Backup power, sized right
Tell us what you need to keep running. We'll do the math manufacturers use and show you the generators and power stations that can actually handle it, with honest specs and no sponsored picks.
How it works
The fridge, the sump pump, a CPAP, Wi-Fi… Only what you'd run at the same time during an outage.
Running watts, the biggest motor start-up surge, a 20% safety margin, 240 V needs and altitude, the same way generator makers size them.
The smallest generators and power stations that cover your list, how many hours each battery would last, and nothing bigger than you need.
Tools & guides
Your options
There's no single best machine. The right one depends on how long your outages last and what you need to run.
A big rechargeable battery with outlets. Plug in what matters and it just works, indoors and in silence.
A quiet, fuel-efficient generator with clean power that's safe for electronics. A favorite for RVs and short home outages.
The most watts per dollar. Often dual fuel and with 240 V for well pumps and central air, through a transfer switch.
Why plan ahead
Most bad purchases come from guessing. A generator that can't handle the surge of a fridge compressor or a sump pump will stall exactly when you need it. One that's twice too big costs more, weighs more and burns fuel for nothing.
Safety first