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 updates i3 and i3s battery capacity and range - Electric & Hybrid Vehicle Technology International BMW updates i3 and i3s battery capacity and range - Electric & Hybrid Vehicle Technology International](https://www.electrichybridvehicletechnology.com/wp-content/uploads/2018/10/LEAD_P90320628-highRes.jpg)