So get this -- I have a brand new Coolpad. Bought it, turned it on, and gave it a full charge (or so I thought). I ran the battery down to about 40%. Then the phone shuts itself off. I try to restart, but it won't go - I get a battery screen saying it's down to 1%. So I plug it back in, and wait until it's up to 13% before turning it on. Android OS kicks in and suddenly, the lock screen tells me "charging - 42%". So according to Android, 40% means outright dead, and 100% means half-charged. What the heck?!?!