Billy, I’ve never used it but during the Amel training, I was told it comes on at 70% state of charge.  One issue is that it will always run the generator for 2 hours once it is triggered.  Shutting off the generator doesn’t avoid the two hours.  Cheers. Joerg 

Joerg Esdorn 
A55 # 53 Kincsem
on the hard in Vigo, Spain