blamblam
Posts: 7
Joined: Sat Apr 03, 2021 5:59 am

Re: i3 HV Battery Upgrade

Mon May 03, 2021 3:20 pm

I’d be interested in that battery upgrade.

I would keep my REX. I love it! No broken or seedy charge areas, lots of petrol shops still around, no need for level 2 charge.

Zincaplexy
Posts: 1
Joined: Tue Jun 15, 2021 11:21 am

Re: i3 HV Battery Upgrade

Tue Jun 15, 2021 11:28 am

I'm thrilled that this is being seriously considered. I definitely would buy this type of upgrade for at least one i3 (2015). 40Kwh most likely, but also interested in larger batteries. If this becomes a reality it would probably prompt me to buy a BEV i3 which is otherwise problematic for non-urban driving in the PNW. BMW's failure to update this otherwise excellent design makes this an incredibly attractive proposition for those of us who normally own a car for a decade or two.

geekbrit
Posts: 1
Joined: Wed Jul 07, 2021 5:54 am

Re: i3 HV Battery Upgrade

Wed Jul 07, 2021 5:58 am

I'd buy the 40KWh pack today. I'd have to think about the larger packs, but they're not out of the question.

crazycanuck
Posts: 1
Joined: Wed Jul 28, 2021 9:29 pm

Re: i3 HV Battery Upgrade

Wed Jul 28, 2021 9:35 pm

I like the 40/69/90 kWh options. All seem good. Keeping my REX though as Canuck-land is a big place. East coast USA is drivable for me so works well.

andrealevine71
Posts: 1
Joined: Thu Jul 29, 2021 3:34 pm

Re: i3 HV Battery Upgrade

Thu Jul 29, 2021 3:37 pm

i'm interested, but i'm in austin texas :(

smaster553
Posts: 6
Joined: Mon Jul 26, 2021 8:57 am

Re: i3 HV Battery Upgrade

Sat Jul 31, 2021 6:02 am

I would be interested in the 90kW to increase range to 300+ miles. Question is this being a lighter car how come this car has same range (for the same size battery) than a heavier car. Is it something to do with how they manage it.

alohart
Posts: 2403
Joined: Sat Nov 01, 2014 7:36 pm
Location: Honolulu, HI

Re: i3 HV Battery Upgrade

Sat Jul 31, 2021 11:29 am

smaster553 wrote:
Sat Jul 31, 2021 6:02 am
I would be interested in the 90kW to increase range to 300+ miles. Question is this being a lighter car how come this car has same range (for the same size battery) than a heavier car. Is it something to do with how they manage it.
A 90 kWh (not kW which is power, not energy) battery would be extremely heavy for an i3 using the most energy-dense cells currently available. The i3's tires, suspension, and maybe brakes and wheels would have to be upgraded to support the additional weight. So this would be a very expensive upgrade even above the cost of the high cost of a 90 kWh battery pack.

Weight doesn't affect the range of an EV as much as it does an ICE vehicle because an EV's regen can be stronger with additional weight during urban driving, and weight doesn't have much effect on the highway range of any vehicle. However, highway range is worse for vehicles with poorer aerodynamics like an i3. Our i3 has been driven in urban and suburban settings almost exclusively since we bought it in November, 2014. Its lifetime efficiency is 5.2 mi/kWh which would be difficult to match for most EV's due to their heavier weight.
Aloha,
Art

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

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