alohart
Posts: 1255
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: 2015 i3 Battery Degradation (20% after 30k miles)

Mon Jul 09, 2018 3:22 pm

sogorman wrote:The original usable capacity of the i3 battery as stated from BMW is 18.8 kWh of the actual 22 kWh. This indicates that there is 1.2kWh (5.45%) of SOC that is reserved by the BMS.

You might have meant to write 21.6 kWh - 18.8 kWh = 2.8 kWh, or ~13% of the total capacity reserved by the BMS.

sogorman wrote:Some of that is for anti bricking on the low end which would mean that "fully charged" is to your point not 100% SOC but closer to 95%.

Agreed.
Aloha,
Art

2014 BMW i3 Arravani Grey, Giga World, Tech + Driving Assist, Parking Assist, DC Fast Charging, JuiceBox EVSE

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