K8MEJ
Owner, Off-Grid Power Systems
I have a 2x - 12v battery system in my RV that I put together myself. I am using EVE 280Ah cells and Overkill Solar 12v 120A BMSs. Very soon I am going to introduce two new 12v packs built with the same cells and BMSs. I individually top balanced the original two packs and then put them into service in a parallel configuration about four months ago. I will individually top balance each of the two new packs as I did before.
Questions:
Thanks in advance for the help.
Questions:
- Should I also top balance the two original packs again?
- Should I put all 16 cells into parallel and top balance all the cells before the final parallel configuration of all four packs?
- If so, is this something that should be done periodically?
- Is it safe to put all four packs into series and top balance the entire pack as one unit once each 12v pack is balanced? I'm not sure if the 4s Overkill BMSs can handle that voltage. The manual simply says "Complete assemblies can be connected in parallel or series." I have a bench power supply that I can program for the higher voltage, but can the BMSs handle that?
Thanks in advance for the help.