Your Q-Sonic MP3 / MP4 / PMP player's battery no longer has a satisfactory battery life? Do you have to recharge it every 20 minutes? With our wide choice of Q-Sonic MP3 / MP4 / PMP drums you will have a battery with normal battery life. Battery replacement on Q-Sonic MP3 / MP4 / PMP players is usually simple, fast and economical. No need to replace your Q-Sonic MP3 player with a new one simply because of some battery problems, replace this battery and find an MP3 / MP4 / PMP player with a battery life as it was released. Our MP3 / MP4 / PMP player batteries are protected against short circuits, surges and overheating. Our Q-Sonic batteries are also CE and RoHS certified which gives you the same quality as the factory battery mounted on your Q-Sonic MP3 / MP4 / PMP player.