Thanks for your details. I had to take out about 9 lead acid batteries a 240 volt 8000 watt pure sine inverter and level 2 charger, So in about 10 minutes should of had around 450-525 watt hours filled into it. *maybe less though since read somewhere that at low % SOC cv is lower compared to 4.0 v/cell when way low maybe 3.4v/cell for awhile, so maybe only 125 watt hours.
Took off the 1772 and hit the power on. And it had just enough energy that REX engaged so I put in drive while seated in it with seat belt connected every few minutes switching from drive to reverse and back and about 10 minutes later was above 6.0% got out REX shut off so I could put away all my charging stuff in other car.
Drove it to Chargepoint Level 2 charger put about 30 miles charge on it. Then I drove it towards home about 42 miles away. Since I had all the recharge stuff in my other car with son following me home if at worst point REX DIDNT START , had enough power about 12 kw hr useable in my fla battery bank, that I would just recharge along roadside. But while driving home at about 27 miles home REX kicked on as it should have. Got home hooked up Lev 2 Wall Charger filled up like it should have.
I found this article about 2014 with 60 AH & REX https://www.bmwblog.com/2017/04/17/bmw-address-issue-incorrect-state-charge-readings-i3/
Service bulletins B612016 and B612116 have been updated with a new procedure to perform an ISTA capacity adaptation test after programming (This is a new function in ISTA 4.04.3)
Mine must be mis-reporting bottom level SOC not compensating for capacity loss over 4 years now still thinking its new
Just glad even though was a real pain in the ass that my wife is recovering and got BMW I3 HOME WITHOUT GETTING IT TOWED FIRST.
Maverick Inventor -- Who has an interest in getting our world off of Oil based fuels -- to EV Use
2009 ZENN Low Speed Vehicle 72 Volt GEM Controller
2013 Ford Focus E-Hatch
2014 BMW i3 with REX 60 AH Battery