Hi there. I have 6 24V batteries, 2 in parallel and 3 series for a 54V battery bank and I am trying to figure out how to set the solar charger correctly. My goal is to set it to 56.8V as recommended.
The issue is that the Lynx/Cerbo give me too low voltage readings. Currently they give me 53.8V but multiple (and good quality multimeters) indicate that in reality the battery is at 54.19V. Now, how should I setup the charger (for simplification without considering voltage drop in the cables)? If I set it to 56.8V at the charger, the battery bank it will never be full according to Victron, if I set it to 57.2 (to arrive at 56.8V according to Victron, then I may charge more than the recommendation.
How would you go about this?
Thank you and kind regards, Aurel
Do you have a Lynx Shunt, if so have a look at the thread below, it has the answer in. If it is a Lynx BMS then I do not think that option is there.
Voltage errors on the Lynx Shunt have been noted several times, not seen it reported on the Lynx BMS
Thank you! Yes, it is a Lynx BMS that provides the wrong voltage to the Cerbo. No calibration option there.
I mean I can work around it and offset charging values and just ignore the Cerbo readings and constantly calculate real values in my head… However, this is not really the point of having such a sophisticated system. The difference is so much that the Lynx might not be able to serve its purpose to protect the battery if everything fails.
If it is new then I would contact your seller for advise how to proceed / request a return.