Battery drain problem.

[jon200]

I did a battery relocation on the car whilst under sealing it and I think i have given myself a battery drain issue. It has started going flat over a period of 4-5 days. Battery is a new 054, alternator is putting out 14.8-15V which I think is a little high but i don't think it will cause too much of an issue.

I have ran a 25mm2 cable front to back through a fuse and earthed the battery in the boot making sure i cleaned the paint off(need to double check the connection) i asked on here if i needed another earth wire and the consensus was no so i didn't bother. Could a poor earth create a drain on the battery?

The other thing i did when i relocated was use wax in the cavities so there is a chance that i may have indadvertedly sprayed some on the back of the interior light switches or on something else. Could this cause a problem?

I have removed the fuses from the amps and switched the interior light off completely just incase i had a dodgy switch(probably should disconnect the switches completely). Ive got Defi gauges and Tein EDFC and a Clifford alarm added to the system but it seemed ok when i first got the car. Do i need to go round systematically removing items that are using power on the permanent live circuit or is there another way to check for drains?

Will probably buy a full size battery tomorrow anyway now its in the boot for a bit more oomph starting.

Any suggestions welcome.


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[autosri]

Have you checked the current draw with a multi meter to see what your actually using when the car is locked up

My bet is the alarm is causing it but have no actual proof the Clifford alarm on my parents kit car is a ****er for it

[auz200sx]

Have you checked the current draw with a multi meter to see what your actually using when the car is locked up

My bet is the alarm is causing it but have no actual proof the Clifford alarm on my parents kit car is a ****er for it

I second the above.

[Nuts]

The test for this is to put a multi-meter inline and pull a fuse at a time.

Watch the current draw in the multi-meter.

[jon200]

Will do that this morning thanks.


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[jon200]

If I dont arm the alarm would that eliminate it?


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[jon200]

Does 0.8A with nothing on seem high?

With the dvm between ground and the negative battery terminal.


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[jon200]

Its draining 0.8A through FL75A whatever that supplies.


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[jon200]

the good news is that it doesn't supply the alarm or the ECU so that helps a little. The bad news is that is seems to supply the ignition etc.

[autosri]

That sounds a lot as if you have a 40ah battery it would be flat in 2 days so I'd start hunting that way the fsm has some good diagrams which should lead you the right direction

[jon200]

Ive found the page in the manual with the fuse numbers from the 75a fuse. Will have a look tomorrow. Even if i need to leave a fuse out for now or unplug it when i park up.


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[autosri]

Have you done this with all the doors shut and the car locked up as it would normally be left ?

[jon200]

Yeah and it makes no difference if the alarm is activated either.


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[autosri]

It wasn't so much that but I didn't k ow if when you locked it up a relay dropped out a relay for something like your boot lights for example something that's not easy to see

[Chriscooke]

Do you have any gauges or power fc etc wired up to a constant live which should only come on with ignition?

[sideways14a]

Thats about 10w of power aint it, an awful lot for a sustained load when the car is supposed to be off.

Pull the stereo and see if its at it.

[autosri]

May have relay welded in id expect a static draw to be less that 0.1

[jon200]

I need to check the Defi gauges but they do switch off with the ignition and the pfc is not on the same circuit at the 75A fuse so not that. Same and the alarm circuit i guess as they both work with the fuse removed. Bloody battery is flat too so need to charge it. Trouble it i'm not convinced the battery charger is working 100% either! Hardly anything being drawn at the mo but the battery if pretty flat so would explain that right? It could be stereo related deffo not amp related though.


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[jon200]

May have relay welded in id expect a static draw to be less that 0.1

If it was a relay it would either be the ignition relay or accessory relay as they seem to be the only ones direct from the 75a fuse. I will remove fuses 16-23 anyway and see what we have. Anyone have a better idea of what the fuses feed as DEF/S, DEF etc doesn't mean much

[auz200sx]

If it was a relay it would either be the ignition relay or accessory relay as they seem to be the only ones direct from the 75a fuse. I will remove fuses 16-23 anyway and see what we have. Anyone have a better idea of what the fuses feed as DEF/S, DEF etc doesn't mean much

Fused bulb?