PC2017

Esteemed Pedelecer
Sep 19, 2017
1,319
334
Scunthorpe
What's written on the controller
30/40+-0.5v(dual voltage)

At 33.5v lvc I wouldn't be too unhappy
Yer I would normally agree, I would normally swap out at 33v but lets not forget this is cutting with the voltage sag of 3v from 37v resting, with this controller I am lucky to get 12-15 miles per battery depending on weather not mentioning the uncertainty of little throttle boost when needed. After rigging the YOSE 15a I had a resting of 34.8v and 2 miles with a min drop under sag to about 32v battery indicator at empty and also these batteries are 3.5 year old so standing the test of time so far.

Above all I just wanted a dual voltage controller so I could get this 48v battery for cross country and still use my 36v-ers to use around town.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,917
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West Sx RH
3v is quite a lot of sag so battery is tired, though if using max assist not surprising.
Time to adjust battery management and use a lower PAS level at lower voltage.
 

PC2017

Esteemed Pedelecer
Sep 19, 2017
1,319
334
Scunthorpe
battery is tired
I know that feeling and it will be nice to treat myself to a new battery for the sake of future proofing of course! In all fairness I think nearly 4 years is not bad going since I bike everyday or at least 350 days a year and cover between 6 and 10 miles a day, more in the summer!
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,917
8,533
61
West Sx RH
I know that feeling and it will be nice to treat myself to a new battery for the sake of future proofing of course! In all fairness I think nearly 4 years is not bad going since I bike everyday or at least 350 days a year and cover between 6 and 10 miles a day, more in the summer!
Yes, not bad going at all considering the mileage. Approx 9k - 14k.
 
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PC2017

Esteemed Pedelecer
Sep 19, 2017
1,319
334
Scunthorpe
Just added the 36/48v 14a Sine wave controller to the 48v Yose 250w black front hub and early testing results in amazingly smooth operation, nice and quiet, it came with an XT60 so I swapped that out for an XT90 - Well pleased so far...
34438
 

PC2017

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Sep 19, 2017
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First quick ride out, not far... Square wave tapers off from 300-500w at PAS 3/4/5 to between 250-350w(14a) but Sine wave or this controller at PAS 1/2 it held as normal at 90-120w but when I hit PAS 5 it held at the watts I would normally see hill climbing 500+ and even hill climbing on a square wave it tapers off to 400w and this holding of watts is what I was searching for ever since the Dillenger because that 15a controller was Sine and for all this time I thought I was going crazy! Now I will drop the amps on this 14a to around 12a and see how that fairs in head wind....
 

Jammyb

Pedelecer
Jun 30, 2016
67
4
46
southampton
sounds good mate, great once you have a smooth working setup ;) . Black controller looks nice to, wouldn't look out of place mounted direct to the frame somewhere or do you have a controller box/bag
 

PC2017

Esteemed Pedelecer
Sep 19, 2017
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334
Scunthorpe
do you have a controller box/bag
Converted seatpost bag and some well managed cables all neatly tucked inside the bag, i'll pop some pics up when cleaned and I agree it would look sweet mounted on bike and that black has an air of quality to it and not just aesthetics, a part from the ultra short battery wire the whole controller has a well-built feel to it. I have yet to try out the 14 amps on a 36v battery but for quick shop runs and the occasional fast food grab I think it'll work as long as there's no strong wind about...
 
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PC2017

Esteemed Pedelecer
Sep 19, 2017
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20200322_144842.jpg20200322_144811.jpg20200322_144830.jpg
20200322_144917.jpg
The USB cable is for Firefly 7s Action Cam routed to the front and there's just enough room to squeeze a dual 18650 power bank for the cam.
 

PC2017

Esteemed Pedelecer
Sep 19, 2017
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Scunthorpe
With the addition of the 48v battery and the 14a dual voltage sine-wave controller on the 250w front YOSE hub a few issues have arose, firstly the above pictures and controller storage method is perfect for the winter months however it did not fare well as the bank hol temps reached 18 deg. 3.5 miles to the edge of town and I had extreme controller faults due the heat sinks being smothered by the black coffin that is the seat bag, so a quick fix on that was to loop the cables into the bag and sit the controller above the rear hydraulic brake and secure it in place with a velcro strap and some zip ties, 100 miles later and this is now working as expected without any noticeable temp problems or securing issues(pics avail on req.). The second issue is more of an old habit, that is throttle use at traffic lights when not utilising the bikes gears to allow easy set off, even when the settings are used to allow PAS level to control throttle use, ie PAS 1 engaged and throttle used, throttle is limited to PAS 1 watts output ie slow speed. Engaging the throttle will initially apply near or full watts to the motor, the higher the PAS level the more intense this is, so even on PAS 1 there is a brief period of 500+ watts which can cause untold front wheel spin esp if I have stopped on gravel. The 250w motor has some noise vibration issues at PAS 1 and set off but nothing of major concern but has no apparent heat issues even on a long haul in hot weather.

Other than these issues, and cleaning the suspension it is now a joy to ride. As mentioned in other posts P5=10 in early testing seems to work well as a 48v battery level indicator setting however due to the dual voltage controller sometimes thinking a 48v battery at 44v is a 36v battery I still keep an eye on the real time voltage.