Sorry But I was unable to find an answer to my question after doing several search's..... I have read and I have reread both Trophy 48V 100AH and EG4 3000 setup guides and I am still a little confused. I wished I had done more work before buying, I realized only after I got them that they didn't have inter communications....I love the trophy but for simplicity I probably would have gone with EG4 Battery's with communications. MY question is What communications Menu items are needed to be changed on the EG4 to insure the EG4 charges and discharges the Trophy battery and does the trophy menu need changing?