EG4 6000XP to non server rack batteries communication?

[jootts47]

Hello all ! Another newbie question. If I am using the 6000XP inverter, is there a system for non server rack batteries to communicate with the inverter being they don't have data ports for comms cables ? Thanks ahead of time for any and all help. Jeff

 

[HighTechLab]

If there are no communication ports on the battery, then it certainly can't communicate.

If however, the battery does have ports, and can be set for Pylontech protocol (many manufacturers use this protocol), then there is a chance you might be able to get it to work.

 

[EG4TechSolutionsTeam]

If a BMS communication port is not present on the battery, you will most likely need to place the inverter in lead-acid mode (user mode) which allows you to set the charging, discharging, and float voltages for the battery.



If it does have communication, the following list may be helpful: https://eg4electronics.com/wp-content/uploads/2024/04/EG4-6000XP-Battery-Compatibility-List.pdf

Lithium brand list:

0: Standard Protocol/EG4 RS485
1: EG4-LUX CAN/HINAESS
2: Pylontech/Shoto/UZ Energy
5: GSL1
18: Fortress
19: Sunwoda

 

[jootts47]

Thanks for the replies. How much is is the efficiency affected between the connected communicating battery vs one ran in the lead acid mode with the proper settings. Thanks Jeff

 

[ChrisG]

If you have custom built battery packs with JK, JBD, or SEPLOS BMS, you can get them communicating with EG4 inverters. Several methods out there.

 

[trad]

Communications with your batteries is not required but you need to babysit your system a bit more. For example you can buy 4 12v 100ah batteries and wire in series for a 48v pack. Set your inverter to lead acid mode. All you need to worry about is keeping the batteries in sync. As long as all 4 batteries charge and discharge evenly, you will be fine. However if the voltage of one battery starts to drift either higher or lower than the others, you will need to purchase a battery balancer that will eliminate this drift. I have 2 48v packs made of 4-12v 100ah LIFEP04 and one doesn't seem to drift, but the other one does drift a bit and I've installed a balancer on that one.

Regarding 48v batteries that just don't have comms for EG4, this is less of an issue as the BMS in the 48v pack should take care of the balancing for you if you charge to 100%. Set the lead acid charge voltage to what your battery recommends for 100% charge.

 

[jootts47]

Thanks so much for the help. How do you know when one of the batteries within a pack is drifting ? Do you have a monitor attached to each individual battery ?

 

[trad]

Yes, this one here. Watts247 48v battery balancer.