…
Editorial guide · check date, location, model, utility and code assumptions where relevant.