I upgraded my ESS grid tied system from 24V to 48V
New CAN interface battery and Multiplus II
All went OK and battery power applied before anything else
I checked the MPPT (150/45) via Bluetooth and it still showed 24V, I had to select 48V and type in a code to confirm
Also MPPT was still showing 27.6 for Absorption - had to manually change that (and Float)
Is this expected behaviour ?