This may have started before this, but around Tuesday, I noticed my battery life diminished significantly than before using the R4. I was playing Nervous Breakdown (awesome game, by the way) and it seemed to only last 4 or so hours (I never timed it) on the 3rd brightest setting. What can cause this drastic reduction in battery capacity? I've been using this DS Lite since June of this year so it's fairly new. Does turning it on and off frequently cause the battery to drain faster? Does frequently changing games do this? Maybe it's just psychological but it seems really short now much like my old DS is like now.