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Re: Your Whours for kms

Posted: May 24 2015 7:57am
by Eskimo
I rarely ride over 20mph continiously. Usually around 15mph continious with some occasional sprints on 25mph. If the road is flat without headwind and good i might cruise at 20-22mph.
Cruiser: 9-10wh per kilometre
Velomobile: 10-12wh per kilometre.

Usual figures. Sometimes i let it rip a bit if i can burn electrons without range anxiety.
Cruiser consumes really lot if i keep 25mph constantly. Something like 3Ah per 10km.

Re: Your Whours for kms

Posted: Aug 12 2015 2:58pm
by Spanglo
New to ebikes, and I could use some help figuring out usage.

Is it possible to figure watt hours from start and end voltage?

On my 19.7 mile commute to work, the starting voltage of my 12S 6.6A pack was 49.2V. Arrived at work and the pack measured 45.4V. The controller is set to 20A. Is that enough info to make a calculation, or do I need a watt meter?

Re: Your Whours for kms

Posted: Feb 21 2016 2:59pm
by nicobie
Over all my 2016 Volt will go 4 miles per kWh.

Re: Your Whours for kms

Posted: Oct 23 2016 2:51pm
by Matador
BBSHD on a 14S9P Lithium cobalt made of old laptop 18650 that heat up like hell.
Bike : 700C wheels, 46T chainring, 14T rear gear, tyres to 70 PSI, bike weight (with motor kit and battery) 67 lbs, me 155 lbs

Did 17 km with 524 Whr averaging 28 km/h (lot of wind in my face because riding on the border of saint-laurent river)

So that's 31 Whs/km on a BBSHD

Re: Your Whours for kms

Posted: Jul 10 2017 12:31am
by John in CR
SamTexas wrote:I don't know what to say. I have no idea how you came up with those wild theories. Imagination working overtime?
He missed that your more than half the power to get to 20 was coming from your legs and thought you were going light on the throttle during acceleration.

Re: Your Whours for kms

Posted: Feb 11 2020 2:13pm
by John in CR
My long term average riding in a fun manner at vehicular speeds to match or slightly exceed traffic has been just over 40wh/km. 5 years ago or more I ran significantly higher consumption due to a much higher % of hard launches. Though the novelty of an amusement park ride for pennies a ride and no lines hasn't worn off, I've mellowed somewhat and take it easy much of the time. Just don't pull up next to me or worse, in front of me, with some smoke and noise belting beast, as you will be taught a lesson about how much better electrics are.

Re: Your Whours for kms

Posted: Feb 11 2020 9:31pm
by ZeroEm
:lol: "John in CR" you only upset them. I don't do this anymore but my slow Nissan Leaf will leave any street ICE car or truck at the stop light and up to the speed limit. Used to do it to those that would act like they had something hot. It's really hard on my narrow tires. My mother drives the car more than me now and the average W/KM is going up so driving habits affect what ever you drive.

My trike averages 9-15 w/km, 20-40 kph, this is with a lot of peddling for my health but with pas. One of my rides is 70km on a paved bike trail twists and turns and small hills. 1. mostly pas used 500 watts for the 70km. 2. used pas but would throttle up hills and did not worry about saving watts used 1000 watts for the 70km.

Re: Your Whours for kms

Posted: Feb 12 2020 10:12am
by DogDipstick
How about highest instantaneous ( at any moment) Wh/mi you have seen? I have seen over 800Wh/ mile.

Average about 50 Wh/mi. 85 lb bike 175 lb rider.

Re: Your Whours for kms

Posted: Mar 03 2020 10:54am
by ZeroEm
I will take my trike out and run it under power only to see the worst it can be. I only go 28mph/45kph tops so will not be that bad.
It will be good info for me anyway, how far can I go without a chain.
With my setup in grinn's motor's simulator 216 w/km and my motor would over heat just over a minute on a 20% grade.
flat ground it says 16.5w/km @ 51.7 kph but my trike will go 53 kph. so I will test it some time. Now if I could find a head wind :lol:

Re: Your Whours for kms

Posted: Dec 22 2020 1:28am
by bubblet
I get about 30wh/km @50km/h or 31mile/h

Running at 50km/h or 31mile/h, it uses about 1500-1600 watts. 72v 26.1AH battery, Sabvoton 72100, and some qs205 copy motor. Bikes ~130 pounds and I'm about 135.

Re: Your Whours for kms

Posted: Dec 26 2020 2:01pm
by Pentti M Reku
Highracer recumbent with 26" wheels with a mxus xf07 geared hub, kt36 15a controller used to consume between 5-10wh/km measured out of wall. Heavily dependent from pedaling intensity due to low legal e-assist speed.