Li-ion polymer battery

Model：SP121829
Capacity：Typical (520mAh) Minimum (500mAh) Energy (1.85Wh)
Nominal Voltage：3.7V
Thickness：Max12.1mm
Width：Max18.2mm
Length：Max30.0mm
This size will be swelling when high temperature storage or operation in high temperature.
There shall be no such defect as scratch, crack, rust, leakage, which may affect Commercial value of battery.