 | Home > In Car Electronics > How to connect wires to the battery terminal (2015 Puma) |
 
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The bolt is far too short and it seems not easy to replace it by a longer one.
| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20299  
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Use a bulkhead lip bolt just behind the cubby rear below, it is a steel lip with steel bolt.
That is a good earth but may need a bit of paint removing for excellent contact. I used this for by Amp earth and that is nearly 50A send really needs a good earth! |
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10th May 2016 9:20pm |
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| flyingfab Member Since: 14 Jun 2015 Location: Brittany Posts: 60  
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Wow, thanks for such a fast answer !
I see the bolts you are talking about ; that could be a pretty good location for that ! But I must admit that "a bit of paint removing" scares me ... Even if it's inside, I don't feel comfortable in removing paint from somewhere  |
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10th May 2016 9:37pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20299
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Try it without removing the paint just with the bolt tightened and then use a multimeter to check for contiuity.
You might find its okay as is, mine was. The closer the reading to zero the better, just measure from your newly fitted terminal to the battery earth.  |
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10th May 2016 9:44pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17351 
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Why not replace the pathetic original battery connector with one that is better suited to the job?
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10th May 2016 9:47pm |
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| flyingfab Member Since: 14 Jun 2015 Location: Brittany Posts: 60
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Yes, that sounds smart What do you think I should consider as a good value, in Ohms ? |
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10th May 2016 9:57pm |
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| flyingfab Member Since: 14 Jun 2015 Location: Brittany Posts: 60
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That would be an ideal option, but the car is still under warranty, that's the problem. Well ... yes, I could give my dealer a call tomorrow to figure out if he would accept to do a job like this. |
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10th May 2016 10:01pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20299
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The trouble is like Blackwolf mentions, the factory clamp is very poor. I had trouble with it myself.
For your use though you'd have to be in mind you'd have to route your wires out of the battery box also. Impedance reading on mine was 0 or 0.1 so was a very good earth so I don't think that'd be a concern for the bulkhead lip. |
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10th May 2016 10:12pm |
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| flyingfab Member Since: 14 Jun 2015 Location: Brittany Posts: 60
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So, the bulkhead lip might be the winner
Any idea of the torque when tightening the nut back, after fitting the connector ? (don't laugh at me, I wouldn't like to see the body falling apart in a turn  ) |
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10th May 2016 10:24pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20299
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No idea, tight enough to be firm not over tight.
The terminal I fitted on there was around 1mm thick, a gold plated terminal for 4gaugue OFC primary power audio earth. The bolts have a bit of room on them to take extra. If one was used up there are about 8 to choose from. |
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10th May 2016 10:31pm |
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| flyingfab Member Since: 14 Jun 2015 Location: Brittany Posts: 60
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I'll keep that in mind
Thanks to you all for these tips
Fabien |
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10th May 2016 11:21pm |
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| MartinK Member Since: 02 Mar 2011 Location: Silverdale (Lancashire/Cumbria Border) Posts: 2665 
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So... if you follow the battery earth cable out of the seat box, and under the car, it bolts to the chassis rail.
I added my earth connector (for accessories) to that point. There is (on a 2011) a 110mm bolt right thru the chassis (just rearward of the fuel cooler), with a couple of earthing straps there...you can just add yours... job done. Seems easiest to me...  Click image to enlarge Defender "Puma" 2.4 110 County Utility (possibly the last of the 2.4's) Last edited by MartinK on 11th May 2016 6:32am. Edited 2 times in total |
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11th May 2016 5:40am |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3639 
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I drilled a small hole in the top of the -ve terminal tapped it and used a small bolt DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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11th May 2016 6:07am |
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| ethanicus Member Since: 11 Jan 2013 Location: Surrey Posts: 94 
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On mine, I just used a long bolt and shaped the head to match the original with a grinder. Fitted as normal then used a ring terminal and a nut on top. Whilst in warranty I didn't want to cut the original battery cable.
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11th May 2016 7:46am |
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| Gurmot Member Since: 01 Apr 2016 Location: Somerset Posts: 36 
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I also used a longer bolt with a filed down head. Works fine and is a great place to add an extra earthing strap that bolts to the inside of the battery box, this helps with security.
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13th May 2016 1:03pm |
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