Forum Discussion

pc500's avatar
pc500
Explorer
Nov 16, 2014

Onan 4K -12V on starter relay-why is it grounded to chassis?

I'm trying to hook up an ammeter and am discovering there is an additional connection from chassis to battery ground. It appears current is going from the Chassis to the onan generator starter relay ...
tenbear's avatar
tenbear
Explorer
Nov 17, 2014
Joe417 wrote:
It may be more accurate to install the shunt in the positive leg of the battery.

The same current flows in the negative and positive lead. It is better to put the shunt in the negative lead since puting it in the positive lead requires running 2 small wires carrying the full 12v to the meter. Of course, if you really want to, you could put a fuse in both meter leads.

My ammeter is installed in the negative lead.

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