Results 1 to 6 of 6
  1. #1
    Cleavage Of The Tetons
    Reputation:
    Join Date
    Jan 2004
    Posts
    4,830

    Battery advice, (probably a repeat) best 18650 li-ion?

    Are these worth trying, or do you have to spend $12.00 a cell for a quality 3600/4200 or what have you?
    USA Seller! - 2X Li-Ion Batteries Ultracell 4200nAH 3.7Volt 18650 W/ Tabs | eBay

  2. #2
    mtbr member
    Reputation:
    Join Date
    Apr 2010
    Posts
    488
    Buy Panasonic, Samsung, Sanyo .... Whatever! Just don't go buying 4200 maH cells No room for this chineese **** in your home!

    And yes, ..... it's worth spending 12$ a cell so your house doesn't burn down.

  3. #3
    mtbr member
    Reputation: mattthemuppet's Avatar
    Join Date
    Jul 2004
    Posts
    2,301
    at a guess, those will be between 1000 and 2000mAh (at best) and be completely unable to cope with high current draws (over 1A). I wouldn't buy any no-name brand off eBay (especially anything with Ultra or Fire in the name), they're simply a waste of money.

    If you want decent, high capacity and reliable cells,
    NEW 2X Panasonic 18650 3.6V 3100mAh Rechargeable Li-ion Battery, 2 NCR Batteries | eBay would do the job perfectly. Good seller too.

  4. #4
    mtbr member
    Reputation:
    Join Date
    Jun 2010
    Posts
    201
    Check out the 2012 18650 battery test review.

    59 batteries at last count

    2012 technology is not able to fit 4000 to 5000 mAH of energy into an 18650 battery. To the seller of those 4200 mAH batteries, I only have one thing to say "Liar liar pants on fire"
    Last edited by ThinkBike; 10-07-2012 at 03:55 PM.

  5. #5
    mtbr member
    Reputation: Ofroad'bent's Avatar
    Join Date
    Jul 2010
    Posts
    957
    Quote Originally Posted by mattthemuppet View Post
    at a guess, those will be between 1000 and 2000mAh (at best) and be completely unable to cope with high current draws (over 1A). I wouldn't buy any no-name brand off eBay (especially anything with Ultra or Fire in the name), they're simply a waste of money.

    If you want decent, high capacity and reliable cells,
    NEW 2X Panasonic 18650 3.6V 3100mAh Rechargeable Li-ion Battery, 2 NCR Batteries | eBay would do the job perfectly. Good seller too.
    Matt, are you using these without protection (so to speak)? I suspect it should be fine using a Taskled driver and an Accucell charger, no?

  6. #6
    mtbr member
    Reputation: mattthemuppet's Avatar
    Join Date
    Jul 2004
    Posts
    2,301
    yep, that's how I use them. The ones I bought for a friend are in a 1S2P pack, so he charges them using a MS cable wired into a DX 18650 charger. Funnily enough, it's taken him a year to figure out that the LED flash means 1/2 discharged and not TURN OFF NOW I'll probably use a PCB in my next light though.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •