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Old 11th November 2021, 09:16   #10
macafee2
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Rover 75 Saloon & Tourer

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Quote:
Originally Posted by patrolman pete View Post
An old way that the AA used to test batteries was to charge by running the engine for 5 mins , then disable the engine by pulling a fuse so that the car would crank but not start. Crank the engine for 15 seconds and listen to the cranking speed , and if it starts to drop , the battery is unserviceable . That is a live drop test and is pretty conclusive.
I can try that. What fuse to remove, fuel pump?
15 seconds continuous cranking seems a long time, I just timed it my goodness that is a lot of cranking

macafee2
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