Interesting number...Fully charged 10KWh pack (uses ~ 12KWh to recharge when very low, killwatt), about 16 months since installation, required 3.7KWh to recharge after sitting for 16 days.
Yes thats a very large discharge. My guess would be the BMS or cell logger or similar device. If you have a cell logger yank that thing out as it can be a fire hazard and can unbalance the pack. I could say the same thing about a BMS but thats a whole different topic.
Not sure I have a cell logger, I did leave the rocker switch for the pack on, figuring that a balanced discharge would be better...BTW, my 12V battery required a jump as well...Robb has changed BMS' since my install, saying that the elithion unit I have can be flaky, though if working should leave it.
If money is not a serious object, I would swap the Elethion BMS for an ORION Bms for a longer lasting PHEV equipment
