Retrofitting a DC-DC Charger to a Sargent EC328
Edited
The diagram below details how you can fit an isolation relay and feed the DC-DC charger output into the existing sargent system.
Note, the D+ for the DC-DC charger may be labelled as "Remote" on Victron products, and the H-pin of this remote connector should be used. The small wire loop pre-fitted, must be removed.
Non-isolated DC-DC chargers should be used, if an isolated version is used, both negative connections must be combined.
