Battery Charging Question
My tow vehicle has what Ford calls an "Extra Heavy duty Alternator" rated at 220 Amps. I am (as the name goes) planning on switching to a residential reefer. We never dry camp or boondock. I am ...
Forum Discussion
Open your trucks owners manual and go to the FUSE section
It will identify the fuse/relay used and size for trailer charge line
Most likely 30A max
BUT the issue is resistance...due to length of charge line and small size of wire
So 'charge' lines are OK for maintaining normal trailer battery demands while in transit
Your residential reefer will probably NOT demand much because it will cycle very little........it is already cold, nobody is opening/closing it while in transit and even if it does cycle it should be very short run time.
IF large demand occurs then you will have to run a larger size charge wire
It will identify the fuse/relay used and size for trailer charge line
Most likely 30A max
BUT the issue is resistance...due to length of charge line and small size of wire
So 'charge' lines are OK for maintaining normal trailer battery demands while in transit
Your residential reefer will probably NOT demand much because it will cycle very little........it is already cold, nobody is opening/closing it while in transit and even if it does cycle it should be very short run time.
IF large demand occurs then you will have to run a larger size charge wire
