Plug in and don't worry. The internal BMS on the LION Energy Safari batteries will manage any disconnection. Your converter may not be able to provide high enough voltage to get the batteries to 100% SOC but instead of thinking of that as a negative look at as you just increased the life of your batteries by operating them below the 100% threshold.
2015 Volvo VNL780 D13, iShift, 32k ET air hitch, Idle Free LiFePO4 APU
16.8KWhr LiFePO4, 2.52 kw solar, 10kva Victron split phase