Yitzchok 4 #1 Posted 3 hours ago Hi, when its off and i test the battery its like 13v when its running and i test the voltage at the battery the numbers are jumping way up (up and down) (the meter on it is broken so i was using a multimeter but it is a cheap one so idk) it's going all the way up to like 45v what should i do? 1 Share this post Link to post Share on other sites
ineedanother 2,287 #2 Posted 3 hours ago Are you just randomly testing something or is there an issue or problem that you are trying to diagnose? 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 12,224 #3 Posted 2 hours ago Some digital multimeters will pick up interference with the engine running so not any help with diagnosis. Most older analog meters with a needle do much better. Perhaps you could borrow one or replace the original with an automotive style the same size. They are not that expensive. Share this post Link to post Share on other sites