Haibike Sduro Hardseven Battery Consumption

[Zlatan]

I have a test route in Derbyshire. 16.3 miles, mixed paths I,d guess about 800 ft of climbing and roughly 4 miles of road ...

My best time on route on none electric is 1hr 47 mins. ( average 9mph)

Best time legal emtb ( in high but working hard) is 1hr 5 mins and a few seconds..( Averaging 14.8 mph and using 63% of 400wh battery)

This morning I refitted dongle bike came with ( a badass) and results were... Time 54 mins 30 seconds , average speed 17.9 mph and used 98% of 400 wh battery. ( bike was less powerful last couple of miles, but not much)

Is there any way of working out roughly my contribution in wh ? ( ie if bike doubles my work in high and used 392 w in 54 mins is it correct to assume I,d contributed one third of 392 ? ( around 130 watts?)
Anybody know ?
Thanks..
( I,ve now removed dongle so legal again...I got away with it tho..)

With dongle fitted I can easily flatten a 400 wh battery in under an hour...bike must be capable of well over 250w...

 

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[Zlatan]

Thanks soundwave...Is the figure giving motor watts or total machine watts. ( ie rider and motor). Saw a figure of 600...surely motor not consuming/ giving 600w ???

 

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under 15 mph the motor can use full power so 6-700w if you dongle it it removes the speed limit so you get full power from the motor.

thus why it goes flat alot faster with no speed limit.

it is the same with bosch motors as i can take out a 500w bat in 1hr 20 mins.

 

[Gubbins]

under 15 mph the motor can use full power so 6-700w if you dongle it it removes the speed limit so you get full power from the motor.

thus why it goes flat alot faster with no speed limit.

it is the same with bosch motors as i can take out a 500w bat in 1hr 20 mins.

I assume you do that on a regular basis.. How is that affecting the battery long term?

 

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id say with the 400w bat i loose about 10% capacity per year so down 30% from 2014.

id say that is good going tbh but as i now have the 500 i switch between the two.

 

[Gubbins]

id say with the 400w bat i loose about 10% capacity per year so down 30% from 2014.

id say that is good going tbh but as i now have the 500 i switch between the two.

I would think that it will get quite warm, and to go any reasonable distance you will be deep cycling all the time so if its still working afer 3 years of that sort of punishment they must be a good batteries..

 

[Zlatan]

I assume you do that on a regular basis.. How is that affecting the battery long term?

Is flattening battery in 90 mins or so any more detrimental than 3 hours or so ? I cant see any reason why, after all the maximum draw is unaffected, you can just do it longer/ more often...if you are fit enough.
Infact if you picked a very hard route ( ie a long hill which kept your max aided speed under 15.5 mph you could run down battery just as quickly...I,d guess the item most likely to cry enough is the motor...if its nominally rated to handle 250w but by usage or dongle we can make it sustain at least 400 then surely we are over loading motor but not battery ???

 

[Zlatan]

id say with the 400w bat i loose about 10% capacity per year so down 30% from 2014.

id say that is good going tbh but as i now have the 500 i switch between the two.

Does that loss show on your display ? ( ie wont charge above 90%??)
I,d read somewhere batteries are only down to 80% after a 1000 cycles ??? Irrespective of time ?? ( if stored correctly, ie at 50% but I always store mine full and have only noticed a drop in range in cold weather ??)

 

[Gubbins]

Is flattening battery in 90 mins or so any more detrimental than 3 hours or so ? I cant see any reason why, after all the maximum draw is unaffected, you can just do it longer/ more often...if you are fit enough.
Infact if you picked a very hard route ( ie a long hill which kept your max aided speed under 15.5 mph you could run down battery just as quickly...I,d guess the item most likely to cry enough is the motor...if its nominally rated to handle 250w but by usage or dongle we can make it sustain at least 400 then surely we are over loading motor but not battery ???

I have read that deep cycling (completely discharging and recharging) wears the battery out quicker than regularly topping it up.

 

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no it does not show on screen but can tell buy the distance give or take a bit.

bosch does have a capacity tester but local shop does not have one but with any batt the longer and faster you drain it the less it will give over time.

it still fully charges with all 5 bars lit but it is not as good when it was new thats for sure.

 

[Zlatan]

Do you think you can draw 600w out of system ? If that is case I should be able to empty ny battery in 45 mins,?? ( a 400, less if its lost 10% pa, mines nearly 3 yrs old)
Today was my shortest battery duration, dont think I could have worked any harder...to draw it down faster...

 

[soundwave]

my motor can run at 120 rpm where as the yamaha pw only has 90 so i can hit over 30mph on my bike.

 

[Gubbins]

I reckon you will still have to work hard for 30. How long cam you maintain 30mph?

 

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[Zlatan]

my motor can run at 120 rpm where as the yamaha pw only has 90 so i can hit over 30mph on my bike.

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Why is that ? Have you changed motor or do they offer different yam motors...

 

[Gubbins]

my motor can run at 120 rpm where as the yamaha pw only has 90 so i can hit over 30mph on my bike.

I bought a cadence sensor for the yamaha and power starts to die as you aproach 90 rpms and gives nothing of note after 95.

 

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the new pwx yamaha motor has 120rpm now but i have also changed the front chain ring to 18t to suit my pedal speed.

i have also changed a fair few parts on my bike to save waight like carbon crank arms and no qr leavers run tubeless ect.

 

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[Gubbins]

the new pwx yamaha motor has 120rpm now but i have also changed the front chain ring to 18t to suit my pedal speed.

i have also changed a fair few parts on my bike to save waight like carbon crank arms and no qr leavers run tubeless ect.

Have you ever tried pedalling at 120?