We made our run from Yuma to Nebraska and the 20 amp DC to DC charger worked perfectly. With the refrigerator, freezer and disk brake actuator running I checked the voltage when we stopped with truck off and it was between 13.6 to 13.8 every time. Because of cold weather we had hookups every night and started with 13.46 volts, that's the normal holding voltage for the converter. I did load tests on the batteries when we were sitting in Yuma so I know they are up to the task but I may still add on more one more. I'm more than happy with the upgrade and would recommend it.
Denny
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