Quote:
Originally Posted by kiwi_bloke_nz
If you measure voltage across the battery poles while the engine isn't running a fully charged / good battery should put out over 13 volts.
When the engine is started, if it is charging the voltage should rise and maintain at least 13.5 volts.
So yes, if it is only putting out 12.3 volts something is wrong. Even if the bushes on the voltage regulator are good, it could still be faulty.
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Yeah that sounds about right.
He tested from the battery terminals after I started the car (Or rather, jump started) I normally wouldn't trust autozone with this car but even they shouldn't be able to screw up while replacing an alternator. I would do it myself but time is a factor (Unless my friend is willing to hold off till Saturday when I planned to replace the rear glass anyways)
Amazing that a difference of 1.2 volts would have such an effect (I really need to learn more about electricity
)
EDIT: And then suddenly I asked myself "Wait a second....does autozone even do repairs?" Looks like i'll be doing the swap on Saturday. Hopefully it goes more straightforward then that starter replacement went....)