Buying guides and deep dives for apartments, whole-home kits, sizing in days, and honest surge checks. Find the right guide for your outage plan, fast.
Not sure what size you need?
Estimate runtime for your devices with our free calculator.
Featured guideBuyer's GuidesSkip the marketing math. Size a plug-in home backup battery around what you need to keep running — measured in days, not hours — and why surge rating matters more than the number on the box.
Specs & SizingBest for sizing & specs
A technical buying guide covering 240V well-pump startup demand, runtime, split-phase output, and transfer equipment.
Apartments & CondosBest for renters & condos
A focused comparison of Pila Mesh and Bluetti FridgePower for renters who need to keep a refrigerator, Wi-Fi, and a few essential devices running without modifying an apartment electrical panel.
Home BackupBest for outage preparedness
A critical-load sizing deep dive for homeowners who need a backup battery to keep basement water moving and a gas furnace circulating heat without overbuying capacity or overlooking startup surge and circuit access.
Home BackupBest for outage preparedness
Critical-load backup picks for homeowners who need a few circuits to stay live during an outage, compared on surge headroom, 240V support, and transfer path.
Apartments & CondosBest for renters & condos
Compare renter-friendly backup batteries for a refrigerator, Wi-Fi, and home office by runtime, surge output, UPS speed, size, and installation limits.