P38A 12.5 volts and not enough to start engine.

Radar1946 said:

I fitted new battery cables and bought a new battery. I left it for three days and it still starts first time. Can't thank you all enough.

Click to expand...

You still need to check that the alternator is producing at least 14.4 volts at 2K rpm after starting.

Datatek said:

You still need to check that the alternator is producing at least 14.4 volts at 2K rpm after starting.

Click to expand...

...with all full beam, A/C & heater heated seats etc. etc. on too?

DanClarke said:

...with all full beam, A/C & heater heated seats etc. etc. on too?

Click to expand...

If the alternator is OK the voltage should stay the same, so worth checking with a heavy load. The voltage will fold back to below 14 volts as the state of charge of the battery nears full charge.

Cheers I will check.. Just like to say an extra thanks to Grr for taking time to write all the info in plain english, must have taken a while to write.