Color:green Material:PCB Size:41 x 55 x 3.4mm Package Contents: 2 * Battery Protection Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Enhanced version:Suitable for electric drills with a starting current of 120A or less and a power of 260W or less. Scope of application:Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V(including 18650,26650,polymer lithium batteries,no size limit). Charging voltage:12.6V-13.6V Continuous discharge current(upper limit):60A(If the heat dissipation environment is not good,please reduce the load current)