ac/dc adapter tester rfnt4 1. Test resistance 2. ... of rechangeable batteries ,like power bank ,laptop batteries,DV,DC batteries,AAA batteries• Color: WhiteDescription:testerbattery detectorlaptop battery testerbattery ... : 333 g• Adapter Input: AC 100~240V Output: DC 19V 4.74A• Display way: segment LCD with white backlight ... loadConnectors,use these for different battery models ac/dc adapter tester rfnt4