Category: Battery Backup

A whole-home battery backup keeps your essential circuits running when the grid goes down, and choosing one means working through real tradeoffs: how many kilowatt-hours you actually need, whether to back up the whole panel or just critical loads, and which battery chemistry fits your budget and climate. The wrong size is an expensive mistake in either direction, so the math matters more than the marketing. This hub covers home battery backup from first principles. You will find sizing guidance, the difference between partial and whole-home systems, transfer switch and interlock basics, LiFePO4 versus other chemistries, and honest comparisons of the systems worth considering. The goal is a setup that holds through a real outage, not a spec sheet that looks good in a showroom.