Originally Posted by David Welcher
Originally Posted by 4Weight
T21x,

Correct me for the OP but I believe you can't run the Garmin Graphs with anything bigger than that 18v. That may even be too high. I know the 20v will burn up the graphs.

I have my graph's hard wired to the cranker and my set up again was for the black box only.

4W

24V is the max




There are different specs for the different lines, not all are 24v.