Digital battery tester, universal battery tester, suitable for AA, AAA, C, D, PP3, 9V, 1.5V batteries

Compact and portable: Small AA battery tester (BT-168D), small, lightweight, and easy to carry. Tests various battery types: The battery tester works with standard household batteries and rechargeable batteries. AA, AAA, C, D, 1.5V, 9V, button cell tester. Battery-free operation: Easy-to-read digital display of the charge level. No batteries required. It is powered by the battery being tested. Easy to read: The portable device is designed for easy reading: the battery voltage is displayed on the LCD screen. Save on batteries: You can easily test the battery voltage to determine if the battery capacity is low or high, preventing us from wasting perfectly good batteries by throwing them away.