Super part'm super happy I bought the smallest with the 5200 mAh it had been 4 times in invites use the part ifs fully my iphone 5s 2 times + Galaxy S2 once and there is still some energy in it honestly for that price would have been enough to me when 1 times so vollädt my opinion to complain after niks processed well no noise no heat generation power supply, each home which also is an advantage and who has an Android gets a charging cable Mini USB already, Apple must stop their own cable dranmachen! for the price compact design - slam