Thread: Battery charge voltage info poll.

And here are the values with the auxiliary battery connected - identical conditions and same trip. (Cranking battery in red, aux in blue,)

1 ) What is the voltage at the cranking battery’s terminals. 12.30V, 12.57

2 ) Type of vehicle. 94 Disco Tdi

3 ) What make and type of battery ( a model number will do ) SuperCharge Gold 670cca (MF80D26R), Century 450cca (57)

4 ) When was the last time the vehicle was driven. 36hrs prior

5 ) How long was the last drive 25km

6 ) Is this your day to day drive or a once a week vehicle Daily driver

7 ) Alternator size 100A

8 ) Is this your tow vehicle or other. It's my tow vehicle, tractor, adventure bus and anything else you can think of.

9 ) What is the voltage at the cranking battery when you first start your vehicle ( cold start ) 13.9V

10 ) With the motor still running, what is the voltage at your cranking battery after a 30 minute drive. 14.09V, 14.09V (at idle)

A thousand thanks for this thread.
Thought I was going mad with the charging voltage OP of my Discovery 2 V8, which seemed low at 13.4V max, but also looks a characteristic of other Discovery 2 listed here.
I will post my results in a few days, for others reference, but I am currently topping them up using the charger, so will wait till I have used the vehicle a few times on alternator only.