trax · Jan 23, 2013

clear this up

gil said:
So new battery on, car starts, happy days. Next morning car doesn't start again!!

You drove it around all day, running lights, radio and all sorts of leccy stuff?

gil said:
The multi meter is reading 14.05 volts with the engine running of the battery and off the back of the alternator (with out lights, radio ect on)

The battery is reading 12.66 volts with the engine off.

you tested the voltage from the rear of the alt and it gave 14v at idle?

you tested the voltage from the battery terms 14v at idle?

Engine off, new battery is 12.66 volts?

gil · Jan 23, 2013

Yeh that's right

trax · Jan 23, 2013

So, unless i'm being a big thicky.. then why

gil said:
Well changed the starter motor took it for a 20mile drive, still no charge getting taken up by the battery

If it's getting 14v at the battery terms when the engine is on.. then it's being charged from the alt.

gil · Jan 23, 2013

But it doesn't seam to be holding that charge

***CrAiG*** · Jan 23, 2013

It doesn't seem to be accepting that charge... Was it a brand new good quality battery?

gil · Jan 23, 2013

Yep 2 brand new good quality battery's now. Never had a problem with these type before

trax · Jan 23, 2013

gil said:
But it doesn't seam to be holding that charge

Why are you thinking that? It does take a lil while to charge a flat battery.. anyway a simple test to see if it's the battery or something draining it is to discon the battery at night.

Engine off, discon battery, wait a bit for the charge to settle, measure. get up in the morning.. measure.

gil · Jan 23, 2013

trax said:
Why are you thinking that? It does take a lil while to charge a flat battery.. anyway a simple test to see if it's the battery or something draining it is to discon the battery at night.

Engine off, discon battery, wait a bit for the charge to settle, measure. get up in the morning.. measure.

Done that already I have a fully charged battery that I have been using to start and then putting my normal brand new battery back on, it's not the batters

trax · Jan 23, 2013

gil said:
Sorry, I should of said I can't jump it, I can only get it started by putting a fresh battery on it

I don't understand this at all. I don't see why it should make a difference. + to +, donor neg pole to engine block.

I'm guessing that it hasn't anything to do with that and maybe there is a dodgy connection to the starter.

jamesmartin · Jan 23, 2013

gil said:
Right all fuses pulled and only a slight drop in vaults. How ever I have just found two things dodgy

View attachment 40726

And were the hell is this from?

View attachment 40727

are the little wire and battery wire on the same terminal?

gil · Jan 23, 2013

jamesmartin said:
are the little wire and battery wire on the same terminal?

No, The little brown wire is on a spade terminal mate

Pikey · Jan 23, 2013

Drive to Halfords, and ask them to test ya battery and ya alt. I did yesterday Main battery Varta 70ah 580CCA is fooked me secondary/accessory yellow top Battery is fooked.

and the 100ah 750CCA monster trasctor battery is good...

The Mad Hat Man · Jan 23, 2013

good job there then, Pikey?

trax · Jan 23, 2013

if your sure it's not the batteries, then it does sound like you have a short. You should be able to leave the new battery in and discon it whenever you turn the engine off

at least until you find the drain.

Pikey · Jan 23, 2013

The Mad Hat Man said:
good job there then, Pikey?

Yep cheers for the heads up..

Just got to figure a way to squeeze the tractor battery and a new secondary battery, into the battery box.

Bump · Jan 24, 2013

redhand said:
Drive to Halfords, and ask them to test ya battery and ya alt. I did yesterday Main battery Varta 70ah 580CCA is fooked me secondary/accessory yellow top Battery is fooked. and the 100ah 750CCA monster trasctor battery is good...

oh what a surprise... Halfrauds tell you something they sell new one's of, is broken, so, you need a new one...

Excuse my skeptasisim - but - i think i'll do my own testing

The Mad Hat Man · Jan 24, 2013

Bump said:
oh what a surprise... Halfrauds tell you something they sell new one's of, is broken, so, you need a new one...

Excuse my skeptasisim - but - i think i'll do my own testing

If they use a piece of Calibrated Bosch Test equipment that has a printout - how are they going to fiddle that?

It aint just some erk saying "yu need a new one, mate". If in doubt, get the printout and take it somewhere else

. Yu dont have to buy from them!

gil · Jan 24, 2013

Right I've disconnected the starter wiring from the battery so the only wire on the pos is the ones going to to electrics in the cab. Still getting a reading of 12.17 after taking all the fuses out and all the relays either side of passenger and drivers foot well. Are there any more I don't know about. I've also done the one under the bonnet on the passengers side

gil · Jan 24, 2013

ImageUploadedByTapatalk1359040136.250531.jpg

Every fuse out and still getting a reading

trax · Jan 24, 2013

sorry man, I don't understand what you are doing.

are you trying to find a short / parasitic load? If so you stick your multimeter inline between the ground batt term and clamp and read it the current in amps. Ign off.

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