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  1. vodk1c3

    3KW scott spark VIDEOS

    Seem like alot of fun :D
  2. vodk1c3

    16S pack charging with 8S charger

    I think it would work without disconnecting it. I would not do it because current will flow to the other half. Totally unsure about it.
  3. vodk1c3

    16S pack charging with 8S charger

    This site help make it clear. Just hit show balance wire diagram. http://scriptasylum.com/rc_speed/lipo.html An 8S balance plug should have 9 lead. Those big headway cell should make it easy; you have to split the pack in two for charging probably by adding wires in the middle.
  4. vodk1c3

    End of the World. Beginning of a new one. The Life of Amberwolf.

    Deeply sorry for your loss... We are with you Amberwolf.
  5. vodk1c3

    recycled laptop cell ebicycle battery pack builders club

    I think that Doc comment about home insurance was a good one! The newbie thing well... I don't agree; equipement may be faulty and even expert do errors... so all in all it's dangerous for everyone but it's more dangerous for newbies. I should be just fine. I've been here for almost a year...
  6. vodk1c3

    recycled laptop cell ebicycle battery pack builders club

    Let the fun begin... I just had to ask for it at work :) 21 x 10.8v@5000mah (6 cells). They are pretty old but... hey... it's free!
  7. vodk1c3

    CODD Power

    I would suggest not doing it; from the simple and good reason that no one want to repair a 100-200 cells battery if something go wrong. This also multiply the points of failure. I would stay with larger or easily replaceable ones.
  8. vodk1c3

    Noob e-biker enthusiast with a low to medium budget

    This yescomusa 1000w motor seem the same as my VPower. https://www.yescomusa.com/Brushless_Electric_Bicycle_Engine-_48v_1000w_Rear_Wheel_Hub_Motor_Kit.html So far so good (not riding so much, about 750km for now, alot of rainy days/winter); make sure you have torque arm solution. For the...
  9. vodk1c3

    Battery selection for a commuter bike

    I think you are in the right direction! Stay away from pack with multiple 18650 cells; awfull if you have any problem. The OSN offer seem quite sweet for 15ah 48v: http://endless-sphere.com/forums/viewtopic.php?f=31&t=47241 I found this vendor from taiwain that is pretty cheap and the cell...
  10. vodk1c3

    LiFePO4 48v 15ah BMS issues

    Normally each string going to the BMS should read somewhere between 2.0v and 4.0v. My guess is that if you measure 19v; you are measuring many string at once. Third graph of this page could be helpful : http://scriptasylum.com/rc_speed/lipo.html EDIT: If this is the only way you can measure...
  11. vodk1c3

    A123 20AHr Pouch Cell Battery Build & Info Thread

    The best build I can remember. If mine is half as good as this build I will be really happy. Good job!
  12. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Happy test ride this morning, feeling was soooo good because my leg hurt from pedaling to work :P I tricked the little B6 to charge the "bad" string to 3.7v with the LiPo storage mode. Didn't go past 3.36 in LiFe charge mode :x Discharged again, charged to 3.7v and let it sit couple of...
  13. vodk1c3

    build thread: klein mantra hs3540 5kW 70km/h 20" (done)

    Hey Izeman, have you done some testing on your battery pack? I have one puffer here from the 34 I received. :x Great work!!
  14. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Still a bit unsure of that result because IMAX B6 is rubbish; But I think that the string will not revive. :( It does charge at 3.36v and somewhat hold it but capacity and IR seem really bad even at 1A discharge. Every other strings are holding 3.6v really good. For now I will think of what...
  15. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Exactly what I did !!! I started to charge with my IMAX B6 yesterday just after the picture. Charging really slow at 0.5A (small wires I guess) but I did put 5A+ in the string now and voltage is holding at 3.3v. So far so good...!!! I'm pretty exited. Possible BMS issue will be investigated...
  16. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Did start to work; amount of glue is insane... real pain in the a&& Still donno witch string it is from the two in red. Will probably have to open the whole pack anyway to replace or remove anything. Positive is #2 from the balance connector; Negative is #3 The pack interconnect tab will also...
  17. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    I plan to do it slow; cause in my experience rushing thing is not really the answer. And will pedal to work happily, it will be just good for my body. Will share picture and ask questions if I still need. Couple of days; maybe a week or more you will have comeback of the experience for sure :)
  18. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Thank you guys, you probably saved my pack and even more...! It's greatly appreciated. Ypedal you made it really clear ;) Guess I have some work to do then!! Not sure if I will try to replace the cells or remove and hack BMS/charger. Will share the experience afterward... let's hope I don't...
  19. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Exactly what I would do... I was beginning to think that my english was too bad or that I was not clear enough... I really wish it would be as simple as ignoring that one string... repair could take me 10+hrs and even give me more problems in the process... Will open a beer myself and wait to...
  20. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Thanks again, So... you seem way more informed than me on this subject... Still does not answer the question directly By using it I know that I will ruin 1s of my pack; But is it dangerous for the other 15S.... The idea would be to discharge without BMS (and taking care that the other 15s stay...
  21. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    For reference picture : http://www.ypedal.com/cammycc/Index.htm I'm not really asking how to repair right now; I just want to know the reason why I shouldn't bypass BMS and let this string die and move on with it... If it's not too dangerous.
  22. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Thanks, Yeah will post picture soon. Could you explain to me why would using this would ruin the pack??? Cell exploding/things shorting??? Or something else??? Edit : By glue I meant something like "hot glue"...
  23. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Yes I know witch channel but cannot identify in the pack yet; need to get a hair dryer or something to get off some glue. Is it soooooo a bad idea to use it "as-is"!? Those 18650 metal case look pretty hard... not like pouch stuff.
  24. vodk1c3

    Does LiFePo4 18650 risk exploding if used while wasted?

    Couple of days ago my bike fell on the ground. 48V lifepo4 vpower. One 16s string is now wasted charge at 2.6v and idle at 1.1v. Cells are made of metal 18650 strings. The amount of glue of this pack is terrible; I wish to avoid repair. Would it be ok if I just doesn't care about those cell...
  25. vodk1c3

    Step down charger voltage?

    Thanks Amberwolf. Just found this thread dedicated to it by googling; donno how did I miss it :S http://endless-sphere.com/forums/viewtopic.php?f=14&t=22943&start=30 Is their any easy way to do it by pluging something between the battery and the charger? Diodes/ resistors?
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