... for easy voltage reading, Digital Battery Tester 2 different scales for 1.5V and 9V batteries Digital Battery Tester LCD display for easy voltage ... full level, yellow for low level, red for flat levelFor D, C, AA, AAA and 9V batteries: mono (L)R20 ... /D, (L)R14/C, (L)R6/Aa, (L)R03/AAA, 6( ...