Daughter's BF has a new evo. Sprint mailed it out last week. It literally dies in 4 hours of a full charge. so obviously he's charging it multiple times daily. This has happened from day 1. Hell, I traded his 1500 stock battery with my inc's 1750 sedio and it's only lasting a couple minutes longer. His stock 1500 is running in my incredible just fine. I'm at 90% 3 hours later... So, chances are, this is a hardware issue? Will sprint exchange it for a new one at the store? Or will he have to go through the mail? Also, will the exchange be a new one? PS: 3g area, all 4g is off. and all syncs are off w' exception of facebook and gmail. THANKS!