Vauxhall Zafira 1.6 petrol 80k
4 days of it being sat electrics come on but car clicks once and nothing happens on key turn.
battery reading 9.5v charged battery fully and still the same issue.
have cleaned the earths under the battery tray and on the side of near UEC.
stripped UEC off and electrical contact cleaned that and is in the airing cupboard now.
next I’m going to follow the red wire from battery to starter and clean that up.
Got it all back together and it fired up.
Checked the voltage this morning and showing as 12.15v
So I’m guessing either my battery is bad or a drain ?
Or could an alternator cause this drop.
Is a drop from 12.4v to 12.1v normal freezing icy conditions ?
maybe time to buy my battery a hat and scarf.
I went back through receipts looks like I bought the battery Feb 2018 so relatively newish I thought it was older for some reason.
Update: battery test done and the results drum roll:
The print out says to replace.
His machine reads
12.58v
measured 370
rating 540
so the CCA is down 170
the guy said even if the battery says fully charged in the 30 mins it took. He said take it inside overnight and leave it. But the lower CCA won’t change ?
he said do a draw test to see if anything is draining it and it should be sub 50ma after 30 mins of leaving it. If it’s above the hunt the issue.
He said the alternator is chucking out the Volts of over 14v.
so I guess I should first check for a drain or just replace it ?
Eurocarparts said they would replace if they tested it and it had a dead cell.
if the CCA rating is down its a grey area
Sorry for the long winded Post
advice welcomed
4 days of it being sat electrics come on but car clicks once and nothing happens on key turn.
battery reading 9.5v charged battery fully and still the same issue.
have cleaned the earths under the battery tray and on the side of near UEC.
stripped UEC off and electrical contact cleaned that and is in the airing cupboard now.
next I’m going to follow the red wire from battery to starter and clean that up.
Got it all back together and it fired up.
Checked the voltage this morning and showing as 12.15v
So I’m guessing either my battery is bad or a drain ?
Or could an alternator cause this drop.
Is a drop from 12.4v to 12.1v normal freezing icy conditions ?
maybe time to buy my battery a hat and scarf.
I went back through receipts looks like I bought the battery Feb 2018 so relatively newish I thought it was older for some reason.
Update: battery test done and the results drum roll:
The print out says to replace.
His machine reads
12.58v
measured 370
rating 540
so the CCA is down 170
the guy said even if the battery says fully charged in the 30 mins it took. He said take it inside overnight and leave it. But the lower CCA won’t change ?
he said do a draw test to see if anything is draining it and it should be sub 50ma after 30 mins of leaving it. If it’s above the hunt the issue.
He said the alternator is chucking out the Volts of over 14v.
so I guess I should first check for a drain or just replace it ?
Eurocarparts said they would replace if they tested it and it had a dead cell.
if the CCA rating is down its a grey area
Sorry for the long winded Post
advice welcomed
