My InFocus M2 is very choosy with chargers. It basically charges only with chargers that ships along with phone when we buy them. It may be of any brand like Samsung, iball, Moto G etc. However, it does not charges with chargers we buy separately from market, it simply shows charging for a second or so and stops charging. Other phones or tablets though, can very well charge with them without any problem. Should I be worried? Or is it that InFocus phone software are taking extra care of the battery.