New install. Victron LiFePO4 Ng 2@300 amps, 2 Lynx distributors, Lynx BMS Ng, Gerbo GX, Multiplus 2 12-3k-120.
The issue is; Multiplus is stuck displaying “low battery “.
What I’ve done to debug:
1)Updated versions on all devices and firmware on the Multi.
2)Swapped out the Multi 2 and charged the batteries with a Multi 1. No problems.
3)Ran the multi 2 on a bench with a lead acid battery, no problem.
4)Re-installed the Multi 2 in the system same issue.
When I restore factory settings all lights good.
When I set battery type to Victron with BMS low power light comes on multi is no good.
I’ve factory reset all items, checked and replaced all the cables, removed power from the batteries and cold started the system. No change.
The multi is good, the BMS is working properly and all cells in the battery are within range and only 0.01v off.
No error messages
What exact setting are you using that you’re calling “Victron with BMS”, and where are you seeing that setting?
A fairly common mistake is setting the unit to look for a VE.Bus BMS, which isn’t on the system and will therefore cause it to error.
In this forum we all have not seen a bms yet that can compete with the precision of the smartshunt. Nobody has experience with the NG yet, the cost of a smartshunt stands in no relation to the grand total.
That is correct, the GX device cannot be used for programming the Multi.
The reason I asked about the exact wording is that “Victron LiFePO4 with BMS” isn’t wording that appears in Victron settings that I’m familiar with, so the exact wording is good to establish so we know which setting you’re seeing. Most likely, as @pwfarnell has noted, you’ve chosen “VE.Bus BMS”, which will indeed cause the unit to alarm and shut down, as the Lynx Smart BMS NG is not a VE.Bus BMS.
