ANENG BT189 Button Cell Battery Tester 9V N D C AA AAA Universal Household LCD Display Battery Tester Power Bank Detectors Tools

No power supply required, just use and test. Suitable for various styles of batteries. Rapid and Accurate detection. High-definition LCD digital display. Ultra-small size and easy to carry, smaller size and lighter. Measurable types: N type, No. 1, No. 2, No. 5, 14500, No. 7, 1044016340, button battery, 9V battery. Made from ABS insulated Plastic.