Buying guides

Power station guides, organized by the job

Home backup, RV life, camping, CPAP, tight budgets, solar outages, and fridge runtime. Each guide starts with the load and works back to the station.

WattBench EditorialSpecs checked November 2026No sponsored rankings

Buying guide

Most home-backup purchases start with the wrong question. Start with the loads you actually need, then choose the station that fits them.

Best overallBluetti Elite 200 V2

Buying guide

A 30A outlet on the box does not mean you can run a 30A camper at full load. Here is how to choose a station that fits the way you actually travel.

Best for 30A RVsBluetti AC200P L

Buying guide

Campsite power is a weight-and-watts trade-off. We rank five stations from backpacking-light to basecamp-capable.

Best ultralightEcoFlow RIVER 3 Plus

Buying guide

The humidifier is the variable that decides your runtime. Here is how to size a station for a full night, plus a plan for longer outages.

Best valueBluetti Elite 100 mini

Buying guide

Under $1,000 is the most competitive part of the market. Here is where the real value sits, and where the marketing gets ahead of the specs.

Best overallBluetti Elite 200 V2

Buying guide

Solar can extend an outage, but it will not refill a 2kWh battery in an hour. Here is what a realistic solar backup looks like.

Best overallBluetti Elite 200 V2

Buying guide

The answer depends on duty cycle, not just watt-hours. Here is how to estimate your fridge runtime and which stations last longest.

Longest runtime per dollarBluetti Elite 400

Not sure where to start?

Use the tools first

The calculator and load planner turn a vague plan into a watt-hour number. Then the guides make more sense.

Pick a station and a load. See hours, days, and how much battery a multi-day outage needs.

Check the appliances you want to run, and get a daily watt-hour estimate plus station matches.