Electrical Problem?

[ramzb]

I've tried a few different batteries, it's a brand new one on at the moment. Once connnected it'll only last about 4-5 hours before it's flat, leave it overnight and it's as if there is no battery.

[reece]

Hi m8'
Just a thought, Have you checked the boot light to see if it is turning off with the the boot is shut?

[ramzb]

Tried all the obvious things like lights etc, even pulled all the fuses and it still goes flat overnight, something is draining all the current but can't find out what.

[Dr Silvia]

Something is draining your battery thats for sure.. disconnect 1 battery terminal and use a multimeter to get a current reading with the ignition off. This will tell you how much current you are using with the ignition off.. not sure on what a 'good' reading would be but suspect under 3 amps

If that checks out fine then chances are its your alternator

Have you measured battery terminal voltage with the engine running? If it reads 12.5v then check the alternator output

terminal 'b' (+ve); measure the brown insulated terminal with 10mm nut to earth.. Should be 13.0 - 15.9v if not, its shagged

[30psi]

You can try disconnecting the fusible links, in the little black box near the battery.

This will prob stop the battery dying. Then use the multimeter on the terminals to see where the current is being drawn from.

One thing for sure is...

Its only a simple thing thats causing the problem. Its finding it thats the pain.

[ramzb]

OK, thanks for that, I'll try all that tomorrow, give me something to do in the morning before getting totally rat-arsed

[PukkaSilvia]

Originally Posted by ramzb

OK, thanks for that, I'll try all that tomorrow, give me something to do in the morning before getting totally rat-arsed

Have a good news eve