[{"data":1,"prerenderedAt":214},["ShallowReactive",2],{"nav-articles":3,"\u002Fhome-backup":4,"related-\u002Fhome-backup":91},[],{"id":5,"title":6,"body":7,"date":81,"description":82,"extension":83,"meta":84,"navigation":85,"path":86,"seo":87,"silo":88,"stem":89,"__hash__":90},"content\u002Fhome-backup\u002Findex.md","Home Backup Power: Batteries That Keep the Lights On",{"type":8,"value":9,"toc":74},"minimark",[10,14,17,28,45,53,56,59,63,71],[11,12,13],"p",{},"When the grid goes down, a home backup battery keeps your essentials running: the fridge, the internet, medical devices, and a few lights. Unlike a gas generator, it is silent, works indoors, and needs no fuel runs at 2 a.m.",[11,15,16],{},"There are two broad paths, and picking the right one saves you thousands.",[18,19,21,27],"h2",{"id":20},"_1-plug-in-vs-whole-home",[22,23],"icon",{"className":24,"name":26},[25],"size-6","solar:home-smile-bold-duotone"," 1. Plug-in vs whole-home",[29,30,31,39],"ul",{},[32,33,34,38],"li",{},[35,36,37],"strong",{},"Plug-in \u002F expandable stations:"," large portable units (often 2 to 6 kWh, expandable) that you plug into with extension cords or a small transfer switch. Cheaper, renter-friendly, no electrician required for the basic setup.",[32,40,41,44],{},[35,42,43],{},"Whole-home systems:"," permanently installed batteries wired to your panel through an automatic transfer switch. They power the whole house and switch over instantly, but need a licensed installer.",[18,46,48,52],{"id":47},"_2-sizing-how-many-kwh-do-you-need",[22,49],{"className":50,"name":51},[25],"solar:battery-charge-bold-duotone"," 2. Sizing: how many kWh do you need?",[11,54,55],{},"Add up what you truly need to keep running during an outage, then multiply by the hours you want to cover. 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