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BMW i3 I01 (2014 - Current)
The BMW i3 and BMW i8 are the first two cars launch under BMW's new sub brand BMW i. The i3 is an all carbon fiber, all electric vehicle meant for urban mobility.

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Old 05-19-2016, 05:49 AM
ky_soldier ky_soldier is offline
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i3 losing power

Curious if anyone here has seen this?

http://mobile.reuters.com/article/us...urce=flipboard
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Old 05-19-2016, 02:57 PM
jadnashuanh jadnashuanh is offline
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Old news...

Under some circumstances, the 34Hp of the REx cannot keep the 170hp electric motor running at full tilt (why anyone is surprised at that, is beyond me). If you ignore the warnings that the battery charge is getting low and do not stop to recharge, or continue on at the full rate (typically, high speed while climbing a long grade), surprise (not!) you'll run out of power, and the car will go into limp mode, radically reducing how fast you can go (when was the last time you drove a car with 34hp?). It's far safer than running out of fuel on an ICE where your power steering and power brakes also die at the same time.

The REx can keep up if you're driving up to about 70mph while on the flat, but throw in a major headwind, incline, headlights, radio blaring, climate control at full tilt, and surprise, it cannot. Any of those excesses try to come from the battery, and it can only recover when the load goes below what is currently being used, but extended use of full power when you've reached a critical point in the battery charge, you will slow down...quite rapidly, but not unexpectedly if you can read the warnings that have been displayed to you for awhile telling you it is coming.

Contrast that with something like the Chevy Volt, where the ICE has about 3x the power available, and the situation isn't anywhere near as radical. You still might slow down, but it's falling back on 80+hp depending on the year, verses 34hp.
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Last edited by jadnashuanh; 05-19-2016 at 03:00 PM.
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Old 05-20-2016, 11:27 AM
Epiplatys Epiplatys is offline
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It actually gets worse!

once you run out of electrical power and gas in the tank, the car freaking stops!
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Old 08-06-2019, 05:37 AM
darkrider darkrider is offline
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Quote:
Originally Posted by Epiplatys View Post
It actually gets worse!

once you run out of electrical power and gas in the tank, the car freaking stops!
How that?! unbelievable !!
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