Starting Battery

[Jed Stone]

Think one of my batterys has given up the ghost , showing 12.2v but wont turn the starter, any ideas or is it a new battery?

if so recommendations please.

Edited January 2, 2021 by Jed Stone

[Andy135]

12.2v should be enough to turn the starter. Check your connections.

[suzook12]

Is the voltage collapsing when you hit the key/button?

 

[Gordmac]

I doubt 12.2v would have started my old D6 Fords! As above check it when trying to start. Always worth a clean of +and- connections. Have you tried charging the battery?

[Geoff]

At 12.2 v you  may well have a week cell. Does the engine try to turn over or crank freely, but fails to start. My car really needs a new battery - if I leave it a week I have jump start - if starting every day, no problems. If the engine only turns over very slowly, the most likely cause is battery or bad battery/earth connections if the battery is good. Geoff.

[Jed Stone]

1 hour ago, JonC said:

Before you put your new battery on check the voltage being put out by your alternator, if it’s low you will kill the new battery as well. 

Thanks