La Crosse 911-65557-INT Portable Digital Battery Tester,Black

Test rechargeable and alkaline batteries. Works for all: AAA, AA, C, D, N, 9V batteries and Lithium Ion button cell. Simple Operation in 3 easy steps: 1) Select Voltage range (1.5V, 1.2V, or 3.0V depending on battery type used, 2) Pull orange tray outward and insert one battery into the tester correct direction of polarity, 3) Slide tray closed for positive connection and LED will display voltage and strength levels. Remove battery when test is complete.. Multiple types: Select 1.5V for alkaline AA, AAA, C, D, & N batteries; Select 1.2V for rechargeable AA, AAA, C, D & N batteries; Select 3V for lithium button cell battery. Touch contacts on left side of tester for 9V battery