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Hate to break it to you champ, but chances are that you haven't been charging your phone in the proper manner. Some phones require just 0.5 Amps, others require 2 Amps, plus the whole range in between...Luckily there's good news: with the Goal Zero Smart USB Adapter you don't have to worry about curating every outlet to your exact needs because it automatically communicates between the power source and your phone to adjust to the proper amperage and maximize charging. Try the Goal Zero Smart USB Adapter and see the difference for yourself.
USB Female
USB Male