Richardbenz

If a battery cannot hold a charge, then the battery is faulty

The alternator charges the battery, but has nothing to do with the battery HOLDING its charge.

The ability to hold a charge is a function of the battery, and only the battery.

If you think the battery is not being charged fully, then you can suspect the alternator and/or battery

But for a battery not HOLDING a charge, it can only be a faulty battery

Hi again, te mechanic tested the battery with his tester under load and it read about 13.45, he said that it should read at least 14, does that indicate a battery that needs replacement, he had charged it overnight previous.

Hi

My 1989 735i battery is not quite holding its charge and I believe it is the alternator. Does anyone out there have one lying about somewhere or can suggest what is the best thing to do in getting this issue worked out. Thanx

Thank you for that, will need to look for a battery in that case. Regards

Hi

My 1989 735i battery is not quite holding its charge and I believe it is the alternator. Does anyone out there have one lying about somewhere or can suggest what is the best thing to do in getting this issue worked out. Thanx