Frank

Building WattPair (wattpair.com)

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Building WattPair (wattpair.com) — an off-grid power compatibility engine. One rule: never print a number I can't source.

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3d ago

WattPair — a power-station calculator that refuses to print numbers it can't source

Built this over six months of nights and weekends: wattpair.com answers "will this battery power station actually run my fridge / CPAP / air conditioner - and for how long."

The twist: I have no lab, so the engine only uses manufacturer-published numbers, and when a number doesn't exist it says so instead of guessing. 23 of my 29 station entries have no published usable capacity - those pages print no runtime at all, with the reason.