got A COUPLE GIFT CARDS FOR AMAZON,and want to purchase a hydrometer. I found three that looked good but don't know what all to look for and keep the price down. otc 4619 professional battery Hydro...
I know exactly what a hydro tells you. But the point being, what good is it except it tells you the battery is junk? I will do w/ a volt meter anything you can do w/ a hydro ! And I will do w/ a load tester that you cannot do w/ a hydro. And I will test an AGM, which you cannot do w/ a hydro. You have never seen all the cells perfect on a hydro, but yet fail a load test bigtime ?? I have, many many times.
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