Connect the controller using a usb cable.
Open a serial terminal to the controller, reboot it and press space bar when it powers up.
You can then select a new WiFi hotspot
Hello all,
Not sure if this is the correct place to post this, so apologies if Iāve got it wrong!
Iām looking at using diyBMS with an 18S LiFePO4 setup, itās 4P totalling to about 840Ah off the top of my head. Itās going onto a Victron setup with a Multiplus 10000VA inverter, smart solar MPPT and Cerbo GX.
My question is, should i use just 1 module/slave board for all the 4P cells, or divide them in two or four and have multiple module/slave boards, for the paralleled cells.
Secoundly, I assume diyBMS is happy integrating with victron Cerbo? And if so, should i add a separate contactor for the batteries or is this not necessary normally?
Thanks!
Why 18S? Typically people use 16S and thatās what the diybms all in one monitor board is for - monitoring 16 cells in 1 module.
Because the batteries are in modules of 6S that canāt easily be divided up as theyāre welded tabs. Iāve only just arrived at this installation but Iām rather worried itās all too high voltage for the victron systems. I suppose that would put an absorption voltage of about 65V. Is that too high for victron stuff, Iāve not worked with Victron before. Itās a 250/100 MPPT.
This is far from the only 18s Victron system out there. As long as your solar array yields higher voltage than the batteries, youāre all good.
The MPPTās data sheet says that its āequalization voltageā is 64.8V by default in a 48V system, which is perfect when you have 18S of LiFePo4 (3.6V per cell).
Ok thanks, iāll give it a go seeing as itās what we have. Back to the original question, would it be recommended to run parallel module boards or just one per parallel bank?
Secondly on Victron integration, is diyBMS generally rather happy with this? Any need to run a contactor inline with the cells or not really
Thanks!