I experienced similar problems that others have described. The charger will stay on charge all day long but give only a few minutes worth of extra power to the NDS when switched to play mode. It also gets noticeably warm, almost hot, in that center battery area while in play mode.I called NYKO for support and was informed that the item has been discontinued. There is no other similar product offered by the company for the NDS. I was offered a measure of credit towards any other product on their web site but the only items for NDS amounted to a light-up stylus and a camouflage carrying case with a matching car charger. Hardly a replacement for a charger grip that would have been amazing for that upcoming 11-hour overseas flight.So I'm out ten bucks because the retailer has no more for exchange. I can either hack the device to try to fix the battery or take a chance wasting another ten bucks for a possible working device. Now where's that tri-blade screwdriver?