Xantrex Echo Charge
After playing around with a few different systems I ended up with a Xantrex Echo Charge charging a 12A AGM battery.
It only charges the battery when the bus voltage is above 13V.
I have a hall effect current sensor on that wire, it typically starts charging at 2A and then after about 20 minutes it's down to 1A and after a while it drops to 0.
This thing isn't very small (it's made for boats) and it weighs around 1lb, but it works great.
Palm City, FL
2014 RV-10, N311LZ - 650 hrs
OnSpeed development team