SASSquatch
Well-Known Member
- Joined
- Feb 3, 2022
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- BMW i3s Ford C-Max Hybrid
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- Semi-Autonomous Yeti
You raise some valid points. The i3 REx limited when the range extender could turn on because they were trying to classify the vehicle as Zero emissions to meet strict CARB requirements. For those of us OG i3 owners, we know you can literally code the i3 (using a bluetooth dongle and an app) to basically do whatever you want.I get the sales pitch for newbies. Us EV OGs understand don't have that range anxiety, especially with the growing charging infrastructure. EREV are a compromise whose only plus is to promise folks that they will never run out of battery range. In the last 100,000+ miles of BEV driving, that never happened to me.
An issue for EREV, is that smaller batteries have a short range (100-150 miles of highway range) and gas motors are smaller and not super powerful. So, while generator extends battery range, it may not be enough to stop the battery from depleting on a long drive (the issue I believe with the i3 Rex), and then you're stuck with a gutless gas engine to move the car. So, one may still have to fast charge the battery after all. Obviously, OEMs can build an EREV with a more powerful gas engine, but then you're stuck lugging around a big useless engine most of the time.
I prefer lugging a larger battery and have the benefits of an EV 100% of the time. Again, to each his own. To me, EREV are a fad that will mostly disappear in 5-10 years.
When I use the i3 as a highway vehicle (in the rare instances I have had to do this) I can engage the range extender at 75% battery so that I'm not worried about the battery getting so low that the range extender can't keep up and you end up losing power which was a problem with the early i3s.
Modern incarnations of range extenders won't operate the way the early i3s did and they will have much larger fuel tanks (the i3 only has a 2.2 gallon tank). EREVs are far more efficient than hybrids and cheaper to build because you are reducing complexity (hybrids have redundant ICE/electric drive trains. EREVS are electric vehicles.
Until battery technology and charging infrastructure catches up to the point where the average consumer can expect ubiquitous, reliable, and fast L3 charging, EREVs are a bridge that helps range anxious consumers make the switch from a pure ICE or hybrid.
It is a perfect gateway vehicle because it exposes you to the benefits of an EV without compromising on range or worry about range anxiety.
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