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  Topic Review (Newest First)
08-07-2019 04:29 PM
Smart car Update on my minimum range.
Here in HOT SUNNY Phoenix now with the A/C on 38 miles range! That A/C IS AN ENERGY SUCKER!!!
I get in the car, 63 miles estimated, click on the A/C and it drops to 40, turn off the A/C and it goes back to 63.

I'm glad I don't use heat! it runs the range down in the low 30's for estimated range!
07-31-2019 04:43 PM
sokoloff My coupe also showed the 90 mile projected range yesterday after I drove it all day. Got to say though that the coupe is my wife's daily driver and she typically gets in the mid-70's on routine charges. I usually get in the mid to high 80's. We have very different driving styles. I take it as a challenge to see how much range I can get. I watch ahead of me and will usually drop it in to "N" when I see a stop/red light coming ahead. The free wheeling distance is amazing. Of course I watch my tail closely too to make sure that side of me is safe. If there isn't enough time and space to use "N," then I'll let the car do its own regen and use the actual brake as late as is safe. I will also pop it into "N" if it is safe to do going down hills. My speed rarely goes above 55 mph. I take the "country" roads instead of the highways when I have the chance.

Len
2014 EV Coupe 18,000 miles
2014 EV Cabriolet 13,000 miles
07-30-2019 10:43 PM
InjuredAgain
Quote:
Originally Posted by Rob22304 View Post
My projected range on a full battery never gets above the mid-70s. I'm able to achieve 80-90 total miles on a regular basis, sometimes even after short bursts with the AC on. This seems to be somewhat counter to folks having fully-charged estimates in the 90s and having the SOC cling to 100% for the first 5-10 miles. My SOC gauge drops quickly from 100 to 80 after a full charge.



Do I have an older or newer version of the software? A weird power profile on my battery? Free-floating anxieties?
Same here - the highest range I have ever seen projected has been about 73 or 74 miles. The longest distance we have continuously driven on one charge has been about 90 miles with about 15% SOC remaining.

Repeatedly using the battery to a lower SOC and then charging it back to 100% seems to result in a "fuller" charge in that regen is disabled for a longer period and the SOC hugs the 100% level for longer. We can consistently get to 80% having driven 20 or more miles but the interval from 80% down to 70% always goes quickly - even with identical driving conditions in a single continuous drive, that 10% interval never nets us more than 7 or 8 miles driven. The SOC seems fairly linear from there down towards at least the 20% mark, which is as low as we normally take it.

Also, if we drive it continuously from 100% down to somewhere in the middle 70% range and park it for some time, the SOC will always drop a few percent on the next restart. This doesn't happen to nearly the same degree elsewhere in the charge spectrum, and how much it drops when turned off varies depending on how quickly the battery has been discharged from 100% down to that point.

There's probably some rebalancing of cells that occurs at that point, or some readjustment of displayed SOC versus actual SOC. Or maybe the voltage profile of the battery changes as the cells rest/rebalance after continuous use to that point. Whatever it is, it is very repeatable.
07-30-2019 07:47 AM
MB DNA
Quote:
Originally Posted by Rob22304 View Post
My projected range on a full battery never gets above the mid-70s. I'm able to achieve 80-90 total miles on a regular basis, sometimes even after short bursts with the AC on.

Do I have an older or newer version of the software? A weird power profile on my battery? Free-floating anxieties?
Your MY14 451 ED is "rated" at 68 miles but it appears that your "city" driving is giving you some pretty good results!

As for software version - without M-B service records from the previous owner the only software information lies with your "local" smart Center and THEIR PROPRIETARY diagnostic equipment.

If you have a smart Center nearby it may be prudent to take it in and make sure all updates are in place as we suspicion that some HV failures may have been a software issue???
07-30-2019 07:30 AM
Rob22304 My projected range on a full battery never gets above the mid-70s. I'm able to achieve 80-90 total miles on a regular basis, sometimes even after short bursts with the AC on. This seems to be somewhat counter to folks having fully-charged estimates in the 90s and having the SOC cling to 100% for the first 5-10 miles. My SOC gauge drops quickly from 100 to 80 after a full charge.



Do I have an older or newer version of the software? A weird power profile on my battery? Free-floating anxieties?
07-28-2019 06:24 PM
sokoloff First time my projected range hit the 90 mark on the cabriolet. Been in the mid-80's most of the summer though.

Len
2014 EV Coupe 18,000 miles
2014 EV Cabriolet 13,000 miles
07-20-2019 11:57 PM
Htiek Jenkins If i hyper mile i go pretty far. Without a generator in the trunk unsure what max miles could be. 55 miles i get nervous. At 19% car gets.nervous with messages on speedo.

Sent from my SM-N960U using Tapatalk
07-08-2019 09:55 AM
Rob22304 The computer on my car estimates my total range at 63-68 miles after being fully charged. I've been able to bring the total range up to anywhere from 73-93 miles with some careful driving when the weather is warm.
07-08-2019 04:45 AM
Htiek Jenkins Best ever has been 4.1 mpkw
Most times not staring at guage more like 2.6 or so, lead foot.

My wife gets better mpkwh
I still get 70 or so miles but usually charge after 40 miles or so

Sent from my SM-N960U using Tapatalk
06-14-2019 09:12 PM
Smart car Electric cars are not immune to driving habits just like gas cars.
If you drive hard, use A/C or heat you get low efficiency, if you drive slow and easy with no climate you get high efficiency.
ED range is most likely an average and a low safe call by the OEM.

The electric car industry is only shooting for "MAX RANGE" Nobody ever mentions MPKW (Miles Per Kilowatt)
A larger battery is just like a larger gas tank, of course it increases range, but what about MPKW/MPG

I own a 2017 Chevy Volt. rated 52 miles EV range, I have never gotten less than 68 with A/C on and usually 78 miles on EV alone. (3.7 to 4.5 MPKW)
I own a 2015 Smart ED rated 58 miles range, I get 53 with A/C on and 85 mainly, driving the same way as the Volt, the Smart ED is more affected by the driving style and climate system really changes range. (3.1 to 5 MPKW)
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