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**spot01** · 03-12-19, 02:49 PM

You mention "second battery" - do you have 1 or 2 batteries in the car? If 2, are they both OK & with clean connections?

Factory wiring might have both switched & unswitched feeds (but I'm unsure if this car does).

Disconnect your aftermarket units to see if they are the cause (or pull the fuses if easier).

**drgtr** · 03-12-19, 03:12 PM

Sorry. Second as in second replacement battery

Terminals are tight and clean as!

**pajflareo** · 03-12-19, 03:31 PM

You're going to have to get very specific with your trouble shooting.

I had similar once and the issue ended up being the Winch which I isolated.

I recommend disconnecting and isolating anything aftermarket

With the car well and truly off (I think it can take some time for all circuits to power down) measure the draw on the battery.

If the parasitic draw is still there then you'll have to find out what circuit or circuits are causing the draw.

To then find out which specific circuit(s) is causing the draw, start testing at the fuse block with your multimeter

Link to a decent guide - althoguh the process is a little different to what I suggested (its call my method the new method v the old method of pulling fuses) but it might even be better; https://testmeterpro.com/parasitic-d...-a-multimeter/

**drgtr** · 03-12-19, 04:18 PM

Thank you.
This is making me nervous.

Parasitic test shows minimal draw.

I have removed everything off battery.

Only the two original wiring harness is connected to battery posts now

**drgtr** · 03-12-19, 04:29 PM

Thank you.
This is making me nervous.

Parasitic test shows minimal draw.

I have removed everything off battery.

Only the two original wiring harness is connected to battery posts now

**2bad4u** · 03-12-19, 04:48 PM

Only your second battery? You got off lightly. I'm on to my 4th battery in 7 years. A lot of us have had this problem without any answers. I can't leave my car for more than a week. I have given up looking for the problem and just put the car on a charger every couple of months or leave it on a trickle charger if I'm going away.

**spot01** · 03-12-19, 05:00 PM

Originally posted by drgtr View Post

Thank you.
This is making me nervous.

Parasitic test shows minimal draw.

I have removed everything off battery.

Only the two original wiring harness is connected to battery posts now

So, back to basics:

Measure the battery voltage after letting the car sit for a few hours at night, then measure again next morning before turning anything on (leave interior light switch off - if in a garage, leave bonnet open so you don't have to open the door).
Next night, repeat test but with your extras reconnected.

**drgtr** · 03-12-19, 05:13 PM

Originally posted by 2bad4u View Post

Only your second battery? You got off lightly. I'm on to my 4th battery in 7 years. A lot of us have had this problem without any answers. I can't leave my car for more than a week. I have given up looking for the problem and just put the car on a charger every couple of months or leave it on a trickle charger if I'm going away.

No way. I was hoping you wouldnt say that. A couple of guys on facebook group having same issue!

Parasitic test shows nothing wrong 20 milliamps. and I watch it for a good 15 minutes. Something at night must be waking up and spiking and draining?

**drgtr** · 03-12-19, 05:14 PM

Is it just a NW problem or a generation 4 issue?

**2bad4u** · 03-12-19, 05:35 PM

I think it is a GEN 4 issue. I also think it is a combination of modern car electrickery and driving style. I recently had a similar issue with the wife's Jeep so spoke to a mechanic at Jeep about it and he stated that as she only does about 10km / day each way to work the car should be driven on a 40min trip at least once a week and simply hooking it up to a battery charger wouldn't help. The reason being that the charger would only charge the main battery but there was a second battery (think small computer type one) that runs all the electronics when the car is turned off and this battery is only charged from the alternator, not the starting battery.

Whilst not a Pajero, I think it is relevant that a lot of people now only do short trips in their cars. Combine this with smart alternators and all sorts of electronic wizardry and this problem will start to happen more often.

In my case, I've recently changed jobs and now travel 30 - 45min each way / day to work so it will be interesting to see if this battery lasts any longer.

**drgtr** · 03-12-19, 06:08 PM

Okay so its still early but I think I might be onto something

So today I disconnected:

-All items off cigarette lighter plugs (which i dont think matters as that plug is on accessory power)
-The 9 inch spot light off the battery
-I believe what is the tow bar trailer plug which had a wire going straight to the positive terminal.

Now before every time I drove the car and got out the surface charge will decrease quickly and the battery will even go below 12.6 like down to 12.49 volts in less than 35 minutes.

Now its been an hour and its still above 12.65 volts
I wonder if its that trailer wire

Attached Files

**drgtr** · 03-12-19, 06:10 PM

Ill go check again in an hour or two.
Then tomorrow might just plug in the spotties again and see how that goes
then the items back into cigarette lighter

Hopefully I get to the bottom of it

**geopaj** · 03-12-19, 06:16 PM

Do you have an electric trailer brake controller? Some have been known to cause battery drain

**drgtr** · 03-12-19, 06:24 PM

No I dont think so. I cant see anything in the car and previous owner only towed a small box trailer.

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