I took my 2014 i3 in for a battery capacity check and BMW added capacity to my battery - BMW i3 Forum
BMW boosts battery capacity of MY2017 i3 to 33 kWh with higher energy density Li-ion cells; up to 114 miles combined cycle range - Green Car Congress
![BMW i3 gets a 100 kWh battery pack for 435 miles of range as a proof-of-concept by Lion Smart | Electrek BMW i3 gets a 100 kWh battery pack for 435 miles of range as a proof-of-concept by Lion Smart | Electrek](https://electrek.co/wp-content/uploads/sites/3/2018/09/BMW-i3-Lion-smart-e1536332568109.jpg?quality=82&strip=all)