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Q&A How much margin due to charging inefficiency should I add when calculating the size of batteries needed for a trip?

In order to charge my electrical equipment while backpacking (GPS, camera for timelapses, phone, etc) I bring along a large battery. To calculate the size of the battery you can figure out how many...

1 answer  ·  posted 5y ago by Charlie Brumbaugh‭  ·  last activity 5y ago by System‭

Question backpacking electronic-gear