What is the strength of your chargers? I have multiple chargers in the house for different things, and they range on the input, from 0.4-0.8 amps and go as high as 3.4 amps on the output, depending on the type of cord connection. Currently looking into getting one that is a little bit stronger than the 0.8 amp one I have, as one of my tablets that I have, I lost the charger to it, due to abuse from family.