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Had all battery cables off battery while working on new boat (added courtesy lighting, compass (lighted), USB outlet, depth finder, all on a fused switch panel).
Prior to reconnecting battery, got out the multimeter to check my work.
All looked great until I got to the battery. The two large cables, positive & negative, for the motor, had a "partial" short. It measured 20,000 ohms.
I'm thinking this is right up into the motor, the alternator (generator?) or some similar circuitry or equipment.
But a connection is s connection ... and I fear my battery will be draining (or worse).
Anybody know what's going on?
Just to be sure, I have a master cutoff of positive power between battery and fused switch panel (reading is the same on or off). Also, I did not modify any wiring except in the console, where the positive and negative wires originally "landed" at the 12v outlet as their first stop.
ClevelandBill Ferry
m/v SHRUG
2015 150 Super Sport 60hp Merc
I would not worry about this from a battery drain perspective. 20k load across 12 volts is less than a milliamp. Your battery will not notice this, and it will be far less than the normal internal discharge rate of the battery.
50Ah / .6mA > 83,000 hours.
My suspicion is that it is the normal load of some internal electronics internal to the motor, perhaps memory storing engine data or some such.
Yeah I'd agree with DV.
Like a car radio that has a clock or alarm,
I'm sure your new boat has some trick chit.
I doubt a trickle charger would be necessary.
TP
