Today I went on a drive to check the cold-weather range of my 2017 i3 Rex. When I started, the stated range was 73mi battery/46mi Gas, with a full battery and tank. I recently coded the car to turn on the Rex at 10 percent, as shown by the little triangle in the first picture:
After driving 58 highway miles, the battery had dropped to 7.5% and a battery range of 4 miles-- but I hear no Rex and the gas side of the gauges still grey (not "lit up"), so I exit the highway and park. After a few minutes parked I observe that the gas gauge is "lit up," but the rex is NOT running (no sound, no exhaust.) The battery SOC keeps dropping:
All I can think to do is to force the Rex to turn on so I can get enough battery capacity to get me to a charge point a few miles away. So I do the "emissions inspection test" and the Rex turns on and runs for 20 minutes. Unfortunately this does little to improve the state of charge. So I set off for the charge point in Eco Pro+ mode. The first charge point fails to connect. On the way to the 2nd charge point I observe that the Rex is running and seems to be keeping the SOC between 5.5 and 7 percent. I charge the car to 15 percent and head home on back roads using the "hold state of charge" function already coded into the car when I bought it. By the time I get home (18 more miles) the SOC is at 12.5 percent. So the "hold SOC" function isn't really doing its job. That 18 miles was at 40-45 mph on level terrain, so the Rex ought to be able to keep up, shouldn't it?
And why isn't the Rex kicking in at the 10% threshold that it has been set to?
Any insights on this are appreciated! I am still a newbie to the i3 (1 month.)
Chris94
After driving 58 highway miles, the battery had dropped to 7.5% and a battery range of 4 miles-- but I hear no Rex and the gas side of the gauges still grey (not "lit up"), so I exit the highway and park. After a few minutes parked I observe that the gas gauge is "lit up," but the rex is NOT running (no sound, no exhaust.) The battery SOC keeps dropping:
All I can think to do is to force the Rex to turn on so I can get enough battery capacity to get me to a charge point a few miles away. So I do the "emissions inspection test" and the Rex turns on and runs for 20 minutes. Unfortunately this does little to improve the state of charge. So I set off for the charge point in Eco Pro+ mode. The first charge point fails to connect. On the way to the 2nd charge point I observe that the Rex is running and seems to be keeping the SOC between 5.5 and 7 percent. I charge the car to 15 percent and head home on back roads using the "hold state of charge" function already coded into the car when I bought it. By the time I get home (18 more miles) the SOC is at 12.5 percent. So the "hold SOC" function isn't really doing its job. That 18 miles was at 40-45 mph on level terrain, so the Rex ought to be able to keep up, shouldn't it?
And why isn't the Rex kicking in at the 10% threshold that it has been set to?
Any insights on this are appreciated! I am still a newbie to the i3 (1 month.)
Chris94
