I have a 2019-20 Onan 5.5 GEN set. I just installed a BMV-712, a CCGX and Multiplus 12/3000/120-50 120V. I have done a lot of research on this site but I’m wondering if my generator is newer and I do not need to install two separate relays like what was needed in the past. I’m not electrician and I am trying to learn. I have a pretty decent idea on how everything works but I do not know exactly what wires needs power, how long and when they need power. On my GEN set I have a start wire that is (red) and a stop/prime wire that is (green). Obviously The green wire needs momentary 5sec power to prime the fuel pump. Then the red wire needs power to start. I have tested both green and red wires and when the generator is running they are both powered up with around 11.7 V. I have a Lippert one control system that is a fully functional generator auto start feature. However now that I have lithium batteries my Lippert system will not recognize a linear voltage drop because my lithium batteries will maintain a high voltage charge status. So the only way to trigger a generator auto start is through my battery state of charge via my battery monitor or CCGX. Does anybody have experience with this situation? If so can you please explain to me what I need to buy and how I need to wire it and set it up?
