Long time lurker, first time poster.
Last week, I picked up a 2015 i3 with 33k miles on the ODO here in Phoenix. I have a 2015 Model S (which is soon to be sold and a 3 in it's place) that my wife and I share and I wanted an EV for my daily commuter into work. I love the interior of the i3 and while I have never owned a BMW I am a fan of their engineering. My comute is 49 miles round trip and I figured that even with a used i3 with 10% battery degradation (side note my tesla has 4% degradation after 68,000 miles) and with the over estimated EPA range I would have more then enough range to get me to work and back home every day.
Friday was the first attempt at the 49 mile round trip commute and i made it home with only about 5 miles left on the ODO.... not what I was hoping for. Today I decided to do a range test going from 100% SOC down to near 0%, recording the consumption and range and then calculate the used kWh and determine how much degradation this i3 with 33,000 miles had on it from the original usable 18.8 kWh. Using the tools at my disposal, it looks like my i3's battery has degrated about 21% and is now sitting at or near 14.84 usable kWh.
Here is a spreadsheet with my calculations.. I plan on attempting this experiment every 45 days or so and see how the battery is doing.
https://docs.google.com/spreadsheets/d/1K3tfxXNBYDHnIroQKyG0R_G3-q9Es_fJ3cbE8AB8eZI/edit?usp=sharing
I love the car but 20% battery degradation seems a bit extreme, part of me hopes that it gets up to 30% so I can deal with BMW but the other part of me wishes I could have a car with more range than ~54 miles.
Any thoughts?
Last week, I picked up a 2015 i3 with 33k miles on the ODO here in Phoenix. I have a 2015 Model S (which is soon to be sold and a 3 in it's place) that my wife and I share and I wanted an EV for my daily commuter into work. I love the interior of the i3 and while I have never owned a BMW I am a fan of their engineering. My comute is 49 miles round trip and I figured that even with a used i3 with 10% battery degradation (side note my tesla has 4% degradation after 68,000 miles) and with the over estimated EPA range I would have more then enough range to get me to work and back home every day.
Friday was the first attempt at the 49 mile round trip commute and i made it home with only about 5 miles left on the ODO.... not what I was hoping for. Today I decided to do a range test going from 100% SOC down to near 0%, recording the consumption and range and then calculate the used kWh and determine how much degradation this i3 with 33,000 miles had on it from the original usable 18.8 kWh. Using the tools at my disposal, it looks like my i3's battery has degrated about 21% and is now sitting at or near 14.84 usable kWh.
Here is a spreadsheet with my calculations.. I plan on attempting this experiment every 45 days or so and see how the battery is doing.
https://docs.google.com/spreadsheets/d/1K3tfxXNBYDHnIroQKyG0R_G3-q9Es_fJ3cbE8AB8eZI/edit?usp=sharing
I love the car but 20% battery degradation seems a bit extreme, part of me hopes that it gets up to 30% so I can deal with BMW but the other part of me wishes I could have a car with more range than ~54 miles.
Any thoughts?