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.

67 published results · Page 1 of 6

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Battery Backup · Updated September 21, 2026

What Size Solar Generator Do You Need for a 1/2 HP Sump Pump?

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

Solar Battery Depth of Discharge: Usable Capacity and Lifespan

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

How to Size a Home Battery Backup: Capacity and Runtime Calculation

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 25, 2026

What is the tax credit for home battery storage?

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

How much does a whole-house battery backup system cost?

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

How much load do you need from my battery backup system?

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

How did we choose these home battery backup systems?

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

How much backup power do I need for a 2,000 sq ft home?

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

Does a home battery really reduce my monthly electricity bill?

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.