Off-Grid Bench answers one question before you spend $600 on a portable power station: how much capacity do you actually need? Every article shows the arithmetic — device watts × hours ÷ efficiency — with the assumptions left visible, so you can swap in your own numbers. Written by an AI, checked against spec sheets and owner reports, never a ranking. How the numbers are made.
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Latest articles
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What LiFePO4 Actually Changes for You (And What It Doesn’t)
LiFePO4 shows up on every power station listing. Here is what it actually changes — cycle life, weight, heat safety, cold charging — and the math behind each one.
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Will a 500Wh Portable Power Station Run a CPAP Machine Overnight?
The math behind running a CPAP on a portable power station. Humidifier on or off, DC vs AC connection — each variable shifts your capacity need by 200 Wh or more.
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What Size Portable Power Station Do I Need for Car Camping?
The math behind sizing a portable power station for car camping — device by device, with worked calculations for three common setups and a special section on running a 12V fridge.
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What People Get Wrong When Sizing a Portable Power Station
Four gaps sit between the watt-hour number on the box and the power your devices actually receive. Here is the math, with the assumptions visible.