DEFENDER90-DAZ
New Member
Try this: set your multimeter to Mohms setting then measure from the battery negative terminal to a good clean connection point on your engine - let us know what reading you get 
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Right, what I'd do is.. with the battery still connected go and measure the volts, record the number. It should be around 12.06ish.. leave it overnight. Before you start it or anything else in the morning, go and measure it again in volts. Record the number.
In the morning. Leave the multi on. Turn all leccy stuff off, crank it and watch the multi. Record the number it dropped to. Don't keep cranking and cranking.
Also, do this
Give us all those numbers
In the morning. Leave the multi on. Turn all leccy stuff off, crank it and watch the multi. Record the number it dropped to. Don't keep cranking and cranking.
Also, do this
Try this: set your multimeter to Mohms setting then measure from the battery negative terminal to a good clean connection point on your engine - let us know what reading you get
Give us all those numbers
DEFENDER90-DAZ
New Member
Those numbers look ok to me - so you have a decent earth path from your battery to the engine - battery looks ok as it only dropped to 11.46 on cranking the starter - starter looks ok as its not dragging too much from the battery - the battery has dropped from 12.43 to 12.23 over night it will tend to stabilise after charging anyway.
Next test i'd do is turn everything off including ignition - remove the positive lead from the battery - select AMPS on your multimeter and the go from your positive terminal on the battery to the positive lead and tell us what reading you get
Next test i'd do is turn everything off including ignition - remove the positive lead from the battery - select AMPS on your multimeter and the go from your positive terminal on the battery to the positive lead and tell us what reading you get
Of course yu will still get 12V'ish if measuring between + and ground, irrespective of any fuses - you are measuring the VOLTAGE - ie the potential DIFFERENCE between + and ground, which will always be about that :doh:
DEFENDER90-DAZ
New Member
Thats a bit of a drain that mate with everything switched off!
What i would do next: keep the multimeter connected between the positive terminal and positive lead and start pulling fuses - pull a fuse then check to see if the current draw lessens on the multimeter - if not replace the fuse and pull the next one - you are trying to find which circuit/circuits drawing the current
Let us know how you get on
What i would do next: keep the multimeter connected between the positive terminal and positive lead and start pulling fuses - pull a fuse then check to see if the current draw lessens on the multimeter - if not replace the fuse and pull the next one - you are trying to find which circuit/circuits drawing the current
Let us know how you get on
So, to be clear, you left the battery connected last night and you used the same battery to start it up this morning, and it started fine?
If so then I'm thinking it is a loose connection or a bare wire somewhere that is shorting whenever it moves.
If that's correct, then you need to wait till it stops working again and then do the load test/ pull fuses, etc to identify the wire.
If so then I'm thinking it is a loose connection or a bare wire somewhere that is shorting whenever it moves.
If that's correct, then you need to wait till it stops working again and then do the load test/ pull fuses, etc to identify the wire.
Read the batt drain thread in the FAQ section.
If yu had a drain of 0.05Amp, that equates to 0.6watts. Certainly not a 5W light!
More likely to be Electronics related.(BCU etc)
If yu had a drain of 0.05Amp, that equates to 0.6watts. Certainly not a 5W light!
More likely to be Electronics related.(BCU etc)
