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  1. C

    qs 1000w builds

    Yes. Or actually 1 year ago when I purchased the motor. But how did you deal with the notch / the slot? I will go with the larsb's idea.
  2. C

    qs 1000w builds

    True. It's 2cm large, but on the tooth side it's not really large. You are right there is not enought space.
  3. C

    qs 1000w builds

    Yep, this is quiet a good idea. Why I did not find it by myself. The problem will be the chainline. The engine is already quiet large and is colse to the pedal. Btw: Its a Manet Korado cyclomotor. So it might be wise to mount the sprocket type A on the inside of the original sprocket (the...
  4. C

    qs 1000w builds

    I can do that, but the hole in the sprocket must be tapered. I can't choose a normal sprocket with a slot. There are plenty of mainstream sprockets...
  5. C

    qs 1000w builds

    Well, good idea. I did not check if the sprocket is hardened. The theeths will get smaller. It's kind of workaround and not durable. Or how many km or miles did you run it?
  6. C

    qs 1000w builds

    This adapter is a really good idea Tommm. Like this we could use any sprocket with a center hole big ennought. @Skaiwerd Your Idea is also very good. But copper seems to be too soft material for this kind of torque. Or am I totally wrong here? It bugs me that much, because Judy told me the...
  7. C

    Queen Battery QB26800 6800mAh 20A - the big guy!

    Would be nice to find someones review of a pack rather one single cell.
  8. C

    qs 1000w builds

    Yeah, I was thinking about an adapter too. But would the axle not be to large to fit the "standard" front sprockets?
  9. C

    N.E.S.E. the no solder module

    I love your idea and your projects. I am actuelly planing to upgrade robo mower batteries. I will consider your modules to make it easy as possible. Keep on going. :thumb: Same for this 26650 modules.
  10. C

    qs 1000w builds

    Guys! It semms there is an issue with the sprockets. QS sold me last year the 1000W motor and claimed to be shipped with 420 sprcket. So I ordered a chainring and a matching 420 chain, just to find out the sprcket is not 420. It's indeed made for a 428 chain. 428 motorcycle chain on 1000W...
  11. C

    qs 1000w builds

    Hi guys, Does someone know a source to get a sprocket for a 420 chain? The axle shaft is quiet special with its conic taperlock. Until now I did not find a supplier. Not in Europe, nor on Aliexpress. Someone got an idea?
  12. C

    NCM cells

    Ha! This truck https://www.emining.ch/en/ is just around my house. 20min by bike (not e-bike). The battery vendor is 1h by train. If they use this cells in a minin truck with 123t of weight and in Switzerland, so it has to be a really seriou battery cell. The price seems quiet ok to me. I...
  13. C

    1954 Puch Allstate Conversion to Electric

    Cool, work. I like it
  14. C

    Open source BMS for 48V to 400V lithium-ion battery pack

    What about the BMS basic functions only. But with nice features the aliexpress BMS dont have. 1. Let the power flow through a relay. I do not se a reason current passing the BMS. 2. Easy programmable cut-off voltages, like 4.1V -> 3V. 3. Protecotion functions will trigger the relay and thus...
  15. C

    Li-ion cells cycle ageing

    I was thinking the same. But: Why not to monitor a battery under realy conditions. Monitor the discharge, charge, cycle, ambient temperatur, celltemperatur (optional), ++. It sould be something easy, anyone can hook up his pack, analize and if desired, shere the data on ES. Maybe little off...
  16. C

    Cuprani's Vector Typhoon | 20S8P Sony VTC5A batt build

    Thanks for sharing your work. Indeed the N.E.S.E modules look very serious and stable. I think it is worth the extra price. Like you, I was until now spotwelding my packs. Always with mixed feelings. For me the stability, the current draw and the flexibility to easily chance a cell are key...
  17. C

    Li-ion cells cycle ageing

    @john61ct If you dont mind loosing litte capacity, by not using those shoulders, you still have over 85% initial capacity afer 700 cycles. If in seldom cases you use this shoulders, it might not hurt the battery that much. Just do some math and assume a battery pack according your needs...
  18. C

    Charger compatibility

    Hi, It depends. You need to provide more information. If its a li-ion pack, so it might be a 2s (two cells in series). The nominal voltage might be 3.6V -> 2x 3.6V = 7.2V. But fully charged = 2x 4.2V -> 8.4V. If you look closely at the output of your charger, you might find the output voltage...
  19. C

    N.E.S.E. the no solder module

    How about the 26650 progress? I slowly plan a lifepo4 pack for summer / autom build.
  20. C

    Cuprani's Vector Typhoon | 20S8P Sony VTC5A batt build

    YeahI am interested too
  21. C

    Charging trough motor stator. How does it work?

    Thank you amberwolf. Nono, I do not need to reverse engineer it. Just how it works. This makes sense. So there must be an additional connector on the controller which contains a phase wire and probably the batttery negative. The charger connected to these wires will cause an induction in the...
  22. C

    Li-ion cells cycle ageing

    Haha, nice hint doc. To attach your linked comment of Pajda. It would be kind of interesting how the same cell behaves under different conditions. Let's say one will be charged always to 4.2 Vol while an other has a higher discharge rate. The third is discharged with your standard discharge...
  23. C

    Charging trough motor stator. How does it work?

    I have red about the charging trough motor stator in the Powervelocity controller and the nuclear controller thread. Powervelocity: and Nuclear: This is a nice feature of the controllers. But I am wondering how this works? I did a research about motor stator charge, but there are not free...
  24. C

    Nucular electronics - complete kit for ev!

    Hi VasiliSk, There are just little informations about the BMS on you homepage yet. Are you still open for some ideas / wishes or is the development already in a soon finish state? My ideas: - No power flow through the BMS - The BMS monitors and banlances the battery cels - The power is...
  25. C

    Queen Battery QB26650-2300 LiFePO4 cell's test + comparison with A123 Systems ANR26650M1B

    @Thunderheart Have you seen the QB26650 3.2V 3600mAh Lifepo4 cell? There are no tests yet about this specific cell. Or I did not find any yet. :-)
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