I have finally gotten the JBD relay 200amp version to work. You have to jumper cell wires to configure for the 16S and then the App on Android seems to work once you figure out how get it configured and unlocked. The App needs work in terminology Locked vs protected is the same thing. Once you lock the software then it was messy getting it to unlock changing between Driving Mode and Monitor Mode and turning Charging on and off to get it to unlock