I have my BMV relay set to activate a Cyrix LI-CT (not the LI-charge) based on leisure battery charge level.??It is only able to charge once the battery drops below a certain point and then cuts off when it¡¯s full.??This does change the battery icon range unfortunately, so that shows empty at a low discharge level but the % gauge is still ok.
On 8 Aug 2021, 03:53 +0200, Steve via groups.io <seaweedsteve@...>, wrote:
I'm back in my van and now I see the issue I have with my setup.? ?I use the BMV 702 relay programming to manage the Cyrix. Li-charge.? ? I like having control from my phone and the ability to manually open and close the relay depending.? ? ? ?So, I have found that with my vehicle, if I set (the BMV-702)? relay to close at 13.4 volts coming from the starter battery then it connects the Cyrix charging when my engine is on and the alternator is putting out some volts.? ?But I then have to set it to 13. 3 or lower to open the relay back up when the engine shuts off.? Problem is, sometimes the starter battery has that surface charge and when I shut off the motor it stays above 13.3, stays closed and the starter is actually sucking charge from the house battery.? ?And the other day, I actually plugged in my solar before the relay opened and it just stayed closed all day, effectively over charging the starter battery.? ? I can't really set my parameters any lower or it won't charge from the alternator.? ? I guess the easy thing to do would just be to wire the Li-charge to an ignition on? wire tap like the original relay does.? But I would lose control from the app for times when I want to do some custom management.?
