Firstascent
Solar Enthusiast
- Joined
- Mar 7, 2020
- Messages
- 265
I have a Batrium as my BMS and they only support their shunt (shuntmon), which I do have. I also have Victron Multiplus II inverter with the Lynx Distribution including the Lynx shunt. Originally I was trying to setup the Batrium shuntmon circuit board to the Lynx Shunt block directly, admittedly I want to use the Lynx shunt for aesthetics.
I’ve gotten this setup to work somewhat close but it’s not as accurate as the Batrium shunt by itself or the Lynx shunt by itself.
so then it got me thinking that maybe I’m thinking about this the wrong way. The shunt’s purpose is to give me SOC data, my BMS is not my charge controller, I have the SmartSolar MPPT along with the charge settings directly in the Multiplus II as well for that.
Without the Batrium shunt, the Batrium BMS can still fully track each cells voltage and temperature and therefore can do any tripping/alarming that it’s meant to do anyway. Now, it does get the full pack voltage through the shunt wires, I would probably want to track total voltage (12v system) for critical lows as well correct? I’m sure I can still get pack voltage back to the Batrium without the shunt somehow if needed.
the Victron equipment would of course have SOC and pack voltage for normal charging/discharging, but my understanding is the BMS is my fail safe and isn’t needed under normal circumstances, it’s there for when other processes fail.
what do you guys think, am I missing something or is this an easier solution than I thought this is my first build so definitely still learning.
-Jaime
I’ve gotten this setup to work somewhat close but it’s not as accurate as the Batrium shunt by itself or the Lynx shunt by itself.
so then it got me thinking that maybe I’m thinking about this the wrong way. The shunt’s purpose is to give me SOC data, my BMS is not my charge controller, I have the SmartSolar MPPT along with the charge settings directly in the Multiplus II as well for that.
Without the Batrium shunt, the Batrium BMS can still fully track each cells voltage and temperature and therefore can do any tripping/alarming that it’s meant to do anyway. Now, it does get the full pack voltage through the shunt wires, I would probably want to track total voltage (12v system) for critical lows as well correct? I’m sure I can still get pack voltage back to the Batrium without the shunt somehow if needed.
the Victron equipment would of course have SOC and pack voltage for normal charging/discharging, but my understanding is the BMS is my fail safe and isn’t needed under normal circumstances, it’s there for when other processes fail.
what do you guys think, am I missing something or is this an easier solution than I thought this is my first build so definitely still learning.
-Jaime