longwaytim
Posts: 1
Joined: Sun Apr 04, 2021 5:44 pm

Re: Welcome to the BMW i3 Forum

Sun Apr 04, 2021 5:53 pm

Hey everyone, another future i3 owner here. I am really interested in learning as much as I can before purchasing a used i3. anything to avoid etc... My wife and I test drove a 2014 a couple days ago from a local EV dealer. That was the deciding factor for us! Up until the test drive, we only saw them around town. I hear that they improved in 2017? Can anyone confirm this? Look forward to learning more!

frictioncircle
Posts: 141
Joined: Fri Nov 25, 2016 11:23 pm
Location: USA West Coast

Re: Welcome to the BMW i3 Forum

Sun Apr 04, 2021 10:56 pm

longwaytim –

From the i3's launch in 2014 (late-2013 in the EU) there have been two major battery upgrades. A good browse of Wikipedia will answer many questions: https://en.wikipedia.org/wiki/BMW_i3

That said, (and as a BEV owner, the below apply to battery-only i3 cars, not REx models) here are the battery capacities you'll find as you shop for a used i3. Note that in 2019, the sportier i3s was newly offered for sale.

2014 – 22kWh battery (i3 BEV)
2015 – 22kWh battery (i3 BEV)
2016 – 22kWh battery (i3 BEV)
2017 – 22kWh battery OR 33 kWh battery (i3 BEV)
2018 – 33 kWh battery (i3 BEV & i3s BEV)
2019 – 42kWh battery (i3 BEV & i3s BEV)
2020 – 42kWh battery (i3 BEV & i3s BEV)
2021 – 42kWh battery (i3 BEV & i3s BEV)

If you share the general area in which you plan to drive, those here on the forum may be able to offer further suggestions – ambient temperature and elevation changes challenge EVs more visibly than gas / Diesel vehicles.

eXodus
Posts: 135
Joined: Tue Dec 22, 2020 6:06 am

Re: Welcome to the BMW i3 Forum

Mon Apr 05, 2021 2:46 am

frictioncircle wrote:
Sun Apr 04, 2021 10:56 pm

If you share the general area in which you plan to drive, those here on the forum may be able to offer further suggestions – ambient temperature and elevation changes challenge EVs more visibly than gas / Diesel vehicles.
try to run a Diesel on short routes in a cold climate. Get's half the mpg as advertised and destroys the engine very quickly.

Gas engine not so much. But I had many diesel - they like it well above freezing like EVs do.

alohart
Posts: 2339
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: Welcome to the BMW i3 Forum

Mon Apr 05, 2021 11:07 am

longwaytim wrote:
Sun Apr 04, 2021 5:53 pm
I hear that they improved in 2017?
The original 60 Ah (22 kWh) battery pack seems to lose capacity considerably faster than later battery packs. As a 60 Ah 2014 i3 owner, I recommend not considering any i3 earlier than a 2017 model if your budget allows. Even though some 60 Ah i3's were apparently sold as 2017 models, they seem to be very rare. If you find a 2017 i3 you like, verify that it has a 94 Ah (33 kWh) battery pack.

Early i3's were a bit more troublesome as well which is another good reason to avoid pre-2017 models, if possible. Problems were frequently associated with the REx system, so if your use case doesn't require the additional range of a REx, buy a BEV.

I would also avoid an i3 with the 20" wheel option. No winter tires are available for 20" wheels, they are more prone to tire and wheel damage if your roads aren't well-maintained, their summer tires seem to wear out a bit faster than the all-season tires on 19" wheels, and their ride is a bit rougher.
Aloha,
Art

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

jadnashuanh
Posts: 5196
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: Welcome to the BMW i3 Forum

Mon Apr 05, 2021 3:02 pm

Batteries age by the number of recharge cycles, so, over the same miles, a smaller battery will need to be charged more often than a larger one. A charge cycle is 0-100%, so ten recharges from 90-100% is still one cycle. IOW, plugging it in when you get home doesn't really hurt versus waiting for the SOC to drop more and you'll have full capacity when you get in. It helps if you can have it plugged in and set a departure time as that can prewarm the battery, and the cabin, so you then are using the line power to keep the battery level up, so you don't have to use the batteries alone, leaving with less than a full charge, or using it up getting things warm after leaving all from the batteries.

They all have less ability to push out electrons when they're cold. The chemical mix alters the actual values, but not the effect.
Jim DeBruycker
2014 i3 BEV, 2021 X5 45e
(The i3 will be sold soon, <17K-miles, interested?)

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