high quality polymer battery,it isHigher capacity.Durability and stability.Long cycle life and use longer time.Excellent discharge perfomance.longer stronge time.low weight and high energy. Key Specifications of Li-Polymer battery 032020 1,Nominal voltage: 3.7V 2,Nominal capacity: 100mAH. 3,Charging voltage: 4.2V 4,Discharged voltage: 2.4V 5,Life cycle: 500 times 6,PCB and battery pack are also available 7,Used for portable printer 8Dimensions: 3.5 x 40 x 71mm