DescriptionDon\'t for Which Batteries to Keep and Which to throw Away. This is a battery capacity tester. The voltage is 1.5v disposable and rechargeable batteries, including:AA, AAA, or AG series button batteries, etc.Feature- Color: As shown- Material: Plastic and metal- Size: 11x5.9x2.5cm- Universal Button Battery Checker Tester AA AAA C D 9V- Made of materials, durable and practical.- Place your battery between the two points of the battery tester,and the easy-to-read display will tell you instantly whether you have a dud, or if you can eke out another few minutes of battery life.- Checks power level of all 1.5V & 9V batteries.- Easy to read, colour coded meter indicates power level.