MikeS
Posts: 713
Joined: Thu Jan 16, 2014 8:29 am
Location: Brighton UK

What Range do you get with real world conditions?

Wed Sep 17, 2014 5:28 am

I’ve seen a few post on here about the great ranges some people have been getting but I’m interested in what the general every day/week experience is.

I have had my i3 REX for 2 weeks and despite some careful driving, including using the last full charge in ECO PRO, the ranges achieved have been disappointing. When I collected the car with less than 3 miles on it, the range indicator gave 72 miles with a full charge. It pretty much achieved that but no more. The next time after a full charge it showed something like 69 miles and now as I have just plugged the car after just driving in ECO PRO it it only shows 67 miles for a full charge! The statistics on the iRemote show 4.6miles/kw for the last trip and the ‘community’ 3.9 miles/kw.

I was not expecting to get 100 miles on a full charge but I was expecting nearer 80 to 90. I’m in UK so although the temperatures are higher than average (24 deg C today) its not extreme!

What is your experience?

P.S. Other than this, I think the car is fantastic. :)
BMW 3 Series 2005 - Aug 2014
BMW Z4 35i 2009 - Mar 2014
BMW X1 Mar 14
BMW i3 Sep 14

FrancisJeffries
Posts: 148
Joined: Thu May 15, 2014 12:47 pm
Location: Stevenage, UK

Re: What Range do you get with real world conditions?

Wed Sep 17, 2014 5:38 am

I've had my Rex for less than a fortnight, done over 900 miles, and loving very mile. I have found that the Rex mileage and battery mileage estimates are woefully pessimistic. On motorways, 70-75mph (indicated) I am getting 90-95 miles on Rex, despite it saying that I'll get only 72 miles! It's much the same on battery.
It's changed my strategy on long-range use of the car, which is much better than I'd dared hope.
I'm going to post report on a 700-mile Rex trip on this forum soon to explain.
Noteworthy cars I've owned previously: Lancia Aprilia ... 20kWh i3 Rex.

jelloslug
Posts: 226
Joined: Thu May 08, 2014 4:03 pm

Re: What Range do you get with real world conditions?

Wed Sep 17, 2014 6:18 am

Unless I drive like a maniac or leave the AC on all day long I can get at least 80 miles from the battery ever time.

amateurish
Posts: 102
Joined: Mon Dec 16, 2013 9:10 am
Location: MK, UK

Re: What Range do you get with real world conditions?

Wed Sep 17, 2014 6:19 am

I would say my average real world range when driving normally (not for economy) is 80 miles. This is on a mix of roads, driving at the speed limit. The range predictor is usually pessimistic - it normally predicts a 70 mile range for me in comfort.

PS if you are getting an indicated economy of 4.6 mi/kwh then that gives you a predicted range of 86 miles.

Chrisn
Posts: 136
Joined: Wed Aug 13, 2014 3:16 pm

Re: What Range do you get with real world conditions?

Wed Sep 17, 2014 8:22 am

My range is about 70 miles +/- 5 miles, depending on speed and driving style. The other thing I have noticed is that the ReX seems to always kick in with 2-4 miles of range remaining, and I am including that in my estimate (deduct 2-3 miles from your extrapolated range).

I tell people that 65 miles is a rock solid, "take it to the bank" range, even for fast/aggressive drivers. I personally have never gotten more than 80 miles of range before ReX kicked in.

I always drive in comfort mode and do mostly freeway miles where speed limit is 65MPH.

As an aside, as the novelty/thrill of dipping into the car's power potential wears off, I am finding that my range is improving...

noakey
Posts: 398
Joined: Mon Jan 27, 2014 8:11 am
Location: Swindon UK

Re: What Range do you get with real world conditions?

Wed Sep 17, 2014 8:24 am

At least 80 miles. .. the predictor gets more accurate as the battery depletes...

I usually achieve 4.6 to 5.1 m/kwh on my daily commute. . A mix of roads and staying within speed limits. Ac normally on all the time cos that's the way the car starts.

Best I had is 96 miles with 3 remaining. Phew. Made it lol.
Neil

BEV at 21,000 miles in first 16 months.
Average 86 miles per charge.
Best on full charge 112miles, worst on full charge 55miles
Loving every mile :)

MikeS
Posts: 713
Joined: Thu Jan 16, 2014 8:29 am
Location: Brighton UK

Re: What Range do you get with real world conditions?

Wed Sep 17, 2014 8:25 am

Thanks for your replies.

Strangely, the prediction in my car seems accurate and I have never got to drive more than about 70 miles before the REX kicks in. REX engaging at 6.5% is at best 6.5 km and more likely 5km so it seems I should get to drive about 75 to 90 miles given the replies so far.

Thanks specifically to amateurish for the comment about the indicated economy v range - I hadn’t thought of that!

I have a longer journey planned in a couple of weeks so Ill see how it performs then.
BMW 3 Series 2005 - Aug 2014
BMW Z4 35i 2009 - Mar 2014
BMW X1 Mar 14
BMW i3 Sep 14

Blue20
Posts: 186
Joined: Tue Jun 17, 2014 2:12 pm
Location: SAE Combo (CCS) Deadzone

Re: What Range do you get with real world conditions?

Wed Sep 17, 2014 10:26 am

When fully charged mine, the dashboard shows 120 km (74 miles) range. I usually charge my car before dropping below 50%. The overall consumption rate is 13.2 kwh/100km (4.7 Mile / kwh).

This is all in comfort mode with mostly stop-and-go city traffic. My area has lot of slop, this impact the efficiency as well.

ultraturtle
Posts: 439
Joined: Sun Dec 30, 2012 11:17 am
Location: Peachtree City, Georgia USA

Re: What Range do you get with real world conditions?

Thu Sep 18, 2014 5:56 am

After preconditioning, consistently getting 76 miles of electric range using Comfort mode in a REx, 65% at 75 mph, 35% stop and go 0-55 mph. Temperature ~ 75 for half of it, ~ 85 deg for the return (after baking in the sun). Guessometer consistently underestimates range.

MikeS
Posts: 713
Joined: Thu Jan 16, 2014 8:29 am
Location: Brighton UK

Re: What Range do you get with real world conditions?

Thu Sep 18, 2014 7:15 am

Interesting that we seem to be settling at a 75 to 80 mile range - a bit off from BMW’s claim! I wonder what we shall see in winter?
BMW 3 Series 2005 - Aug 2014
BMW Z4 35i 2009 - Mar 2014
BMW X1 Mar 14
BMW i3 Sep 14

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