I bought this samsung galaxy tab a7 in the month of November last year it was worki.g fine for some time but now it has started giving me drainage issues like 5% in less then 5 mins also when the battery percentage shows 100% and after that if I remo...

I bought this samsung galaxy tab a7 in the month of November last year it was worki.g fine for some time but now it has started giving me drainage issues like 5% in less then 5 mins also when the battery percentage shows 100% and after that if I remo...