AMP Ground Wire
Road Master
Joined: Mar 2021
Posts: 852
Likes: 374
From: Toledo, Ohio
Just ground to where the battery is grounded to the frame. NVS has a great video on it. Get 12 0awg cable and upgrade the battery ground while your there. That way you have 1 cable to your battery and the accessories are grounded to the bolt on the frame. Its not hard and its right there by the battery
Grand HDF Member
Joined: Sep 2017
Posts: 3,700
Likes: 913
From: Southern Virginia
Just ground to where the battery is grounded to the frame. NVS has a great video on it. Get 12 0awg cable and upgrade the battery ground while your there. That way you have 1 cable to your battery and the accessories are grounded to the bolt on the frame. Its not hard and its right there by the battery
Grand HDF Member
Joined: Sep 2017
Posts: 3,700
Likes: 913
From: Southern Virginia
I was actually going to try that route but I have so much junk added to my system that most folks don't that I didn't really have room for them. I wound up just getting some zero gauge terminals and putting all my eight gauge wires into them and crimping them down. Not pretty but compact and reliable.
Stellar HDF Member
Joined: Mar 2008
Posts: 2,328
Likes: 2,205
Another issue that comes up is if several high current amps are grounded to the frame the factory battery strap could not handle the load and should be upgraded. As long as folks remember that I imagine everything would be fine, but if someone forgot to install a heavier gauge run from the battery to the frame I would think that it could easily be overloaded.
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Road Master
Joined: Mar 2021
Posts: 852
Likes: 374
From: Toledo, Ohio
Its like doing the big 3 in a car. Upgrade the cable. Its not meant for after market amps and all the accessories. Its 12 of cable. 2 bolts.
Club Member
Joined: Sep 2014
Posts: 7,618
Likes: 10,437
From: Des moines IA
Nothing on a stock bike draws more than 50 amps. The stock cables are designed to hold those loads. Aftermarket amps (especially multiple amps) can easily exceed those loads. Depending on the setup, I wouldnt want 100 amp draw going through a cable specd for 50amps.