This is really two questions in one post, but they are related.
Question 1: Absorption Skipped in MPPT Firmware V3.15
I have a MPPT 250/75 Charge Controller and a friend of mine has a MPPT 250/100 charge controller. On both of our installations, when we install the V3.15 firmware the charge controllers skip absorption and go directly to float. We both reverted back to a previous firmware version (3.13 for mine, 3.14 for his) and the charge controller goes back to operating correctly.
I have seen this topic discussed in a different post as well (https://community.victronenergy.com/questions/272092/mppt-firmware-v315-charge-errors-rolled-back-to-v3.html).
Does Victron have plans to issue a new firmware update to correct this issue with skipping absorption?
Question 2: Mandatory Firmware Updates
As mentioned above, my friend reverted the firmware back to V3.14 on his MPPT 250/100 charge controller. However, when accessing the charge controller remotely via the Victron Connect app, he received notification of a mandatory firmware update and the app automatically updated the firmware back to V3.15.
Is there any way to block mandatory updates if we revert the firmware back to a previous version? Do we just not use the Victron Connect app until Victron releases an update that fixes this?
This installation is a 48V system using strings of 12V batteries, so repeatedly skipping absorption charge can lead to an imbalanced bank.
Thanks!
