4G on and Battery drained out in 5 min

[aznberry]

Hey Guys,

I have a Evo 4G and when I used 4G to watch movies on Netflix.
The battery just dies out within 5 mins.

This is the first time this happen and it happen yesterday.

Can some1 explain to me how this is possible..

Should I bring it in to Sprint.?.

Thanks,

sfdroid