hi al
have 4 x 48v 100AN EG4 connected to Lynx Power in
My SOC says 100%, but physical batteries show less
The settings in the shunt are set to these values are they correct?
EG4 manual says this
Should I be setting Charged voltage to 54v?
What about tail current?
Thanks
Mark
From the manual....
9.2. Charged voltage
The battery voltage must be above this voltage level to consider the battery as fully charged. As soon as the battery monitor
detects that the voltage of the battery has reached this “charged voltage” parameter and the current has dropped below the “tail
current [21]” parameter for a certain amount of time, the battery monitor will set the state of charge to 100%
The manual also says to set it a little under the float like around 0.2 or 0.3v but there are many who will set it closer to the bulk voltage for lithium. About 0.6 or 0.8v lower.
Experimentation on your part is needed. You can start with the 54v and see how it triggers, then possibly adjust from there.
I have my charged voltage set to 56.2 and my EG4-LL batteries are working perfectly. I use 2.0% for tail current. I also set my Peukert exponent to 1.02. FYI, I've also had many discussions about the communication cable from the EG4 to the Cerbo GX. That connection will show the EG4 battery SOC correctly but if you have multiple batteries it does not combine the Watts and Amps from all the batteries. It will only show the Watts and Amps from the master battery. As a result I use the Smart Shunt for my battery monitor instead of the EG4. I also max my charge current to 70a on my Quattros and max it on my charge controllers too. I discovered that it divides that current between my 4 batteries equally so I really won't go over the charge current recommendation for each EG4.
