For my sailboat I want to change to LiFePO4 victron battery
This means that new batteries will be charged by Smart BMS CL 12/100. This device will also the BMS.
I will also add Multiplus 12/1200 with Cerbo
the Smart BMS has no connection to the Cerbo GX
Hoe do I get the battery info into the Cerbo?
It seems Victron VE.Bus BMS V2 has this option
Do I need this to get the data?
Use of othe
You dont, because there is no battery info. The SmartBMS only controls charge current coming from the alternator, and provides two signals, ATC/Allowed-to-charge and ATD/Allowed-to-discharge, which can then be used to signal other chargers and loads if they are allowed to charg/discharge the battery. But there is no cell voltage or SOC info. The only other communication you get out of the SmartBMS apart from the two physical contacts is alternator/input voltage and charge current over bluetooth.
Its mostly the same for the VE.bus BMS (the NG might be different, i havent used that yet). You only get ATC/ATD signals, but this time not only physical signals but also over the bus to control an inverter/multiplus and also to control other chargers like MPPTs through DVCC. But, the DVCC CCL/Cahrge-current-limit will only be used as an on/off signal, theres no gradual control over the charge current. So basically, it offers two more ways to distribute ATC/ATD signals, thats it.
If you want an SOC for example you would need to use a shunt in addition to a VE.bus BMS for example, or use a Lynx BMS
Thank for your reply. Clear.
But how do I get the SmartLithium Battery data as shown in the Victron Connect app into the CerboGX
The baterry cell voltage and temperature is vissabel in the VictronConnect app
Yes, and thats where they only are visible. There is no connection possible to the Cerbo, the BMS, whether a SmartBMS or a VE.bus BMS do not transmit battery data, other than the two ATC/ATD signals.
Only the Lynx NG transmits individual cell voltages (and maybe the VE.bus NG)
Hi, clear.
That should not be to difficult for Victron to add to the eco system.
Anyone else to have suggestion or simple workaround fo get this data.?
Well they did by releasing the NG line of batteries
Theres an ESPhome project that allows you to read bluetooth data from an MPPT for example into HomeAssistant or whatever, without a Cerbo. Possible that this also works for reading out battery data
Thank you. Now I understand the shortcoming.
I remember this topic in the SignalK community.
They have already a plugin.
Thank you for bringing me the rigth direction
Bastiaan