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Capacity class

What a 1,500Wh power station actually runs

A capacity figure describes what the battery holds, not what reaches your outlet. Reserve and conversion losses take a share before any appliance sees a watt, and the output rating decides what you can plug in at all.

Research by the Power Station Station Editorial Team

Rated capacity
1,505 Wh
Average across the 1 record in this class.
Usable through AC
1,192 Wh
After 90% usable capacity and 88% conversion efficiency.
Records in class
1
Each one source-checked against the manufacturer’s own published specifications.

Our answer

A 1,500Wh station delivers roughly 1,192Wh through its AC outlets once reserve and conversion losses are taken out, which is what actually drains during an outage.

Current records in this class

Capacity puts these records on the same shelf, not on equal footing. Continuous output, published surge behaviour, solar acceptance, and carrying weight reveal the practical differences.

Source-checked power station records in the 1,500Wh class
RecordCapacityContinuous outputPublished peakWeight
Goal Zero Yeti 15001,505.28 Wh2,000 W3,600 W52.75 lb

A record with no published peak needs model-level verification before a motor start can be relied on.

What this much energy buys you

Each figure is calculated against a station in this class using the same visible planning profile. They are calculations rather than measured results, and a load with a motor still has to clear its startup demand first.

  • Household refrigerator: about 23 hours on the Goal Zero Yeti 1500.
  • Chest freezer: about 41 hours on the Goal Zero Yeti 1500.
  • Upright freezer: about 27 hours on the Goal Zero Yeti 1500.
  • Mini fridge: about 55 hours on the Goal Zero Yeti 1500.
  • 12V portable fridge: about 73 hours on the Goal Zero Yeti 1500.
  • Starlink Mini: about 36 hours on the Goal Zero Yeti 1500.
  • Wi-Fi router and modem: about 66 hours on the Goal Zero Yeti 1500.
  • Laptop computer: about 30 hours on the Goal Zero Yeti 1500.
  • Television: about 14 hours on the Goal Zero Yeti 1500.
  • CPAP machine: about 34 hours on the Goal Zero Yeti 1500.

When to move up a class, and when not to

Move up when a full day of use exceeds the delivered AC energy above, when a load runs for long unbroken periods, or when you cannot count on recharging between uses.

Do not move up to solve an output problem. If an appliance exceeds the continuous rating, or starts harder than the inverter can supply, a larger battery in the same output class changes nothing. Capacity and output are separate specifications.

Continue through this cluster

Use the next page that answers your unresolved constraint

The 1,000Wh class belowLess weight and lower cost, if the energy still covers the plan.The 2,000Wh class aboveMore delivered energy when a full day of use runs past this class.Every current product recordCompare the full database across capacity classes.Appliance power requirementsStart from the load rather than the hardware.Calculated runtime answersSee every station measured against every load.Outage load plannerSize a whole outage plan rather than one appliance.Portable power guide hubBrowse completed capacity, electrical, appliance, and planning guides.

Evidence used on this page

Important fields are tied to a specific source. Manufacturer claims, government guidance, calculations, and planning assumptions remain separate.

  1. Published specification table covering capacity, chemistry, cycle life, inverter output, the High Power Port solar window, combined solar input, weight, and warranty.

    official product page