Waeco CF-80 Query

Thanks Bonz, that's good to know. I'll be on the phone to them tomorrow.
Cheers, Gary M.

Gary, I agree with Gronk.
The CF80 is rated at 7.5 Amps running current. It probably briefly draws double that at startup. So if you are measuring a running voltage droop of 0.75v then the startup droop could well be 1.5v or more which may be going below the monitor trip point.
Maybe beef-up your cable size. Although it could also be that your batteries are getting a bit low in performance?
If using a digital voltmeter, it may not respond fast enough to get a sensible reading at startup.

Thanks Gronk & Allan, yeah I was wondering about cable size and will check the voltage drop at start-up and see how I go.

Thanks again, Gary M.

I reckon the cable size needs to be upgraded too, fridges love bigger cables

Thanks Graeme, I was wondering about the Waeco plug wiring, it does seem a bit light on.
Had the batteries checked by an auto electrician a couple of months back and they were ok then but may have gone downhill since.
Regards, Gary M.

What setup do you have Graeme? I understood a fully charged battery (not being charged) would have a voltage of 12.8v. Unless yours are being charged somehow overnight I would have expected running two fridges would take them down from 100% by morning.

Hi Gary. 280watts of solar panels charging two full river agms , one 80amp under the bonnet and one 100 amp under the tray. Fridges are one 75 and one 60 litre trailblazer that have very good insulation and are wired with 8b&s cable which is a minimum if you dont want any voltage drop. Nothing chargers the batteries at night and voltage rarely falls below 12.6 with one fridge running as a freezer. Voltage drop is the main cause of fridge problems and the first thing i would do is get rid of the waeco plug , shorten the cable and use anderson plugs on all connections. If you buy new batteries (agms) take a volt meter along and buy the one with the highest voltage , recently i bought a couple of 8amp hour agms for running leds around camp and the voltage on them sitting on shelves all the same age varied from 12.4 to 13.3. I bought two that read 13.3 and 13.2. The salesman wasnt going to let me test them till i said i would go somewhere else and buy them. Good agms lose very little voltage sitting on a shelf for a couple of months. My fridges run about one third of the time with a bit of thought going into restocking etc like restocking beer in the morning with the sun up etc. Next setup will probably have three batteries
cheers Graeme.

Thanks CJ, yeah got the battery monitor set on low. The fridge is currently at Opposite Lock in Wodonga who are one of our local Waeco Service agents, they had a look at the battery setup on my camper today and couldn't find any problems so they're checking out the fridge but I may just have to accept, as you suggest that these mothers do suck a heap of power.
Switching off the night is a good suggestion.
Cheers, Gary M.