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  1. H

    Samsung 25R/LG 18650HE2/ Sony VTC5 high power 18650 battery

    What glue is between them?
  2. H

    Buying batteries from aliexpress and alibaba

    That seller has almost 700 feedbacks and 98.8% are positive. I asked did anyone bought batteries from aliexpress.
  3. H

    Buying batteries from aliexpress and alibaba

    There (on aliexpress page) is written: I got answer about "for". It looks strange. Other sellers does not write "for". They write genuine. Did anyone bought batteries from aliexpress? They are there much cheaper, then in my country.
  4. H

    Buying batteries from aliexpress and alibaba

    Fasttech does not send into my country, it lies, on product page is written: WORLDWIDE FREE SHIPPING But they does not send into many countries.
  5. H

    Buying batteries from aliexpress and alibaba

    There are something strange in aliexpress and alibaba. For example this product page: http://www.aliexpress.com/item/18650-US18650VTC5-3-7V-2600mAh-high-drain-30A-discharge-vtc5-battery-for-Sony-power-tool-makita/1872913567.html In title is written: "for Sony" What word for does mean? In...
  6. H

    New battery inside rear wheel

    Backward.
  7. H

    Question about mac 12T torque

    I keep my e-bike at home, i lift it by elevator (i live on 8:th floor). If i will keep it in public bicycle storage, then someone will stole it quickly, there (public bicycle storage) is cheap bikes only.
  8. H

    Question about mac 12T torque

    50 degrees was outside. I don't have laptop.
  9. H

    Question about mac 12T torque

    Here is typical bicycle lane in helsinki: http://goo.gl/maps/zkGVB Today i saw 2 police cars during ride :) Police mans also saw my e-bike, i did not ride overspeed at that moment, because i explored helsinki at that time. Here helsinki's one of the best bicycle lane. http://goo.gl/maps/Iyd1w...
  10. H

    Question about mac 12T torque

    Is crank this:? I am not englishman, my native language is not english. If 50 nm on crank, then on wheel must be about 35 (crank's and wheel's biggest gear ratio is about 1.5) 35nm on wheel is too small torque. My weight is 87 kb, bike + batteries 37 kg, whole weight 124 kg. When i want ride...
  11. H

    Question about mac 12T torque

    Where you read about it? Is in this forum topic about it? 50 nm where? On crank or on rear wheel at fastest gear? How much bosch costs? Is it silent? Helsinki. Not perfect, it's speed at 36.5 v on flat is 33 km/h. EU legal is 25. 12T's maximum speed on flat at 36.5 v with 26" wheel is 27 km/h...
  12. H

    Question about mac 12T torque

    I don't want euro legal, i want overspeed, but i don't need heavy overspeed. For euro legal 12T is better with 12s lifepo4 battery, because it has maximum speed on flat 27 km/h, 10T has 33 km/h. According data which i got at 36.5 volts 33 km/h on flat. Difference between 10 and 12T is small...
  13. H

    Question about mac 12T torque

    I know, peddling impoves efficiency greatly, but if i ride over 70 km, then i can pedal first 40 km, but last 30 kilometers i want to rest. 31 mph = 49,6 km/h, it is very heavy overspeed, almost double overspeed. 49,6/25=1,984 I have this battery...
  14. H

    Question about mac 12T torque

    Not big, but my current crystalyte HS2540 is too bad for them. 15-20 km/h. 100-400 meters. It has worse power/torque ratio then 10T, and too big RPM/volt ratio. 30 mph = 48 km/h. I live in EU, here riding on e-bike over 25 km/h = overspeed. I can ride overspeed, but slight overspeed only, 30...
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    Question about mac 12T torque

    According simulator BMC v2 torque has 1,42 times less RPM/v ratio then speed version. If they are copy of 10T and 8T then ratio difference must be 1.25 (10/8), but it is 1.42. Why? If i understand electromagnetism correctly, then torque version must have bigger amount of copper then speed...
  16. H

    Question about mac 12T torque

    Now i have crystalyte HS2440 and 25 amperes controller. According simulator it gives at 37.5 v (12s lifepo4 at load) 51 N/m torque on start. With 26" wheel at 13 km/h it's cofficiency is only 43.6%. If i choose BMC v2 speed then it gives 73 N/m torque at start, and at 13 km/h efficiency is...
  17. H

    Cheap lifepo4 batteries on ebay

    In europe maximum output power is limited to 250 watts. If efficiency is for example 66% = 375 watts input power. I have crystalyte high speed front motor and 36-48 volts 25 amperes controller, i.e. my bike is vehemently over powered. I never travel at full power on flat, only on uphills. Over...
  18. H

    Cheap lifepo4 batteries on ebay

    I mean 36v 15ah. They does not ship to my country by sea. They ship by airmail only. Do you mean this?:
  19. H

    Cheap lifepo4 batteries on ebay

    One or 2 month ago on ebay appeared new lifepo4 seller. He sells batteries at low prices, has 100% positive feedback. Does anyone know anything about these batteries? http://cgi.ebay.com/36V-15AH-LiFePO4-Battery-Rechargeable-Charger-BMS-Power-/140578098640?pt=US_Batteries&hash=item20bb1b8dd0
  20. H

    New Crystalyte Motor series (HT35 / HS35 and HT24 / HS24)

    What for you will install hall sensors, if Crystalyte sells sensorless controllers?
  21. H

    New Crystalyte Motor series (HT35 / HS35 and HT24 / HS24)

    Can you paste price list here?
  22. H

    Question about nimh batteries on ebay

    Where i can buy from lipos with best price/quality ratio? Does hobbyking's turnigy and zippy batteries have good price/quality ratio compared to other battery shops?
  23. H

    Question about nimh batteries on ebay

    I know. But nimh can give 0.5c continuously and 1-2c short time. If my ebike need 200 watts then i use 400 w/h nimh battery pack. Does nimh batteries need balancing if i use them in series? Can i charge them in series of 10 (= 6 chargers fo 60 pieces) pieces? I will buy them if i can charge them...
  24. H

    New Crystalyte Motor series (HT35 / HS35 and HT24 / HS24)

    Can i use controller from radio-controlled models with this motor?
  25. H

    Question about nimh batteries on ebay

    But why he has 99.4% Positive feedback?
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