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View Full Version : triple battery setup in semi


88Nightmare
03-14-2005, 08:59 AM
I just recently put a triple battery setup in my semi, as opposed to a dual battery setup. Its an International 4700 straight truck with the DT360 motor. I also have a dual alternator setup. Think thats enough to charge up those big 3 batteries? Im runnin 3 batteries because when I load up travel trailers on the back of the semi, I have the winch runnin and all the lights runnin and it seems to take a toll on the dual batteries. Especially since the truck isn't running. It has air ride in the back, and the truck has the feature of releasing all air in the back airbags to make it kneel down and sit on the tires so loading is easier, but the feature is dumb because you can't do that with the truck running, so Im forced to operate the winch and all lights with no motor to charge the batteries. Not sure what the amp ratings are on the alternators, but let me know what you think.

Chuck
03-14-2005, 06:41 PM
Do you want the airride valve to work with the truck running? You could easily change it, you could go to a manual dump valve like most trucks have.
You probably have dual 105 amp alternators so it is charging them up, if you do change it over just bump up the idle to 1200 or so, charges a lot better than idle.