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Author Topic: 70MPH range comparison between SS921.5 and SRF17.3  (Read 646 times)

domingo3

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70MPH range comparison between SS921.5 and SRF17.3
« on: January 02, 2023, 12:26:50 AM »

I apologize that I searched forums and videos and couldn't find anything to get me close to the answer I'm looking for.  I'm not interested in the power tank.

Battery Model        Claim
Battery ZF15.6+ 84 miles @70MPH
Battery ZF17.3   93 miles @70MPH
Battery SS9      130 miles "extra urban riding"

Can anyone translate this for me?

Also, has enough time passed to get a feel for overall bike reliability, bugs, or battery aging?

2016 SR - 35k miles

...and yes, I know there is a lot of discussion about this, but can't find the answer I'm looking for.

Thank you.
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2016 Zero FXS 2018 Zero FXS 2016 SR

DonTom

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Re: 70MPH range comparison between SS921.5 and SRF17.3
« Reply #1 on: January 02, 2023, 02:34:28 AM »

I apologize that I searched forums and videos and couldn't find anything to get me close to the answer I'm looking for.  I'm not interested in the power tank.

Battery Model        Claim
Battery ZF15.6+ 84 miles @70MPH
Battery ZF17.3   93 miles @70MPH
Battery SS9      130 miles "extra urban riding"

Can anyone translate this for me?

Also, has enough time passed to get a feel for overall bike reliability, bugs, or battery aging?

2016 SR - 35k miles

...and yes, I know there is a lot of discussion about this, but can't find the answer I'm looking for.

Thank you.
What was the question?  But it's best to figure out range by the nominal/useable capacity of the battery pack. And then think about things like weight, wind, etc.


Try to figure out your average miles/km per KWH at various speeds / loads and use that instead of meaningless factory specs.


-Don-  Auburn, CA
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1971 BMW R75/5
1984 Yamaha Venture
2002 Suzuki DR200SE
2013 Triumph Trophy SE
2016 Kawasaki Versys 650 LT
2017 Blk/Gold HD Road Glide Ultra
2017 Org Zero DS ZF 6.5/(now is 7.2)
2017 Red Zero SR ZF13 w/ Pwr Tank
2020 Energica EVA SS9
2023 Energica Experia LE
2023 Zero DSR/X

Richard230

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Re: 70MPH range comparison between SS921.5 and SRF17.3
« Reply #2 on: January 02, 2023, 03:51:58 AM »

And then you have the issue of do you really want to ride until the battery is completely drained?  Personally, I like to retire for a battery charge at around 25% SOC or earlier. Likely the two platforms function differently below that SOC. Knowing the range from 100% to 0% might be useful when "bench racing", but how useful is it in the real world of your typical ride? 
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Richard's motorcycle collection:  2018 16.6 kWh Zero S, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.

domingo3

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Re: 70MPH range comparison between SS921.5 and SRF17.3
« Reply #3 on: January 02, 2023, 07:22:16 AM »

By "comparison," I meant a comparison of the range between the models listed.

I don't believe the manufacturers range numbers and don't believe that  the range is proportional to the battery size.
In an near as conditions as possible, how far will each bike go at 70 MPH?  This would be a one time thing, not a repeat occurrence.  I'm open to suggestions for a different test.
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DonTom

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Re: 70MPH range comparison between SS921.5 and SRF17.3
« Reply #4 on: January 02, 2023, 07:46:12 AM »

By "comparison," I meant a comparison of the range between the models listed.

I don't believe the manufacturers range numbers and don't believe that  the range is proportional to the battery size.
In an near as conditions as possible, how far will each bike go at 70 MPH?  This would be a one time thing, not a repeat occurrence.  I'm open to suggestions for a different test.
It will be proportional to the true useable battery size other than the countless other possible variables, such as differences in total weight, temps, wind, etc.


FWIW, I would rather have less range and more charge stations on the road.


-Don-  Auburn, CA
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1971 BMW R75/5
1984 Yamaha Venture
2002 Suzuki DR200SE
2013 Triumph Trophy SE
2016 Kawasaki Versys 650 LT
2017 Blk/Gold HD Road Glide Ultra
2017 Org Zero DS ZF 6.5/(now is 7.2)
2017 Red Zero SR ZF13 w/ Pwr Tank
2020 Energica EVA SS9
2023 Energica Experia LE
2023 Zero DSR/X

DonTom

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Re: 70MPH range comparison between SS921.5 and SRF17.3
« Reply #5 on: January 02, 2023, 07:52:22 AM »

And then you have the issue of do you really want to ride until the battery is completely drained?  Personally, I like to retire for a battery charge at around 25% SOC or earlier. Likely the two platforms function differently below that SOC. Knowing the range from 100% to 0% might be useful when "bench racing", but how useful is it in the real world of your typical ride?
I used to charge way too often. On my Energica, I now like to be below 20% before I recharge. While they may be different at a different SOC %, a KWH is still a KWH and that is your real energy left.


-Don-  Auburn, CA
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1971 BMW R75/5
1984 Yamaha Venture
2002 Suzuki DR200SE
2013 Triumph Trophy SE
2016 Kawasaki Versys 650 LT
2017 Blk/Gold HD Road Glide Ultra
2017 Org Zero DS ZF 6.5/(now is 7.2)
2017 Red Zero SR ZF13 w/ Pwr Tank
2020 Energica EVA SS9
2023 Energica Experia LE
2023 Zero DSR/X

jotjotde

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Re: 70MPH range comparison between SS921.5 and SRF17.3
« Reply #6 on: January 02, 2023, 05:57:59 PM »

I think, domingo3 wants to compare, so this is independent from riding style, topography etc.

My Ribelle consumes approx. 90 Wh/km at 100 km/h (should be about 70 ml/h) on flat surface, with no wind and not much overtaking etc.
With an available net capacity of a bit over 16 kWh that would give you a range of about 170 km (100 % to 0 %).
So the 'extra urban' 130 miles you wrote about would probably relate to an average of 80 - 90 km/h.
I briefly owned a Zero SR/F and the consumption was not terribly different (at that speed).
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Pard

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Re: 70MPH range comparison between SS921.5 and SRF17.3
« Reply #7 on: January 03, 2023, 07:06:22 PM »

Good post for reference in this thread:

https://www.electricmotorcycleforum.com/boards/index.php?topic=12216.0

At the end of the day I don't care how much i put into the battery, it's what comes out of it that counts. My 2016 DSR did my commute but barely, getting me to work often with only 1% left. The 13kWh battery then consumed 11kWh max, with the charging efficiency that means (90% of 11kWh) 9.9kWh reaches the cells.
On the SR/S not much of a difference, also just made it to work with the 15.6kWh battery but with 10% left. Charged with 12,8kWh means 12,7KwH reaches the cells.
The Ribelle takes 14.7kWh for the same distance, but at very different speeds. On the Zero's 100km/h was pushing your luck and if there was no traffic I could not make it to work or home. On the Ribelle I drive 10km/h faster than allowed fairly constantly. I arrive with 20% or more left. So my Ribelle is 14,7/.8 * .9 =  16.5kWh net, extrapolating the 20% left and a charging efficiency of 90%.

Every EV builder gives you flaky numbers, look at the ranges they predict which nobody ever gets in the real world, or charge speeds, or battery capacity. What matters to me, is that I comfortably do 150km highway at highway speeds and then have enough left to find a charger.
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