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  1. efreak

    Little Frog battery pack

    the same sort of problem i am having in this thread http://endless-sphere.com/forums/viewtopic.php?f=14&t=31251 Is there any voltage detected on the charging poles for the battery? from bms? any fuses that maybe blown or any signs of any component burnt out? still waiting for the correct...
  2. efreak

    18650 battery holder

    on page 7 this is by far the best design i have seen yet for interchangeable cylindrical battery pack construction period. can't seem to find any weak points, none.
  3. efreak

    yescomusa.com (GM) 48V 1000W rear motor kit

    You also need to add your own $2 rim tape . is it does not come with and it punctured the inner tube from inside after the first couple of rides the motor that looks similar to magic pie but different ( it has silver rings instead of the star look) is made by conhis motor China
  4. efreak

    E-Bikekit.com 36v 10ah LiFePo4 Battery

    maybe but only i pole very much like an rcs with the long end nipped
  5. efreak

    E-Bikekit.com 36v 10ah LiFePo4 Battery

    there is no voltage on the wires leading to the female rca on the pack zero,
  6. efreak

    E-Bikekit.com 36v 10ah LiFePo4 Battery

    i have take better pics part number ME7580C H040
  7. efreak

    E-Bikekit.com 36v 10ah LiFePo4 Battery

    it would be sticking out of the pack though! i should really. the male rcs thingy (it is like an rca) has a short inner part so as not to short but i do agree it is a cheap way to go and they are like or pro electronic left overs good for nothing and still good for nothing i guess a little...
  8. efreak

    E-Bikekit.com 36v 10ah LiFePo4 Battery

    Thanks a lot there is no fuse on this one then i am not sure if the charger is 2 or 3 amps i remember reading the 48 volt pack came with the 3 amp . but no small fuse on the charging end i am looking for the pics and the small 3/8" mount its like an rca with a fat back very hard to find any...
  9. efreak

    E-Bikekit.com 36v 10ah LiFePo4 Battery

    Thanks a lot Y! You may be able to help me with my silver pack that i purchased on ebay. 48 volt 10 ah as it is mention in the thread, http://endless-sphere.com/forums/viewtopic.php?f=14&t=31251 the pack hit the work bench that caused a small push on the plastic where the charging rca 3/8"...
  10. efreak

    18650 battery holder

    I first like to knowledge great work by Leamcorp for this topic. The final product is amazing! 8) {many thanks to others as well for their contribution on this forum} the best design yet for no hassle, no soldering, no fuss packs that are easy to fixlater and i would be interested in...
  11. efreak

    Volgood 48V20Ah LiFePO4 Repair by Amberwolf

    Thanks I read the announcements after . The upcoming wiki feature sounds great it should cut down on search times. Thanks to Justin and Mr Vass
  12. efreak

    cause of BMS problems with battery?

    That could be the problem i would suggest a bigger amp anderson connector http://www.connex-electronics.com/?url=/html/products/anderson/anderson_main_select.html?gclid=CNyvosPX_aoCFc_AKgodGQnLTQ
  13. efreak

    Volgood 48V20Ah LiFePO4 Repair by Amberwolf

    too bad the pictures are not available neither here or the Vpower thread.
  14. efreak

    Golden Motor Silver Battery Box Repair Puzzle 48V 10Ah

    I did disconnect the small rca that I had attached to do some more testing there is no voltage (Zero) detected between the yellow positive that goes to bms (charging leads) and the green that goes to bms as my good friend mentioned if the charger is to detect some voltage to begin charging...
  15. efreak

    Golden Motor Silver Battery Box Repair Puzzle 48V 10Ah

    it was the charging ends on the battery not the output end that shorted . the rca connector, is it an isolated connector? I wonder i replaced with a regular rca an only green light on the chrger comes on when connected to the battery pack looks like an old antenna connector . may be this...
  16. efreak

    Golden Motor Silver Battery Box Repair Puzzle 48V 10Ah

    when the two charging wires on the battery touched and spark does that damage something on the bms in your opinion i 'll post a pic of the bms side of the pack it looks normal mind you it has shrink material covering most of the parts
  17. efreak

    Golden Motor Silver Battery Box Repair Puzzle 48V 10Ah

    I am going to check if i get a reading inside the box at the little rca connector solder points and carefully not short the charger. the seller has agreed to ship a connector for $20 i hope that fixes the problem i don't see any burn marks on the bms or anywhere else ty
  18. efreak

    Golden Motor Silver Battery Box Repair Puzzle 48V 10Ah

    Hello to all yet again and thanks for all the experts sharing and helping us newbs! I received this pack not long ago and during assembly the bike must have hit against something ever so gently at the black end of the battery pack where the charging rca (3/8 inch mount) plug is causing to...
  19. efreak

    Cross-Canada by Ebike

    Where are the Guinese people? The first person to travel Cross-Canada on an electric bike! ...really. Congratulations like I've said before You are to electric bike movement like the Gibson , Marshall , Fender and Hendrix to electric guitar so real honour and previlage to be able to...
  20. efreak

    Cross-Canada by Ebike

    Where are the Guinese people? The first person to travel Cross-Canada on an electric bike! ...really. Congratulations like I've said before You are to electric bike movement like the Gibson , Marshall , Fender and Hendrix to electric guitar so real honour and previlage to be able to...
  21. efreak

    Pics of my final 2100Wh Lithium battery project

    Man a work of art indeed great job and thanks for such details and neatness i could very well be battery pack making 101 .. sticki-fied and copied to basic battery and then some must read for any one planning on making pack themselves
  22. efreak

    a DC-DC to charge li-ion... GREAT!!

    i tried a 100k ohm resistor and a 10k ohm single turn pot. and the reading is between 3.53 volt to 3.58 so iam gonna need some more resistance i need a multi turn with some more kohms. perhaps 30 kohm these modules are 66 watt and a fuse per time to owork on the main charger soon although...
  23. efreak

    a DC-DC to charge li-ion... GREAT!!

    Again thank you very much flip what is the difference betwwen multi (12-- 25) turn pots and a single? i was thinking about using a 20 amp fuse in line from the main + supply to all four + wires to the modules . or do you suggest me using 4 fuses 1 per module like Docs picture? also i am...
  24. efreak

    a DC-DC to charge li-ion... GREAT!!

    Well friends I am learning ...but somehow i was using the top view instead of the bottom view... i was hooking positive in to negative in. Duh... any how i think i fried the one for sure ( that's why i guess a diode is a good idea Doc!) i hooked one module properly and saw 3.39 output...
  25. efreak

    a DC-DC to charge li-ion... GREAT!!

    Thanks again Flip Now I am wondering is it something that I am doing that needs to be looked at . do I need to add anything on the load end before testing the module? or is it over heating burning before i get a reading? in other word is there a safe way to determine health of modules...
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