In Reply to: ammeter / light posted by Peter Nelson on October 23, 2018 at 08:11:18:
I keep my batteries on maintainers. I've found that the charge level maintained by most maintainers and other plug-in battery chargers is slightly higher than the "fully charged" level the 6 volt regulators are set to. My 6 volt tractors rarely show much charging current. Winter is coming, which sometimes means a few more seconds or a second crank cycle if I stall the engine trying to get rolling too soon. I expect to see a little more charge current in colder months.
Ignition current is too little to do more than maybe cause the ammeter to wiggle when the key is turned on and off.
At anything above idle, turning lights on should result in a momentary negative dip of the ammeter needle. Likewise switching lights off should cause a momentary positive reading. The regulator should very quickly react to lights on or off and bring the needle back where it was before the load changed.