I have installed Victron mppt 30 amp solar and victron dc to dc 30 amp charger with two battleborn lithums.. I was able to program the 712 on my Iphone with no problem...but the 712 just scrolls continuously ...do I have to program the 712 also or do I just rely on the Iphone for readings ? Iphone picks up mppt and dc to dc charger fine...thanks for any input