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Posted by Jerry in Idaho on Friday, January 09, 2009 at 10:55:06 :
In Reply to: Alternator posted by Sam on Friday, January 09, 2009 at 02:44:45 :
I have the same problem in my W300 when I use the plow. The alternator just won't charge enough at the rpms you are running at when plowing. Consider installing a second battery, in parallel with the other one. Pos. to pos. and neg. to neg. connections. Use heavy wire, same size as the battery cables have now. You can also help the system by connecting a trickle charger to your battery after you are through plowing.