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
If this is a motor home doesn’t it have the solenoid that switches between chassis chargIng and alternator to starter battery charging? That is how my Renogy is hooked up. Except I used an ANL fuse instead of a breaker.
And it looks like this. The LiFePo4 batteries are below the dc to dc converter.
This means the positive input to the dc to dc piggybacks on the solenoid connection and does not go all the way to the starter battery. And the negative on my install does go to the chassis ground not back to the battery. It works when connected this way. Even though the install diagram does show a direct connection to the battery before grounding.
But I’m sorry I think I misread the problem. Why is the install 15 ft from the chassis batteries? I read it as 15ft from the starter battery. So definitely need a positive wire to the chassis batteries on the output side. And it seems the negative ground would also work for the negative as long as the batteries are properly grounded.
And it looks like this. The LiFePo4 batteries are below the dc to dc converter.
This means the positive input to the dc to dc piggybacks on the solenoid connection and does not go all the way to the starter battery. And the negative on my install does go to the chassis ground not back to the battery. It works when connected this way. Even though the install diagram does show a direct connection to the battery before grounding.
But I’m sorry I think I misread the problem. Why is the install 15 ft from the chassis batteries? I read it as 15ft from the starter battery. So definitely need a positive wire to the chassis batteries on the output side. And it seems the negative ground would also work for the negative as long as the batteries are properly grounded.
