Universal battery tester, pointer battery tester for AA AAA CD 9V 1.5V button batteries and small electrical devices

Versatile: Tests various types of household batteries, such as AA, AAA, C, D, 1.5V, 9V, and 1.5V button cell batteries. No batteries required: Activated by the battery being tested, it can operate without batteries. Simple yet effective: Compact, lightweight, portable, and powerful, this battery tester is essential for those who frequently use regular or rechargeable batteries. Easy to use: Simply identify the battery's condition using the analog needle: "Good" (green), "Low" (yellow), and "Replace/Charge" (red). Note: 1. You can only test the battery voltage to determine if its capacity is high or low. It cannot directly and accurately detect the battery's capacity. 2. Remember: The battery tester is activated by the battery being tested. Please keep the test duration to a minimum to avoid unnecessary battery drain.