Question regarding DC to DC Chargers
I am installing a Renogy 20-amp DC to DC charger. My question is regarding the negative cable connections. The instructions say to connect the input negative cable to the chassis battery and the outpu...
Forum Discussion
theoldwizard1 wrote:eric1514 wrote:
You need to run a positive cable up to the battery. Why can't you run a negative as well?
No, you do NOT need to run a positive wire to the battery !
This is the reason DC-DC chargers were invented ! As long as you meet the specified input voltage AT THE CHARGER you are good to go. Most factory 7 pin trailer connectors can handle 40A-50A.
It's my understanding this is a motorhome, not a trailer. Page 10 of the linked manual clearly shows a connection to the positive post of the starter battery.
