Its will flash red and green continuously.
Infapower C014 Battery Charger 4 Channel AA AAA Ni-MH with USB Cable
1 Pcs Universal Battery Tester, Battery Checker, BatteryTester Multi Size BatteryChecker, BatteryTester Universal BatteryChecker for AA AAA C D 9V 1.5V Button Cell Batteries (Pointer Type)
Universal Battery Tester, Digital Battery Checker for AAA AA C D 9V and 1.5V Button Cell Batteries, Universal Household Battery Checker, No Batteries Required
BT-168 AA/AAA/C/D/9V/1.5V Universal Button Cell Battery Colour Coded Meter Indicate Volt Tester Checker BT168,Universal Battery Tester Volt Checker with Accurate digital Screen,Battery Tester Checker
Universal Battery Level Tester, No Batteries Required, Tests AAA, AA, C, D, 9V and 1.5V Button Cell Batteries
MERCURY | Universal Battery Tester Volt Checker with Accurate digital Screen | Test AA, AAA, C, D and 9V PP3 Batteries & Button Cells
