Saturday, Feb 25, 2017 at 20:03
Hi
I started this thread with a question on the anticipated output at my utes rear anderson plug as I didnt want to damage my 50A wattmeter if I connected it up. I am interested in understanding the way my ute and van are wired up. I have received some good advice from several forumites regarding the wisdom of my 20A BCDC charger being conncted with both my auxillary battery and the caravan battery which I hadn't considered. I therefore hooked the van up to my anderson plug via the wattmeter with my 3 way fridge in the van connected on DC and a small fridge in the rear of my ute running off the auxillary battery. This is the result of my
test.
No motor running
12.6V at the ute battery
12.7V in the van battery
Minimal watts going through the watt meter.
Ute motor running
13.2V at the ute battery
12.7V at the van battery
160W going through the watt meter approx 12.9V
Turn off the fridge in the van with motor running
13.2 V at the auxillary battery
13.2V at the van battery
80W going through the wattmeter
I therefore conclude the rear anderson plug is serviced through the BCDC charger as I would expect to get more volts if the lead were from the alternator. The anderson plug charges the battery in the van which in turn
services the 3 way fridge. This I think because the volts in the van battery rises when I turn off the fridge with the motor running.
If this is the case then I agree that the system is incorrect. Unfortunately due to the spaghetti wiring its hard to physically see the route of the cables in the van and ute.
I would welcome any comments as to whether or not my logic is correct. Having said that the last
forum comment appears to have the same set up as me and experiences no problems.
The mind boggles.
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