Battery keeps going flat

blackvulcan100 · Aug 1, 2014

I have an ongoing problem with my battery going flat after around five days.
The vehicle has been in the garage, a land rover expert who I completely trust.
The vehicle was in the garage for nine days and every fuse was removed and all testeda nd found to be good. Land Rover experts have been contacted but to no avail.The battery is still going flat.
The battery is nearly new and has been tested and found to be OK.
The consensious of opinion is that the fault must be in the wireing loom.
Any body any ideas where to go now ?

malc

sierrafery · Aug 1, 2014

you rather need a auto electrician expert than a LR expert

landowner · Aug 1, 2014

blackvulcan100 said:
I have an ongoing problem with my battery going flat after around five days.
The vehicle has been in the garage, a land rover expert who I completely trust.
The vehicle was in the garage for nine days and every fuse was removed and all testeda nd found to be good. Land Rover experts have been contacted but to no avail.The battery is still going flat.
The battery is nearly new and has been tested and found to be OK.
The consensious of opinion is that the fault must be in the wireing loom.
Any body any ideas where to go now ? malc

Need to test battery for drain, remove all fuses and replace one at a time until the test meter shows a drain from the battery, or the other way round, remove one at a time (and replace) until the test meter shows the drain has stopped, you then know which fuse the fault is on.
Could be a faulty relay

tobytess · Aug 1, 2014

had same problem had a drain test done no problem found,had the battery tested and no problem found. The auto electrician put a new battery on and said see how it goes and after 3 months its all working fine so its worth trying a new battery cant do any harm

jbenekeorr · Aug 1, 2014

I don't know if the Disco 2 is more sophisticated, but my 300tdi kept going flat when parked at home for a few days. I tried everything - someone eventually suggested it might be a transmitter of some sort.

Took the batteries out of my little weather station (which was about 3 metres from the car) and the battery drain issues immediately stopped. No issues since - I believe it was keeping the car 'awake' as it operated on a similar frequency to the immobiliser.

blackvulcan100 · Aug 2, 2014

Thanks Guys,

Going to take the vehicle to a electrical car specialist.

blackvulcan100 · Aug 2, 2014

landowner said:
Need to test battery for drain, remove all fuses and replace one at a time until the test meter shows a drain from the battery, or the other way round, remove one at a time (and replace) until the test meter shows the drain has stopped, you then know which fuse the fault is on.
Could be a faulty relay

We did all that all fuses checked out ok,going to take vehicle to an electrical specialist near here.thanks, malc

SmileySteve · Aug 2, 2014

Leaky diode bridge in the alternator can cause it.
Take fuses out, remove live terminal off the battery and put a meter in series between the battery terminal and the live cable set on current, if it shows a reading then its discharging through the alternator as thats the only thing still in circuit (providing theres no other unfused additions)

Battery keeps going flat

blackvulcan100

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sierrafery

Well-Known Member

landowner

Pensioner Pete

tobytess

Active Member

jbenekeorr

Active Member

blackvulcan100

Active Member

blackvulcan100

Active Member

SmileySteve

Well-Known Member

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