Orion-Tr Smart Non-Isolated DC-DC Charger | Bluetooth (17A to 30A)

nice unit. instructions not very useful- ambigous, not clear simple english. not simple set up.- no opportunity to set up until fully powered and phone works w app. but instructions caution to not connect until set up, but cant set up until connected???? had to fully connect and power up to set up. unclear how to set up power to specify an alternator voltage, just gotta let it run at whatever voltage it wants....hope it doesnt overwork/ fry alternator.