_Chris Posted September 28, 2020 Share Posted September 28, 2020 Back in the "old days" I remember garages using instruments with fearsome looking prongs to measure the condition of a battery. Nowadays, they seem to use digital instruments. But, other than voltage, what do they measure? Link to comment Share on other sites More sharing options...
Derek Uzzell Posted September 28, 2020 Share Posted September 28, 2020 You might like to wade through this recent forum thread https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/Batteries-again-/56070/ or have a look at this document https://www.batterymasters.co.uk/media/catalog/product/pdf/YUAMDX617P-TECH.pdf Link to comment Share on other sites More sharing options...
colin Posted September 28, 2020 Share Posted September 28, 2020 Modern testers put an AC current through the battery to test it's condition, quite how that works I don't know. Link to comment Share on other sites More sharing options...
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