The whole battery efficiency principles are standard regardless of the application. You’re right though the GOM is more about calibration than how efficient the battery is. The BMS should look after the battery and protect it against rapid discharge and charging and ensure it operates in the right temperature band. Also why it limits the CCS charge to 50kw and the AC to 7kw and why Tesla can keep issuing updates that allow the BMS in their cars to extend the range further. It would be nice to think that BMW will do the same with the mini but as it based around i3 technology I doubt that will happen! But we live in hope.I think it’s more about calibration rather than efficiency, the charge discharge helps the battery and GOM be more accurate.
I am glad you posted this, been racking my brain all week as I could not seem to figure out two situations
1. We took delivery of car last Thursday and it showed 118 miles range, by the Saturday we had done a small qty of miles but could not figure out why after taking miles driven from the range that we had a gap of 29 miles
2. I took car to one of those super super “instavolt” super fast chargers to treat the car as we don’t have the outside charger yet
the machine showed 98 % charge and on the clock I was at 102 miles, consumed 23 KW to charge, to this day I cannot figure out two aspects
1. why it needed say another 8 Kw of energy to get it to 100 %
2. That even if I put another 2 % in, why it was nit any where near what mini say about the 145 miles
temperature was 5 degrees
still baffled by this
The Mini is showing a piss poor range at the moment due to the cold weather. I know that if I actually use the car it will do better than the shown figure, but it’s worse than I thought it would be. Still it’s more than I need.
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