Is It Safe To Stack Multiple Ring Terminals On Positive Battery Post
Published 05/23/2025 >
Question:
Hello, In the photo of my vehicles battery you can see the red 10 gauge wire coming from the 4 to 7 pin adapter for charging the trailer battery and the yellow 12 gauge wire coming from the 4 pin trailer wiring kit. What’s the best way to connect these two wires to the positive battery post? I have heard that stacking ring terminals is not a good idea from a safety standpoint. Thanks! John
asked by: John
Expert Reply:
Hey John,
The only time it gets iffy having multiple terminals on a battery is when you have a LOT of them stacked together. That will create bad connections and cause issues. For what you are doing it is totally okay to just put a ring terminal on that red wire and put them both on the battery. This will not cause any issues or safety worries, you'll be just fine!
How was the rest of the installation for you?
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John
5/23/2025
Thanks Nick, I really appreciate it! Running the wires under my van was pretty difficult, but I think I figured it out. It's been a learning experience, that's for sure. The positive terminal of my battery was very corroded and full of acid when I started this project which was very concerning as it was last touched by Toyota mechanics when they put a new battery in last year. I've cleaned it all up and I'm using battery post washers and dielectric grease to hopefully prevent it happening again. Thanks, John