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[Ironingboard]

I have a question I hope someone can give me some info on. I notice that when I switch on my rear demister my aircon goes slower, or when I switch on my hazard warning lights my inside lights start to flash as well, not really a problem, its not really that noticeable.

Anyway I took my car to Halfords who have a bosch battery tester and it reports that the battery is only 45% serviceable and should be replaced.

But the voltage given with my own volt meter reads 12.87 volts. Does my battery need replaced?

[PaulW]

Mine does exactly the same as yours, nothing to worry about tbh...  Usually just sign of a weak earth or soemething...

Just look how much they 'Charge' you for the new battery, then you will understand why they want to sell you one

[Lazydocker]

Battery testing and voltage at the battery are different things!

I personally would go to an independent garage and ask them to test the battery for you as I don't trust Halfrauds!

As for the other problems... They point to a bad earth, which may be cured if the battery was replaced and probably by accident

[edit]If I were a bit closer I'd test it for you as I've got a tester

Oh... And most garages will test batteries for free [/edit]

[Ironingboard]

Thanks for the offer  

Yeah I thought as much, car starts on the first crank. Think I need to clean my -ve connection to the battery. Any one know where the battery -ve is connected under the bonnet, is it a combination.... engine block and car frame?

[Black Knight]

I wouldn't set foot in Halfrauds myself.

Battery sounds fine to me.

[Lazydocker]

Thanks for the offer  

Yeah I thought as much, car starts on the first crank. Think I need to clean my -ve connection to the battery. Any one know where the battery -ve is connected under the bonnet, is it a combination.... engine block and car frame?

All over the place unfortunately... Just follow them

[PaulW]

shyboy on here did run an extra earth strap from the battery to the engine block, which he says did improve things to a certain degree

[Kevin Wood]

Some info on checking the state of your battery properly here: http://www.omegaowners.com/forum/YaBB.pl?num=1225724099

I wouldn't trust Halfrauds. You can't test a battery by just chucking a voltmeter on it. Follow the steps in the link above for a better procedure to follow. It does sound more like a poor conenction somewhere in this case.

Last time I bought a battery at Halfrauds it was after driving there following a jump start and total battery failure . Decided to use their "fit it free" service as I didn't have any tools.

My car was declared a "difficult fit" (FFS- how can fitting a battery be difficult).

Needless to say it turned out to be a "Borrow Halfrauds' tools to fit your own battery while the breakless muppet stands and has a fag" service. Still, it got me back on the road.

Kevin

[CaptainZok]

Some info on checking the state of your battery properly here: http://www.omegaowners.com/forum/YaBB.pl?num=1225724099

I wouldn't trust Halfrauds. You can't test a battery by just chucking a voltmeter on it. Follow the steps in the link above for a better procedure to follow. It does sound more like a poor conenction somewhere in this case.

Last time I bought a battery at Halfrauds it was after driving there following a jump start and total battery failure . Decided to use their "fit it free" service as I didn't have any tools.

My car was declared a "difficult fit" (FFS- how can fitting a battery be difficult).

Needless to say it turned out to be a "Borrow Halfrauds' tools to fit your own battery while the breakless muppet stands and has a fag" service. Still, it got me back on the road.

Kevin

I suppose when the said muppet's lifetime achievements are tying his own shoelaces and going to the toilet on his own, anything else can be challenging.

[TheBoy]

Some info on checking the state of your battery properly here: http://www.omegaowners.com/forum/YaBB.pl?num=1225724099

I wouldn't trust Halfrauds. You can't test a battery by just chucking a voltmeter on it. Follow the steps in the link above for a better procedure to follow. It does sound more like a poor conenction somewhere in this case.

Last time I bought a battery at Halfrauds it was after driving there following a jump start and total battery failure . Decided to use their "fit it free" service as I didn't have any tools.

My car was declared a "difficult fit" (FFS- how can fitting a battery be difficult).

Needless to say it turned out to be a "Borrow Halfrauds' tools to fit your own battery while the breakless muppet stands and has a fag" service. Still, it got me back on the road.

Kevin

I'll change your battery, but I'll have to take the car for a spin afterwards, to ensure it all works properly for total customer satisfaction  8-)

[stuyg]

clean as many earth points as you can find !
had this with mine spent a couple of hours cleaning all sorted  
as far as i know should be around 13.8 v at the battery at idle with nothing on hth