HTC Incredible :: Warmer Battery With Froyo?

Noticed last night that my battery temperature hit 40.2 degrees C...it's never been that high. it may be attributed to the fact that I was using it all night, but it only started getting warm right before i went to bed. i laid it down and put it to sleep, figuring it would cool off, and eventually it began to. So then, i started to charge it. at the early charging cycle, it dropped down to normal around 32 degrees while charging...then an hour later i wake up and check it, and it's back up to 40 something! i was like wtf! the rest of the morning it seemed to charge cool, but what could be making the battery so hot so randomly? i've never had it hit that high before and i don't want it to melt or anything lol

also, noticed charging takes MUCH longer now. started charging around 4am, woke up at 8 and it still wasn't at 100. usually used to take only 2 hours, now was taking 4. so when it hit 100, i took it off the charger to do my bump charge test....let it idle for 3 hours, and when i went back to it, it was at 90%, meaning i had to bump charge