Hi, I recently bought a reconditioned Nintendo DSL, hadn't ever been used or whatsoever. I also bought a DSTT card and it works perfectly. The thing is, if I start playing when fully charged, the battery indicator will turn red after approximately 40 minutes - 1 hour. Does this have anything to do with the DSTT or should I have the battery replaced? When I bought the DSL the seller had charged the battery a little just to show me that the console was working and I didn't fully charge the battery when I got home. This might be the other reason. Or maybe it's just a bad stock battery. What do you guys think?