« on: April 12, 2021, 12:45:23 pm »
Update on installing my Lithium system:
I needed to replace my AGM batteries when it became noticeable they were not holding a charge. After review of the literature and speaking with other RV owners I elected to go with the Battleborn Lithium batteries.
In addition to the Lithium batteries I replaced by Parallax 5300 converter with a Progressive Dynamic PD 9100 L specific for charging Lithium batteries. In order to swap out the Parallax converter I did have to install an outlet. The Parallax converter was hard wired the Progressive Dynamic is a plug in.
I also swapped out my Midnight Kidd solar controller for a Victron 100/50. I anticipate in the near future of adding another solar panel, which is why I did not choose the 30 amps.
Several months ago I added the Victron BMS 712. This has been very helpful providing information on my previously installed AGM. Battleborn did walk me through the new settings when I added the Lithium batteries.
The question I was unsure of:
Does one need a dc-to-dc charger? I was able to talk with Ed,the electrician at Phoenix Cruiser. He felt that it was not necessary to add a dc to dc charger and that the present wiring to the solenoid along with the heavy duty alternator they install was sufficient to provide enough amps to the Lithium batteries to keep them fully charged. Ed has met with the Battleborn representatives asking many questions to include the dc-dc charger.
So for now, despite having ordered the Victron Orion dc-dc charger, I will hold off installing it. We have a trip planned for the midwest coming up in a couple of weeks. I do have an appointment at the factor for some other work. When I am there I plan to talk with Ed again providing him an update how well the present system charges the Lithium batteries from the alternator.
Any thought? It still makes sense to me to install a dc to dc charger especially the Victron which provides a 3 stage charge to the house batteries. But for now will hold off.