What am I doing wrong , getting into bms and trying to change 90ah Agm to 110a lead acid  and stepping through no probs but not accepting it, after saying no to pen manufacturers it just steps though and no change of details asked for, is it supposed to work out the current of new battery or should I be inputting it ???

Tags: BMS, , battery, , bmw,,mk808

 Just found a video on YouTube where another guy couldn’t use the f2/f3 functions either to either change the amperage (f2) or agm to lead acid (f3) 

 i got a call from support last week and the guy on the phone tried telling me for ten minutes this wasnt possible even with me telling him its an option on my device and i can see the F1 F2 F3 commands in front of me.He eventually gave in and said they would need to remote into the unit to see what im talking about.surley they should have either knoledge or pdfs of all the screens and funtions if they are tech support.They could call me friday as agreed as out of the office and they cant dialll mobiles...