Feature 1.Elected premium grade materials. 2.Low resistance, high reliability, good consistency. 3.Lightweight and small size, long battery life, high specific power. 4.Great value without the loss of performance. Notice 1.Only if the voltage, dimension and the plug match, then it will fit. 2.Check the battery condition carefully before using or charging. 3.Don't overcharge more than 4.2V and don't over discharge below 3.2V, never leave battery unattended when charging. 4.If the new battery won't hold a full charge or loss the charge very quickly in short time, please use Balance Charger to charge and recycle several times first.