Trimetric shunt/wire size question
I’m planning the install of a Trimetric battery monitor and I have a question about mounting/wiring the shunt. After studying my layout, I feel the simplest way to mount the shunt is to make a brac...
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You only need one copper pipe on the outer end of the shunt, no lugs.
Bang the pipe flat at one end. Drill two holes along that flat part so the first hole is for the shunt bolt. Next hole is for a bolt (you provide) to take some or all of the neg lugs. If too many stacked, drill a third hole and have two bus collections of neg lugs.
Beyond that last hole, the copper pipe is still round out there, and can take charger clamps. Mine is long enough to take several Vector charger neg clamps all at once, for when I used to do that. Now I mostly just use the PowerMax 100amper (blue wires in the photo above) and maybe also the Vector 40amp charger (VEC1093DBD) as well if I am in a hurry, so I don't need such a long pipe anymore but there it is.
Only reason to clamp to the pipe is so I can see the total charging amps on the Trimetric. I could still charge the batts just as fast by clamping to the batts directly, but then it would not show on the Trimetric and its AH counter would be off by a bunch.
Bang the pipe flat at one end. Drill two holes along that flat part so the first hole is for the shunt bolt. Next hole is for a bolt (you provide) to take some or all of the neg lugs. If too many stacked, drill a third hole and have two bus collections of neg lugs.
Beyond that last hole, the copper pipe is still round out there, and can take charger clamps. Mine is long enough to take several Vector charger neg clamps all at once, for when I used to do that. Now I mostly just use the PowerMax 100amper (blue wires in the photo above) and maybe also the Vector 40amp charger (VEC1093DBD) as well if I am in a hurry, so I don't need such a long pipe anymore but there it is.
Only reason to clamp to the pipe is so I can see the total charging amps on the Trimetric. I could still charge the batts just as fast by clamping to the batts directly, but then it would not show on the Trimetric and its AH counter would be off by a bunch.
