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Old 04-05-2021, 12:01 PM #1
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PSA: Maintain your battery terminals

Sharing a maintenance item some may have overlooked (I sure did).

I've spent some time building out my 12v setup. I'll share an observation:
  • With stock terminals, I noticed my alternator charging voltage was fluctuating from 13.3-13.9.
  • With new mil spec terminals (pictured below), my charging voltage holds steady at 13.8-13.9.

My old battery terminals were old and corroded-- I suspect this was causing a poor connection the the battery. I didn't do a full "big 3" upgrade because the Mil Spec terminals gave me flexibility to wire directly to the battery.

You probably don't need to go as far as I did. I assume even a proper cleaning would have made a difference.

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Old 04-06-2021, 10:54 AM #2
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Use a brush to get rid of corrosion.
Then put vaseline on the terminals.

Regarding your setup. Blue Sea is made by Eaton. You can buy the Eaton RTMR and it's 100% waterproof / submersible. Waytekwire sells their switchable circuit breakers real cheap.

The only criticism I can give on your picture is the need for rubber boots over your hot terminals. Don't take the risk of anything arcing when you accidentally lay a wrench in there.
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Old 04-06-2021, 01:46 PM #3
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Quote:
Originally Posted by randy88fj62 View Post
Use a brush to get rid of corrosion.
Then put vaseline on the terminals.

Regarding your setup. Blue Sea is made by Eaton. You can buy the Eaton RTMR and it's 100% waterproof / submersible. Waytekwire sells their switchable circuit breakers real cheap.

The only criticism I can give on your picture is the need for rubber boots over your hot terminals. Don't take the risk of anything arcing when you accidentally lay a wrench in there.

Youíre totally right.

These covers off Amazon just came in today. Both terminals are covered now.

Fastronix Military Spec Battery Terminal Covers (Red and Black) Amazon.com: Fastronix Military Spec Battery Terminal Covers (Red and Black): Automotive
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