16650 Protected 3.7V Li-ion 2500mAh Orbtronic Rechargeable Battery - Replacement for 2x CR123A

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16650 Protected 3.7V Li-ion 2500mAh Orbtronic Rechargeable Battery
Introducing new, and powerful 16650 Protected Orbtronic Li-ion rechargeable battery cell.

Using 2 x CR123 flashlight? 


18650 battery too large in diameter to fit in your LED flashlight?


16650 Orbtronic protected battery is very good replacement for 2 x CR123.


Same diameter - longer run time.




  • Cell Capacity: 2500 mAh
  • Cell Type: 16650
  • Full charge: 4.2V 
  • Recommended charging current: 0.5 A - 1.5A  CC/CV 
  • Nominal voltage: 3.7V  
  • Cut-off: 2.5V 
  • Max. Constant Discharge: 5A Max.   
  • Dimensions: 16.55mm x 68.6mm
  • Weight: 40 g
  • Chemistry: Li-ion 
  • Positive terminal: Button Top
  • Electronic External Protection: Yes 

Protection will be activated if any of the following occurs:
Overcharge, Overdischarge, Overcurrent, Short circuit


  • Do not try to fully discharge li-ion battery ( below 2.5V under load ).
  • Let this 16650 battery to charge fully before first use.
  • Never use force to install (insert) li-ion battery.
  • Do not use unprotected (bare) batteries connected in series.
  • Use only high quality battery charger.
  • Do not expose to heat. 
  • Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts). 
  • Keep battery that is not in use in plastic holder (or any insulating [plastic] container).
  • Do not charge unattended.
  • Do not store your li-ion batteries fully charged (for extended period of time).
  • Store in cold and dry place at approximately 3.6V - 3.8V (storage charge).
  • After battery is discharged - don't leave it discharged => charge it as soon as possible.
What is in the box?
  • Orbtronic 16650 Protected Li-ion 2500mAh 3.7V rechargeable battery cell
  • Battery case provided with each pair of batteries purchased
  • Safe packaging 

6 Reviews Hide Reviews Show Reviews

  • 5
    Replacement for 2 cr123a's

    Posted by Charles K. on May 14th 2017

    Great service, battery is what was advertised and fit perfect.

  • 5
    Works Great

    Posted by Joeman21 on May 1st 2017

    Bought one to replace two CR123 primary batteries in my Bushnell Pro flashlight. I have not noticed any significant decrease in brightness or lower run time. So far, so good.

  • 5
    Good Batteries for Surefire

    Posted by Rommel L. on Apr 24th 2017

    Excellent in a Surefire host using Solarforce or Lumens Factory drop-ins.

  • 5
    Works great in My Surefire G2

    Posted by Thomas B. on Apr 10th 2017

    Works great in My Surefire G2 with a Malkoff M361N-LMH drop in.

  • 5
    Great Li-Ion Battery Cell used with Streamlight Polytac

    Posted by Guy on Jan 1st 2017

    I bought this cell to use with my Streamlight Polytac, which replaced the two CR123 cells that it typically uses. I've used mine over several months and must say it has been fantastic! I just bought two more Orbtronic 16650 Li-Ion cells and I'm ready to put them to use.

    Nothing but a great experience with this 16650 battery cell. I'm liking the the Orbtronic quality and price so much that I just purchased a 26650 battery cell for another flashlight.

  • 4
    Great replacement for 2 CR123 Batteries

    Posted by Christopher on Aug 6th 2016

    I have a couple of Quarks that are too tight a fit with 17650 batteries that these 16650 batteries drop right into and fit as well as a pair of CR123 primary batteries plus these have a longer run time. They also give a noticeably longer run time than a 17650 (which will fit in some of my Quark flashlights). These are Great batteries that fill a needed niche.

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