Don't for Which Batteries to Keep and Which to throw Away, Place your battery between the two points of the battery tester, and the easy-to-read display tell you instantly whether you have a dud, or if you can out another few minutes of battery life.
Easy to read, colour coded meter indicates power level
Checks power level of all 1.5V & 9V batteries
Universal Button Battery Checker Tester AA AAA C D 9V
Tests 1.5V miniature cells
Colour: Black&red
Height: 1
Length: 4
Width: 0
Weight :0