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Battery backup, standby generator, or portable generator?
Pick the type first, then the product. Which kind fits your home, in about a minute.
Buying guides
Start with what you need to keep on. Each guide shows the runtime math and names the trade-offs of every pick.
Getting started
Which kind of battery backup fits your home?
Getting started
How to choose a power station: the specs that matter
Kitchen
Keep the fridge and freezer cold through a 2–3 day outage
Medical devices
Battery backup for a CPAP: what size you need
Basement
Keeping a sump pump running when the power's out
Whole home
Whole-home battery systems compared
Solar