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  1. gameofbikes

    Think I messed up my battery or motor, help needed

    In the meantime, I received my 2nd battery from calibike today. I was hoping to be able to finally ride the bike but that's not going to happen today, because this one didn't come with Anderson connectors and I don't have spares on hand. This one has different dimensions (5 3/4" x 7 3/4" x 4...
  2. gameofbikes

    Think I messed up my battery or motor, help needed

    I contacted Rafe, the guy who runs calibike.com and explained the situation with my battery and included a link to this thread. Literally, within 30 seconds of me hitting send, I received a phone call from him. I really appreciate that very fast response from him. Basically he is going to send...
  3. gameofbikes

    Think I messed up my battery or motor, help needed

    Thanks. I'll contact calibike.
  4. gameofbikes

    Think I messed up my battery or motor, help needed

    I need to find out the next steps in getting the battery to work (if that is possible at this point). I don't know what a dead channel is, or if that is something that can be fixed. I've already stated multiple times that I don't know anything about electronics, and I posted very specific...
  5. gameofbikes

    Think I messed up my battery or motor, help needed

    When I do this, should the battery be switched on but not connected to the charger, as if I were about to use it on the bike? EDIT: I measured again, this time not connected to the charger, but the battery pack switched on: from B- to B14: 54.2V from P1- (where black discharge wire exits the...
  6. gameofbikes

    Think I messed up my battery or motor, help needed

    Here are the measurements, of voltage from (B-) to B1-B14: V (from B-) B0 (not taken, because I was told B- and B0 are the same voltage) B1 4.17 B2 8.35 B3 12.53 B4 16.71 B5 20.8 B6 20.8 B7 25 B8 29.2 B9 33.3 B10 37.5 B11 41.7 B12 45.9 B13 50 B14 54.2 And here are the calculated voltages...
  7. gameofbikes

    Think I messed up my battery or motor, help needed

    Perfect,t hanks for the info. I don't expect people do do simple addition for me, i can handle that.
  8. gameofbikes

    Think I messed up my battery or motor, help needed

    One thing I don't understand, is why there are 15 solder points there (B0 - B14). DO I measure all 15 -- black probe on B-, and then 15 separate measurements, with red probe on B0 - B14? Just waiting on the answer to this before I continue with measurements.
  9. gameofbikes

    Think I messed up my battery or motor, help needed

    Thank you, I really appreciate this, and any other safety tips. I will tape up the probes so only enough metal necessary to do the measurements is exposed.
  10. gameofbikes

    Think I messed up my battery or motor, help needed

    OK, so the "B-" marking on the PCB is right in between two solder points, I'm interested in the one that the thick black wire is soldered to right? I'll put the black probe from my multi-meter there, and the red probe at the B0 - B14 points. I understand that using this method the voltage will...
  11. gameofbikes

    Think I messed up my battery or motor, help needed

    It makes perfect sense now, thanks for the explanation, dnmun! 13S7P -- means 14 terminals total at the ends of the 13 series. Those are the 14 solder points labelled B0 - B14 in the 4th picture. And I guess the white thing in that pic is the sense wire plug. So I just need to measure voltage...
  12. gameofbikes

    Think I messed up my battery or motor, help needed

    Got it -- I should measure while the battery is switched on and connected to the charger. However, I'm not familiar with some of the terms you're using so I'm not sure how to proceed. Which is the "sense wire plug"? EDIT: To be clear, i know next to nothing about batteries and electronics. I...
  13. gameofbikes

    Think I messed up my battery or motor, help needed

    Oh, and is there any way to tell from the pics I posted if there is a balancing network present? What would I need to provide you to make that determination?
  14. gameofbikes

    Think I messed up my battery or motor, help needed

    How do I do that? Are the sense wire plugs the solder points in the 4th image, that are labelled B0 - B14 (15 total)? Would I put the red probe of the MM onto each one of those? And where would I put the black probe during each of those measurements?
  15. gameofbikes

    Think I messed up my battery or motor, help needed

    OK, here are the pics, I'll probably need more. There is a metal plate that can be unscrewed. Wanted to post initial opening up and see if there is anything I should avoid touching, and ask if someone can annotate some of the pictures with instructions on what the different parts are, if I...
  16. gameofbikes

    Think I messed up my battery or motor, help needed

    Thanks, d3veh. Is it also possible that rather than cells being unbalanced, a component is damaged, such as the BMS, or some piece of circuitry? Or does my 48.6V measurement act as a strong clue that the cells are unbalanced? If so, how? I'm curious to know why unbalanced cells would lead to...
  17. gameofbikes

    Think I messed up my battery or motor, help needed

    Ah that makes sense. When did you purchase the one without the network? Hopefully that's just something that was missing from older batteries? I'll post pictures later today.
  18. gameofbikes

    Think I messed up my battery or motor, help needed

    Just measured again after 4 more hours of charging (even though according to the charger, the battery is fully charged), the battery is still 48.6V. The output of the charger is 54.6V. I wrote 53.4V above as the spec for the charger's output but that was a typo, the charger says 54.6V --...
  19. gameofbikes

    Think I messed up my battery or motor, help needed

    Didn't the owner of calibike reply to your thread and state that it was using a BMS that *did* have balancing? I don't know enough to understand if that thread was conclusively settled, but it appeared as if Rafe made the claim that balancing was present, and that others agreed his claim was...
  20. gameofbikes

    Bafang BBS01 BBS02 CAD file?

    What would you need it for?
  21. gameofbikes

    Think I messed up my battery or motor, help needed

    The weird thing is that according to the lights on the charger, it's done charging. And I charged the battery for about 2 full days, and saw the light pattern on the ccharger change from "charging" to "charged" during that time, so that is consistent with the battery being fully charged. The...
  22. gameofbikes

    Think I messed up my battery or motor, help needed

    Done. I'm in Oakland, CA
  23. gameofbikes

    Think I messed up my battery or motor, help needed

    I was going to eventually order a 2nd one anyway, to have as a backup in case something goes wrong with the first, or if i need to make a 2nd or 3rd trip to campus in the same day and don't have time to charge the 1st battery. That's why I ordered the 2nd one. I was going to wait till the...
  24. gameofbikes

    Think I messed up my battery or motor, help needed

    I looked up what the lights on the charger mean, and when both red and green LED's are on it means the battery is fully charged. When it's Red/Red, it means it's charging. The lights are Red/Green right now, which makes sense because I charged the battery for a few days before the first time I...
  25. gameofbikes

    Think I messed up my battery or motor, help needed

    I think the battery already was fully charged before my short test ride. The ride was only about 20 seconds long so it should be fully charged. I charged it a full day with the battery in the on position, and then one day in the off position (wasn't sure which switch position was what at the...
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