You can get a pretty good view of a battery's condition doing a cranking voltage test on a cold engine using a cheap eBay Chinese "ELM327" Bluetooth or USB OBD2 adaptor and Torque Pro, OBD Car Doctor Pro or similar graphing OBD2 app.
" We're trying to plug a hole in the universe, what are you doing ?. "
(Walter Bishop Fringe TV show)
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Last edit: 8 years 6 months ago by Andy.MacFadyen.