Battery Slowly Draining Help

[318Sebring]

Hello
My battery is slowly draining on my 72 318 Sebring.
The battery is 9 months old.
When fully charged  ( Charged with a  Battery charger ) it reads  12.4 V  according to my multimeter Tested at the poles.
When the engine in running ( Idle ) it reads 12.2 V at the poles and 12.1 V at the connectors
After driving approx 100 miles the battery reads 12.2 V and 12.1 V at idle. again 12.1 V at the connectors.
Eventually the car is hard to start. You know what happens next. 

Altinator
Any suggestions before I replace the altinator ?

Thanks in advance

Fred..

[Strawdawg]

Well, the battery is obviously not being charged by the alternator so you have to determine if the alternator is bad, or the regulator is bad.


You might read this thread if you have not   http://www.cuda-challenger.com/cc/index.php?topic=77684.0

[72rtchallenger]

Well, the battery is obviously not being charged by the alternator so you have to determine if the alternator is bad, or the regulator is bad.


You might read this thread if you have not   http://www.cuda-challenger.com/cc/index.php?topic=77684.0

  it should be 13 to 14 v when idling ,,check to see if your getting better voltage at the alternator post

[Chryco Psycho]

you can have the Alternator tested , the regulator is on the firewall has a triangular plug with two w ires running to it the reg is only $15 to replace

[318Sebring]

I just had the Alternator tested .
Its going South.
As per Chryco Psycho, for $ 15.00 with will also replace my 40 year old regulator

Thanks for the help.

Fred..

[ShelbyDogg]

I just had the Alternator tested .
Its going South.
As per Chryco Psycho, for $ 15.00 with will also replace my 40 year old regulator

Thanks for the help.

Fred..

Save that 40 year old regulator. It might be better than the new one you're buying. Always keep a spare in the glove compartment along with a balast resistor.