Well recently, its been getting REALLY hot here in New York. And with it, my battery temperature has been idling in the 30-35 range, higher in my pocket, and therefore its been at 40 constantly. I've done nothing today with it besides maybe 15 minutes of music via headphones total, and I'm getting like 17 hour battery life. I used to get this while spamming apps, playing around, browsing, etc. Does temperature increase battery use or is it time to switch ROMs (Petes 0.8 has been a battery drain on me).