1.5V and 9V Battery Tester Circuit Diagram Circuit design of 1.5v and 9v battery tester Components List: R1 = 18K Ohm R2 = 240 Ohm R3 = 8.2K Ohm R4 = 3K Ohm R5 = 10 Ohm M1 = Panel Meter (Anyone will work) Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)