SoundGuy wrote:lawrosa wrote:
Upon a few tests with 6 gauge wire and a andreson plug tied to the 40 amp mega fuse, the fuse would blow.
I did the same mod several years ago so I could load support my single G27 trailer battery with my Avalanche but since it didn't have an aux battery I pulled directly from the truck battery with it running.
I did the same with my old truck and why I did it to this one. I used it on the old truck for charging. This one I want to use for both charging and adding the third batt with heavy gauge wire instead of 7 pin.
I used 10' of 4 gauge booster cable for minimal voltage drop and that worked well ... what didn't were those same Andersen SB-50 connectors you've used which burned & melted.
Really? They good for 120amps I believe. I bought these KFI products connectors. Ill keep an eye on them. I ran 60 amps on my other truck through them with no issues.
Yeah post a pic? Did you make the ends yourself? I always crimp and solder when I can.
https://www.kfiproducts.com/quick-connect-ends.html
I recently bought a new 4 gauge booster cable and this year will be load supporting my new G31 AGM trailer battery with my Silverado but this time I won't be using those d***** Andersen connectors but instead will clamp directly from the truck battery and truck chassis ground. I still have those Andersens and can take pics if you need proof ... JMO but I'd get rid of them before yours too melt.
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Just a note the silverados are BCU controlled. Meaning the volts are controlled by the computer.
I charge as high as 15.5 volts. I see 14.5 volts at the 7 pin. And during my test the truck ramped up to 15.3 volts. There is a sulfation mode on these trucks. I got 11 years out of the original batterys.
Its a very good charging source for camping IMO.
RVC system Silverado
