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55-Cent Li-Ion 14500 Cells: Too good to be true? - Page 2 — Parallax Forums

55-Cent Li-Ion 14500 Cells: Too good to be true?

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Comments

  • Cluso99Cluso99 Posts: 18,069
    edited 2014-12-21 15:58
    When I bought these there was free shipping. Yesterday I went to order another battery and also a box. One supplier no longer ships to Oz and the other now charges $29.
    So I found a new supplier on eBay. You always need to check the shipping as some make a killing out of this.
  • CuriousOneCuriousOne Posts: 931
    edited 2014-12-23 02:57
    There is no such thing as 6000mah 18650 cells currently. In best case, these will have 2000mah, but I expect more like 800mah. The best of the crop is Panasonic 3400mah cells, and they have non standard voltages, so require special protection pcb and charger, and I've not seen price lower than $15 ea for them.
  • RS_JimRS_Jim Posts: 1,765
    edited 2014-12-25 04:48
    erco wrote: »
    Seller sent one, not two cells per item. I emailed him and he says he will send more. A curious way to do business. Haven't checked capacity yet, cells weigh17 g each.

    Each cell was in a nice individual ziplock antistatic bag. This could mean either:

    1) Sellers are getting more responsible about battery shipping safety, or
    2) Cheap cells are known to leak electrolyte.

    No leakage yet!
    When we recycle rechargeable batteries, we are required to pack each cell into individual sealed bags. A pita if you have a 4 phone home phone system with 2 aaa batteries each.
    Jim
  • ercoerco Posts: 20,256
    edited 2015-01-06 19:38
    I received my extra cells today. No problem, seller made good after I pointed out the error.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2015-01-06 19:56
    erco wrote: »
    I received my extra cells today. No problem, seller made good after I pointed out the error.

    Very good to hear. I should have ten more on their way.
  • ercoerco Posts: 20,256
    edited 2015-01-06 19:59
    Just in time for me, I am building another bot tonight for a new swarm proposal. Need LOT$ of batterie$ to $wap out for $everal con$ecutive demo$.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2015-01-06 20:09
    erco wrote: »
    I am building another bot tonight for a new swarm proposal.

    I don't need to tell you, you're killing me with all your hints about super bots buts without giving us any details. If it were anyone else, I'd accuse them of being all talk and no substance. Since it's you, we're all dying to find out what these bots are like.
  • ercoerco Posts: 20,256
    edited 2015-01-06 21:03
    All in good time, my pretty!

    Ironically, I'm building more bots than ever now, but they are proprietary and I can't share. Bummer.
  • ercoerco Posts: 20,256
    edited 2015-04-19 19:29
    Here we go again. http://www.ebay.com/itm/2X-3-7V-1200mAh-14500-AA-Akku-Wiederaufladbare-Batterie-Lonen-Li-ion-Battery-SU-/221741246274

    If you order, immediately send seller a note reminding him that the listing is for 2 cells.
  • CuriousOneCuriousOne Posts: 931
    edited 2015-04-20 20:29
    So many bought, but no one measured capacitance?
  • ercoerco Posts: 20,256
    edited 2015-04-20 21:03
    How do you measure capacitance on a charged cell?
  • CuriousOneCuriousOne Posts: 931
    edited 2015-04-20 21:30
    As these are chinese cells with unknown and very small capacity, it be better referred as "capacitance" :D
  • CuriousOneCuriousOne Posts: 931
    edited 2015-04-22 22:04
    I've contacted seller and she confirmed that this lot is for one battery. Then I told her that she has to review listing title, or it might get reported to ebay and removed for improper listing.
  • CuriousOneCuriousOne Posts: 931
    edited 2015-04-27 11:04
    Anyone who ordered from this latest seller, how long it took to arrive?

    I've ordered several other items, and interested how fast it will deliver.
  • ercoerco Posts: 20,256
    edited 2015-04-27 11:34
    Standard 10-14 day shipping IIRC for the initial package, which was one cell of the two listed. Then I emailed the seller and they sent more batteries, another 10-14 days later.
  • CuriousOneCuriousOne Posts: 931
    edited 2015-04-27 12:26
    Thanks a lot!

    I've ordered a lot of items from ebay seller "tinxi-clothes", and more than month passed - no parcel arrived yet.
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