anthonym Posted November 14, 2019 Share Posted November 14, 2019 3 can be tested by using another charger. And you have one: your alternator is giving 13.8 V. So I'd charge the battery from that (or another charger). Then see if the voltage drop on cranking is better.I second that. It's 3 the "go for a run" method and often works - then it's a case of how much life is left in it when stressed (asked for mutiple starts) which in local use may not matter - have we asked the age of this battery? Link to comment Share on other sites More sharing options...
anthonym Posted November 14, 2019 Share Posted November 14, 2019 3 can be tested by using another charger. And you have one: your alternator is giving 13.8 V. So I'd charge the battery from that (or another charger). Then see if the voltage drop on cranking is better.I second that. It's 3 the "go for a run" method and often works - then it's a case of how much life is left in it when stressed (asked for mutiple starts) which in local use may not matter - have we asked the age of this battery? Link to comment Share on other sites More sharing options...
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