Some links on this site earn us a commission. How we work
We size portable power stations the way an engineer would — from your actual load, with the arithmetic left in. Then we tell you which units clear it.
Estimated capacity you need
1,400 – 1,700 Wh
1,180 Wh/day ÷ 85% = 1,388 Wh. Run it with your own devices →
Common use cases, and the capacity each one tends to need.
Featured guide
Our top picks across every capacity class, with the price-per-watt-hour math shown. Sized by use case — from weekend camping batteries to whole-home backup units.
Read the guide →
Popular articles
A spec-by-spec comparison of the two dominant power station brands — recharge speed, weight, expandability, price per watt-hour — and clear rules for which one fits your use case.
Read article →
Use our watt-hour worksheet to find your capacity target — add up your devices, pick your days off-grid, and get a number before you look at a single product.
Read article →
How to size and choose a battery that reliably runs your CPAP overnight — at a campsite or through a power outage — including the humidifier math nobody tells you about.
Read article →
Researched. Sourced. Shown.
Every sizing claim shows its working — watt-hours in, efficiency factor applied, capacity band out. If you disagree with an assumption you can see exactly which one.
Capacity, inverter limits, chemistry and cycle ratings are taken from manufacturer documentation, not marketing pages. We list MSRP, never a scraped “current price” we can't stand behind.
Picks are decided and written up first. Affiliate links are added afterwards and have never reordered a list. We don't run sponsored placements.