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H4 Relay Question

Mitch_M

By Mitch_M,
in BMW 2002 and other '02

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Mitch_M Community Regular

Mitch_M

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So I just recently upgraded to Hella H4s, and bought a relay harness off of eBay. My question is that it comes with a wire that is supposed to run to the battery, but since my battery is in the trunk, that won't exactly work. Where would be the best place to connect this? 

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tashakes Mentor

tashakes

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My trunk battery conversion has a connection that comes from the trunk to the original battery terminal by the front left corner where the battery was originally placed. Look for some point like that, not sure if all conversions are done like mine.

76 BMW 2002 Arktisblau M42 5 spd - Born 5.21.76 - daily money pit

06 Aston Martin V8 Vantage 6 spd - garage queen *  73 Mustang Convertible 351C 

15 VW Touareg V6 Executive - daily driver * 23 Audi e-tron SUV (wife's)

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Simeon Grand Master

Simeon

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Alternator is fine, that is where I have connected mine.

Crimp a ring terminal on it after feeding it through the 90 degree rubber boot over the output terminal on the alternator.

rtheriaque wrote:

Carbs: They're necessary and barely controlled fuel leaks that sometimes match the air passing through them.

My build blog:http://www.bmw2002faq.com/blog/163-simeons-blog/

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Mike87 Mentor

Mike87

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Your battery cable should connect to the starter, so if you connect your +12V there, it will be the same as connecting to the battery.

 

My trunk mounted battery has a connection panel in the engine compartment that is meant for accessories (like lights) and such. This panel is also connected to the starter...where the main cable from the trunk attaches.

Edited by Mike87

Good Luck,

Mike (#87)

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Mitch_M Community Regular

Mitch_M

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Your battery cable should connect to the starter, so if you connect your +12V there, it will be the same as connecting to the battery.

 

My trunk mounted battery has a connection panel in the engine compartment that is meant for accessories (like lights) and such. This panel is also connected to the starter...where the main cable from the trunk attaches.

Mike do you have a photo of that connection panel? I'd like to see it because I want to clean up the bay a bit. I've got it going to the starter right now. Just thought I'd see where others are running it to.

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