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  1. ururk

    Dead battery?

    I don't know why the edges look so bad. Will do later tonight.
  2. ururk

    Dead battery?

    It was shelved - so it mush have discharged on its own.
  3. ururk

    Dead battery?

    Understood. I think there is a plastic coating on the battery tabs... tomorrow I'm going to remove all the tape from the left pack, and try to identify any puffed or pierced cells, and note exact voltages. It will be tricky/dangerous (assuming full current) to do this, but I'll be careful.
  4. ururk

    Dead battery?

    I wasn't worried about it exploding/catching fire while measuring voltage... I'm just trying to figure out where to store it from now on. It looks like there are 3-4 cells hooked up together - each group (wired in parallel it seems) has a voltage around 3.2v. There is one puffed cell - it is...
  5. ururk

    Dead battery?

    39.31v across the two discharge leads.
  6. ururk

    Dead battery?

    Yes... will do. (should I be concerned about the pack catching fire? I think by this point it would have. They are supposed to be LiFePo4)
  7. ururk

    Dead battery?

    Biggest question - how to determine what cells are good/bad. Do I just remove the rest of the duct tape, and then wipes the cells off? Then, if the cells discharged too much, how would I go ahead with checking each cell? I have the chargers for the packs, but nothing to charge a single cell.
  8. ururk

    Dead battery?

    So... late last summer I purchased a battery. However, because of when I finally got all my parts together, I really hadn't had enough time to assemble, test, etc... the electric bike. I shelved all the parts, including the battery. After some downtime this summer (it has been wet, cold, and not...
  9. ururk

    E-bike law - Ann Arbor, Michigan

    By bike path, do you mean "dirt bike path" or paved bike path... or both?
  10. ururk

    E-bike law - Ann Arbor, Michigan

    My email:
  11. ururk

    E-bike law - Ann Arbor, Michigan

    So I emailed the local government, and this was their response: Which I sort of knew, but didn't really want to ask.
  12. ururk

    E-bike law - Ann Arbor, Michigan

    No need to restrict it per-se... as your comment is very helpful. However, I was hoping to have a targeted discussion that didn't wander as threads are likely to do :D So, did you call them, or stop by? I'm doing the build over the weekend, and will hopefully have it running by Monday... I have...
  13. ururk

    Why not a Sidewalker?

    Regarding the "pistol" cases, I bought a Pelican case. Pelican's site has a nice case calculator. As for where to buy... you can get Pelican cases inexpensively on the net, just have to google a bit. I got one from here: http://www.storesonline.com/site/529271/ and was able to pay via PayPal...
  14. ururk

    E-bike law - Ann Arbor, Michigan

    So, since all my ebike parts arrived, I'm in process of putting it together. However, I decided to look into what the laws and regulations on ebikes were in MI. So as to not rehash *everything* that is posted on the various forums, I'm kind of only interested in what MI regulates, and am not...
  15. ururk

    Ping 2.0 Reports

    I didn't. Plus, it took only 3 or 4 days to arrive (Michigan).
  16. ururk

    Ping 2.0 Reports

    I guess I could check with Ping, but I ordered a pack direct from him (36v, 12Ah), and it came with black duct tape (gaffers tape perhaps), and the BMS was in a yellow shrink-wrap tube. Either way (v1, v2), I'm sure it will work out all right. I'm not entirely sure the benefits of the newer...
  17. ururk

    Connecting up a Ping battery...

    I just got my Ping battery, plus two chargers (I ordered an extra one). The battery has three leads - Positive (red) Negative Discharge (black) Negative Charge (green?) And the chargers have three prongs - +, -, ground. Now, I know how to hook this up to my Crystalyte motor (red to red, black...
  18. ururk

    Comuta Van

    I've seen one of those in Ann Arbor! Always wondered what it was.
  19. ururk

    LiFePO4's on eBay

    This auction seems like a good deal: http://cgi.ebay.com/36v10ah-LiFePO4-battery-scooter-electric-bike-bicycle_W0QQitemZ290239913885QQihZ019QQcategoryZ11332QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Cost-wise, it is about the same as a Ping battery (Ping sent me an estimate). However... I'm not too...
  20. ururk

    Ultra Motor Light Electric Vehicle

    Nice looking ebike, but that eBay classified is a bit deceiving - in order to get the 40 miles, you'd need to add a secondary battery pack.
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