Hi SW do you know the current draw of your compressor?
Hi (may be a dumb question) but I have a compressor that has a Cig Lighter socket at the end ... and I use it all the time to fill up my tires ... is this bad?
Hi SW do you know the current draw of your compressor?
You only get one shot at life, Aim well
2004 D2 "S" V8 auto, with a few Mods gone
2007 79 Series Landcruiser V8 Ute, With a few Mods.
4.6m Quintrex boat
20' Jayco Expanda caravan gone
Thanks ... good to know ... I have so far used it to check and top up my car tires so I didn't know any different ... I might invest in a better one before going out to the beach ...
Hi folks and anyone considering wiring a high current drawing compressor in any new Land Rover, not just in a DS or D5, and this info relates to any high current requirements, connect the positive lead of the device or DBS to the craning battery’s positive ( + ) terminal.
DO NOT connect anything to the NEGATIVE ( - ) terminal of the cranking battery.
On most new vehicles, not just Land Rovers, connecting any medium to high current loads to the negative ( - ) terminal of the cranking battery can cause problems seemingly unrelated to the battery or charging system.
So connect your device’s negative returns to a good earth point, such as the same point where the cranking battery’s negative cable is bolted to the vehicle’s body/chassis.
You only get one shot at life, Aim well
2004 D2 "S" V8 auto, with a few Mods gone
2007 79 Series Landcruiser V8 Ute, With a few Mods.
4.6m Quintrex boat
20' Jayco Expanda caravan gone
Hi Drivesafe, I'm about to tackle this job over the Easter weekend, so am glad I found your post. I will be running a 16mm2 feed with a 40A fuse from the car battery through an Anderson plug at the rear of the car, to a 30A DC-DC charger in my caravan supplying a fridge and charging the house battery while driving. So, could I ask you to expand on why it's not good to connect the negative direct to the battery negative terminal? As the negative chassis point is itself directly connected to the negative battery post by a short (about 10cm) cable, I'm wondering what the difference is? Appreciate any advice you can give for my intended setup. Thanks.
Good question. I was wondering the same thing. After careful inspection of the DS battery I decided that there was only one thing connected to the negative terminal and that is the short length of thick cable connected to the body earth. I therefor connected the clamps on my portable ARB dual compressor straight to the battery terminal as it was easier to get to than the body earth point. No problems so far, touch wood.
I'm probably wrong, but can it cause a gassing problem?
OK folks, I think there needs to be some research done on just what sort of alternator charging goes on in the DS.
I have not had the time to even look at a DS, let alone test their voltage operation, and it sounds like they may not have a “smart” alternator operation, because there does not seem to be any monitoring of the cranking battery.
So if someone has the means, can you monitor the voltage of your DS while it is in use.
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