my phone battery drains extremely quickly. for example, today i had 80% and after about 30 mins of no use whatsoever, is gone down to 60%. didnt even check the time on the device. noticing this for a few weeks. when large apps are opened the charge drops from 80% to about 20% in less than 5mins and shuts down. on recharge becomes 100% in 10mins and drops down again. almost as if the battery has lost the capacity.
