DC/DC question

cottonmouth

I looked through several previous projects and have a question. I recently replaced my original agm’s with a LiTime 230. I’ve decided to add a victron 18 amp charger using the 7-pin connector. I saw a couple of different options here. One simply took the incoming 10ga wire from the7-pin where it connects to the power converter for the +input and then a a wire from the +output to the PC. They ran a wire from the -input/output to the bus bar ground and were done. 

The other method was similar, but used the white10ga ground from the 7-pin to the -input and ran a new wire from the -output. They also mentioned a need to run a new wire for the electric brakes, but I wasn’t following the need for that when I looked at the schematic. 

donmontalvo

Can you post a link to the schematic?

cottonmouth

I couldn’t figure out how to link to the thread. The title is “Victron dc-dc charger” from April 2023. There are only 10 or so comments in the thread. 

Bayliss

@donmontalvo, this is the discussion referenced by @cottonmouth:

https://tab-rv.vanillacommunity.com/discussion/17053/victron-dc-dc-charger

cottonmouth

Here’s the link to the other method that Dutch061 describes:

https://tab-rv.vanillacommunity.com/discussion/14772/400-dc-dc-mods