... screen Can quickly test the capacity of your battery. Compact size and light weight. Perfect companion ... read screenCan quickly test the capacity of your battery.Compact size and light weight.Test multiple sizes ... for travel.One movable arm to accommodate the battery.Two buttons on the side for testing ... MN1500, UM3-C, HP11, MN1400, SP11, LR14, UM2-D, HP2, MN1300, SP2, R20,UM1All kinds of button cellSize ...