Camping can be a lot of fun, but you don’t want to spend a long time outdoors without a phone. You could always use a solar charger to recharge your phone. These campfire chargers can also help you out:
PowerPot 5: lets you charge your devices while you cook. 20 minutes of charging gives you 90 minutes of talk time.
FlameStower Charger: a simple tool that charges small electronic devices with fire. Any fire source works. The FlameStower has a lightweight, compact, rugged design.
BioLite BaseCamp Stove: lets you cook your food and charge your gadgets. It has a 2200 mAh battery to store energy. Its smart LED dashboard also monitors power and battery level.
Fire Charger for Smartphones: you could always build your own fire charger. Joohansson has a published a guide that shows you how to do it.
BioLite CampStove: another cool BioLite charger that lets you charge your gadgets using a fire source. 20 minutes of charging gives you 60 minutes of talk time. CampStove weighs about 2 lbs.
Have you found better thermoelectric chargers for smartphones? Please share them here.