Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Jarrett]

What's the Real World Range of a FX 7.2?

The website says:

91 miles in the city
39 miles at a constant 70 mph
54 at a 50/50 mix of each

Is this accurate?  My local dealer told me it was a low estimate rather than high.

[DonTom]

What's the Real World Range of a FX 7.2?

The website says:

91 miles in the city
39 miles at a constant 70 mph
54 at a 50/50 mix of each

Is this accurate?  My local dealer told me it was a low estimate rather than high.

Don't believe anything a dealer tells you. Especially not anybody in sales.

But I think you will find those ratings to be accurate within reason with the  7.2 KWH battery.

-Don-  Auburn, CA

[domingo3]

What's the Real World Range of a FX 7.2?

The website says:

91 miles in the city
39 miles at a constant 70 mph
54 at a 50/50 mix of each

Is this accurate?  My local dealer told me it was a low estimate rather than high.

Those numbers are pretty fair. The one thing that surprised me and I didn't know to ask about was the performance using the last half if the battery does not match the first half. I may not be able to maintain 70mph when the charge gets low - especially when it's cold.

[Richard230]

Also keep in mind that those range estimates were probably developed from dyno testing and likely don't take into account wind resistance and perhaps some other real-world factors. 

[caza]

I find the advertised range on my Zero is fairly accurate.

For my 2015 SR Zero claims 94 highway miles. I do an 80 mile commute almost entirely highway 70mph or more and I usually end up at 16% SOC.

If you do the math on that my overall range should be 95 miles, so considering about 2-3 of those miles are city speeds Zero's estimate is pretty spot on for me. I do have the windshield which is said to improve range.


This changes dramatically in the cold. Cold days give me range anxiety.

[NoMoreIdeas]

Numbers arent that far off, I get 60 on average with a mix of highway and city.

[endurocalypse]

Can confirm, I did a couple of 100-105km (62-65mi) trips without any problems.

[protomech]

Also keep in mind that those range estimates were probably developed from dyno testing and likely don't take into account wind resistance and perhaps some other real-world factors. 

They are determined based on dyno testing, but the dyno resistance is based upon speed to simulate drag from wind (drag determined via coast-down testing).

[Jarrett]

Thanks for all the info on this.  If I could eek out 68 miles on a ride, I think I could cover everything I'd want to do with the FX.

If I needed to get 68 miles, what would be the best strategy on an FX?

[Doug S]

If I needed to get 68 miles, what would be the best strategy on an FX?

Very simple...ride slow and avoid hills. On an EV, range is extremely extensible just by slowing down. Aerodynamic drag drops very fast and the other forms of energy loss (except for climbing hills) are pretty insignificant until you get down near single-digit speeds.

It's not fun but it's very effective at extending range.

[ashnazg]

Also considering using Custom mode to set Coasting Regen to 0%, to maximize coasting distance.  I think many of us do this, as well as set Braking Regen to 100%.  That can make the initial brake lever touch a bit hard, but it took me no time at all to get used to barely touching the brake lever to trigger only regen (I don't *think* I'm actually triggering the true brakes when I do this).

[DonTom]

Thanks for all the info on this.  If I could eek out 68 miles on a ride, I think I could cover everything I'd want to do with the FX.

If I needed to get 68 miles, what would be the best strategy on an FX?

I normally keep my electric bikes off the freeways, where possible. Very roughly, every time your speed doubles, your range is half. You can even beat the specs for range at slower speeds.

When I do go fast, I use my custom mode with 20% deceleration regen and 100% braking regen on my SR with power tank. I keep the deceleration regen at 0% on my much  lighter DS  6.5.

I cannot notice any difference while coasting downhill on my SR  w/PT between having the deceleration regen @ zero percent and 20%, perhaps because of the extra weight.

-Don-  Reno, NV

[Crilly]

Limiting regen helps distance but only if you donot use the brake pads.