Fantastic video! Great information! I too am interested in this device but Onan R&D has come up a bit short it appears... The threshold for keeping the gateway/app active and the temp control issues are keeping me on the bench for now. There absolutely should be a high temp/low temp control point and the programming should allow for a cool down period once the low temp is achieved. Sub'd to your channel in hope of an update video....provided Onan listens to their customers.. Thanks!
I hope to get with Onan R&D to discuss my recommendations. The unit is still usable once you understand how it works, that’s why I did the video. I was mainly concerned with temperature control as I have solar to keep batteries charged. A few software tweaks and this could be a solid system.
Installing now and wanting to do the same but slightly different config between two batteries... but sounds like same issue which is grrrrrrr bad... I think. [Onan 4K EVAP Generator + EC-AGS+] I want to START the generator with my 12V RV battery (AGM with 450 CCA), but want the trigger battery to be SOC of my 48V EG4 system battery bank. I am not using my generator for RV inversion power... but to connect to EG4 Chargeverter connected to power my EG4 48V battery bank (5.12kWh x2). With what you found... I'm wondering/researching if can use wire(s?) from EG4 3K inverter dry contact to the EC-AGS+ to then use Red wire connected to 12V battery to start the Gen. Phewwwww.... I don't know... we'll see. -Mike
That might work. I wish the lithium batteries or shunts would have an output that would mimic what a flooded battery voltage would be. So if Lithium is at 50% it would report 12.1 volts over a special output wire. This would eliminate a lot of problems when using many accessories. It seems like a simple function they could incorporate. It would help the built in battery monitors in most coaches read accurately when switching the Lithiums. It would help this gen start with the start on voltage feature.
You should be fine with starting the generator on a lithium. Your only challenge will be if you want to use the start on battery voltage option. You will need to determine when your voltage starts to drop on low state of charge. This is narrower than with a flooded/AGM battery. Hopefully you have a shunt that will show you the state of charge. This will help you figure that voltage out.
