More details click here Polymer lithium battery, 3.7 V. It can be customized wholesale. CE, FCC, ROHS, MSDS quality certification.
Model Number: 402030
Replacement Battery: No
Set Type: Batteries Only
Battery Number: 1
Type: Li-polymer
Brand Name: EASTFIRE
Size: 4mm*20mm*30mm
Nominal Capacity: 200mAh
USE: MP3 / MP4 Player