Simmo
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I'm an OAP !
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Battery and charging issue
« on: Mar 5th, 2013, 12:54pm » |
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An excellent answer to a battery/charging issue provided by Mike H on 5/3/13.
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Turned out thick wire from alternator B+ to battery was bad, intermittent contact. Alt was swapped as well but original probably still OK, but as I'd got the spare (fr. Spikies), might as well put it on.
Symptoms were -
Battery discharged after a week of (very) occasional use, always needs charger to recover.
Holds charge if car not used (is not a current drain).
Won't charge when engine running, or might only if it feels like it, depends. Volts may be random between 11.? to 13.?.
Total electrical failure on a longer journey, but recovers after a few seconds. Had this happen twice, 1st time 2 years ago! I can now see that this was a case of running on batt only until the Voltage difference was so big that it forced the bad alternator wire to conduct, then it would work again.
Forgot to mention, dash warning light always worked normally, so you'd think it's not a charging problem, yes? lol
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