On Kilimanjaro, there are no power outlets to charge your gadgets. Spare batteries or a portable power station/battery bank may be useful. However, batteries drain rapidly in the cold, and after a few nights on the mountain, you may discover them empty. Another alternative is to utilize a solar charger, which generates electricity using daylight energy. One hour of sunlight may be enough to fully charge your phone or camera on Kilimanjaro with contemporary gadgets.