theMGZS.co.uk :: MG ZS forum - View Single Post - What voltage reading should i get when car is running?

rbull51 · 06-01-12, 04:10 PM

I tested my voltage and to start with i got a reading of about 14.0 / 14.1 but with everything switched on the voltage dropped to 13.0 volts. This was whilst the car was on tick over. Does this sound right or should it recover to about 14.0 v? (heated screen, fans on full, a/c, lights dipped/beam etc)

06-01-12, 04:10 PM	#5
rbull51 Member Join Date: Oct 2007 Location: Birmingham Posts: 445	I tested my voltage and to start with i got a reading of about 14.0 / 14.1 but with everything switched on the voltage dropped to 13.0 volts. This was whilst the car was on tick over. Does this sound right or should it recover to about 14.0 v? (heated screen, fans on full, a/c, lights dipped/beam etc)