Electrical issue not really related to my Freelander

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
I hope you mean linking the multimeter in series with the battery and measuring the current draw (amps) with the meter in the amps position.

DO NOT leave it in circuit when starting your car a it will simply melt it. Most multimeters can't handle more than 10 amps.

Voltage is measure by putting a multimeter in parallel.

yes, certainally wouldn't try and start the car with the multimeter in situ

didn't want to give u a heart attack when u read that, lol
 
What sort of figure would be 'normal' with everything 'turned off'? Presumably there will be some drain - eg ECUs/Alarm.

Edit: Searching on the above stuff, my friend YouTube recons a figure above 50 milli-amps is considered a drain - the test video showed 6 milli-amps on his car.

I don't own a Hippo at present but may be someone here will kindly measure the curreny draw when car is at rest with everything switched off, including the interior light.
 
I finally managed to drag my boy out this evening at 11PM to test the electrics on his Rover - after I bought a multimeter!

It was pitch black and we were waving our arms around like ejuts to get the neighbours security lights to come on :) ... but we think we got a reading of 9.4ma - which would indicate there isn't a drain. So we'll have a look again in daylight and double check before we positively conclude that.

I'm happy though - at least I did manage to get him off his butt and do something!
 
I finally managed to drag my boy out this evening at 11PM to test the electrics on his Rover - after I bought a multimeter!

It was pitch black and we were waving our arms around like ejuts to get the neighbours security lights to come on :) ... but we think we got a reading of 9.4ma - which would indicate there isn't a drain. So we'll have a look again in daylight and double check before we positively conclude that.

I'm happy though - at least I did manage to get him off his butt and do something!

9 mA is nothing to worry about. My Discovery 3 has a 55 mA current drain.

All you need to do now is work out why the battery went flat last time.
The interior light should go out after a set period of time set by the CCU, discounting that.
The boot light switch could be faulty, intermittently switching on the boot light. The boot light isn't controlled by the CCU.
 
if he has a cd player in it switch it back to radio, or the memory in it drains a bit, not enough though to flatten a battery in 2 days . hope this helps
 
You can do the maths to check what current will drain the battery in two days.
Lets assume your battery is 75A per hour (cause it makes the maths easier)
That means it should give 75 amps for one hour or 1 amp for 75 hours. (I know that isn't strictly true but is close enough for our purposes)
Divide 75 by 48 (the number of hours it took to kill it) = 1.5 (ish)

Therefore your car must have been drawing around 1.5A to kill the battery in 48 hours
Interior lights are commonly 5W so one bulb will draw just under 1/2 an amp so it would take three interior lights on for 48 hour to kill a good battery.

Probably!
If anyone knows I'm wrong please step in now and say so.
 
Good logical approach there.

Thanks for the input peeps. I've been out fishing since first light and got back to find said son gone off in our 'backup' Starlet - so all the time he has access to transport, he feels little inclination to sort his own car out!
 
Hmm, think that may have been born in the UK.[emoji14]
Ah, that explaines it then. 😄

Strange thing is my son is the opposite, he spends time and money fixing things that ain't broke. He MOT'd his Scubie a month before it was due (not sure why cause if it had failed it officially has no MOT) and is always changing bits that have years of life left.
 
Back
Top