Hello,
is there any experience about adding an Peter Board or an James iBMS to a JK BMS in connection with a Victron System?
Greeting from Germany
Since you use the term “peter boards” you know this:
https://m.youtube.com/watch?v=wum7R8TiqJc
I only know the boards in Andy’s Off-Grid Garage.
Have Fun
Marc
or that one:
https://m.youtube.com/watch?v=waNjrxFlL1A
Again Andy’s Off-Grid Garage…
Thanks 
I’ve seen the videos from Andy’s offgridgarage 
But i guess, the original PeterBoard isn’t availible any longer. Just the James boards linked above are on the market.
@Ton_Gans What is the benefit using these boards additionally? Do the work properly? 
They work excellent.
The benefit is that my 6 bms can talk with the CerboGX.
Furthermore if you have HA, you can monitor your bms everywhere and can change parameters this way.
@Ton_Gans Thank for your experience
Actually i will build one DIY-AccuBox. But i think it possible that there will be another one oder two 
Is there no other way to connect two ore more EELs with CAN-bus like for ex. the Pylontechs?
If the eel batteries are using the jk inverter bms (what they normally do) you can interconnect them and use one (tha masters) can interface.
Have Fun
Marc
P.S. there is no need for any boards
you can even use the rs485 interface from the master and read the stuff via serialbattery.
https://github.com/mr-manuel/venus-os_dbus-serialbattery
Or you can connect the batteries individually…
So endless variaties without any board.
Have Fun
Marc
Hi!
What would you say is the functional difference between using dbus-serialbattery and a board like the James iBMS? I’ve heard explanations that the boards control your inverter. But couldn’t you do all that with HA?
Thanks in advance
Hello Peter,
Good question. Since I never used an additional board only my thoughts:
The algorithms to calculate CVL, CCL and DCL used by serialbattery are open source and well documented. You can adopt everything via the configuration file.
I don’t think you have this depth of information on the boards.
This is exactly what is done with serialbattery if you use DVCC.
I use HA but only as a data displaying tool;-) using mqtt. Works perfectly.
I hope this helps.
Have Fun
Marc
Yes, I think so! Thank you Mark