battery drain

[Android Question]

my SGH I997 after being fully charged at 3/4 the phone shuts off when it is turned back on immediately it is completely dead what i have noticed is if i leave it off a bit after turning it back on it goes back to normal and not dead why.

 

[Rukbat]

I suspect a defective battery. Find a really good store run by your carrier and see if their tech department knows what a "dendritic short" is, and if they'll test for it and do something for you. (It's a defect caused during manufacture of the battery, so they should replace it under warranty, but a really good aftermarket battery is about $10, so I wouldn't worry about it too much.)