This rechargeable lipo (Lithium Ion Polymer) Battery is a cylindrical 18650 cell that is typically used in everything from small flashlights to electric cars. The battery has a capacity of 2500mAh at 3.7V, the voltage can range from 4.2V when fully charged to 3.0V when completely discharged. This battery does not have built-in protection circuitry, so extra care must be taken to not overcharge or discharge the cell.
