People who are good at helping people figure this type of stuff out will need a lot (lot lot) more information than that to even begin to speculate. You dont mention any details at all, like (but not limited to), what connector (charger) you are using, what its plugged into, what the wiring is for the thing you are plugging into, what adapter you are using, if there are any other symptoms of power issues wherever you are charging (stuff like that).