After my recent attempts at testing the range of the BMW i3 94Ah achieved 130 miles and 150 miles per charge I decided to go all-out for a final ‘ultimate’ test and see if I could reach 200 miles on a charge, something of a milestone for any electric car.
The method was the same as ever; commute to work for 4 days in a row driving 40 miles each day for work plus an additional mileage up to 10 miles each evening for family trips. This time I used Eco Pro+ Mode which limits the acceleration, the climate control system and the top speed. Moreover I made a lot of use of the cruise control set to 37mph for the faster stretches of the route, but 27mph wherever I could (e.g. passing through villages). Towards the end of the test I used the 27mph limit most of the time.
After two days, halfway through, the car was teasing the possibility of 200 miles on the charge, with 100.3 miles achieved and only 49% battery used. After the third day, however, it wasn’t looking quite so good with 147.2 miles achieved on 74.5% battery used. I believe this was largely my fault as during the day I had ‘shown off’ the i3 to a colleague, including demonstrating its acceleration, and that had cost me precious range.
And so it was that I failed. At the end of the fourth day, using up the last remaining bit of charge driving around a loop near my house, the range display changed from blue to orange and instead of showing a projected range it read ‘low mi’. I finally gave up and let the car drive down the local hill to home once the battery charge read 0%.
After 4 days driving on a single charge the i3 had achieved 196.3 miles of range, with a displayed efficiency of 4.9mi/kWh. I had failed to achieve the intended 200 miles. So near and yet so far…!
Given how long the test had taken, and how slowly I had had to drive to achieve the mileage, I currently have no plans to repeat it (at least not this year, perhaps next summer).
So I lay down the challenge – who is going to be the first i3 94Ah BEV driver to achieve 200 miles on a single charge?