Good day,
because I design Off-the-Grid systems, the 130% over sizing option is very annoying, because I have to recalculate everything by hand.
Why?
I use in my systems SOPzS batteries which can run DOD80 @1500 cycles, hence the Battery Voltage can be low as 22,1V before the BatteryProtect or the Inverters shoot down.
If I use 5 Solarpanels 410W on series (32/38V, 12,8/14,5A) the MPPT Calculator recommended me the SmartSolar MPPT 250/70-Tr VE.Can but this will never work satisfaisant in nordic countries, where you need to capture any energy you get.
My own SmartSolar MPPT 150/70-Tr VE.Can is running from January to March always at its limit of 70A on sunny days.
Hence, with 1860Wp I can use even a SmartSolar MPPT 150/100-Tr VE.Can because the Charging current at 22,2V is 93A!
I herbly ask Victron to add an option to disable the 130% oversizing.
