cgambino1018 21 #1 Posted January 19, 2020 Found a Toro WH battery guage in the garage. I noticed they go for a few bucks.. so I would like to test it before putting it up for sale. I used my trickle charger to try to get the needle to move but got nothing to happen. should i be using a battery to test? which screw should the power (+) be connected to? which screw should the ground (-) be connected to? All help is appreciated as obviously i dont know what i am doing Cheers Chris Share this post Link to post Share on other sites
pfrederi 17,116 #2 Posted January 19, 2020 Just wire it to a battery. The trickle charger may not put out any charge if it doesn't sense a battery 3 Share this post Link to post Share on other sites
R Scheer 499 #3 Posted January 19, 2020 And the G terminal should go to "-", and the I terminal to "+". Just connect to a battery, a lot of the new chargers need to see a battery to work. Also would be a good idea to use a fused lead. Share this post Link to post Share on other sites
ebinmaine 62,936 #4 Posted January 19, 2020 22 minutes ago, pfrederi said: Just wire it to a battery. The trickle charger may not put out any charge if it doesn't sense a battery Most modern chargers are "smart" and won't send out unless they sense voltage in first. Safety stuff. Get another voltmeter or DVOM to use as a baseline. G to - or ground clamp. I to + Check readings.... 1 Share this post Link to post Share on other sites
squonk 38,842 #5 Posted January 19, 2020 43 minutes ago, cgambino1018 said: Found a Toro WH battery guage in the garage. I noticed they go for a few bucks.. so I would like to test it before putting it up for sale. I used my trickle charger to try to get the needle to move but got nothing to happen. should i be using a battery to test? which screw should the power (+) be connected to? which screw should the ground (-) be connected to? All help is appreciated as obviously i dont know what i am doing Cheers Chris That center post is just for the light bulb if it was present.. Remove that red plastic cap on that stud and use a battery. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,478 #6 Posted January 19, 2020 Click on the picture. The "S" had me stumped. Garry Share this post Link to post Share on other sites
cleat 4,936 #7 Posted January 20, 2020 Center post is ground, I is for ignition or + power, S would be for the sensor if it were a fuel gauge, tach etc. Share this post Link to post Share on other sites
cgambino1018 21 #8 Posted January 20, 2020 no response when connected to a battery.. any one want to buy a broken power gauge Share this post Link to post Share on other sites
ebinmaine 62,936 #9 Posted January 20, 2020 4 minutes ago, cgambino1018 said: no response when connected to a battery.. any one want to buy a broken power gauge Ahh well..... it's about the right size and shape for either a ping pong or tennis ball but I don't think it'll bounce right. Share this post Link to post Share on other sites
