26650 Protected 5200mAh Li-ion Rechargeable Battery 3.7V Orbtronic for High Power Flashlights

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26650 Protected 5200mAh Li-ion Rechargeable Battery 3.7V Orbtronic for High Power Flashlights

26650 battery Li-ion PROTECTED 3.7V by Orbtronic.

Real 5200mAh that will hold its rated capacity even under high current discharge load.
Free protective case included with each pair of 26650 batteries purchased.


Battery Specs: 

  • Cell Capacity: 5200mAh 
  • Cell Type: 26650
  • Dimensions: 26.5 mm x 68.8 mm (+/- 0.05mm) 
  • Full charge: 4.2V 
  • Recommended charging current: 2A - 3A CC/CV (Battery can be charged with current lower than 2A, but charging time will take much longer) 
  • Nominal voltage: 3.7V 
  • Cut-off: 2.5V 
  • Max. Constant Current Discharge 15A (Protection circuit - cut off at 15A) 
  • Weight: 97 g
  • Chemistry: Li-ion / Hybrid IMR 
  • Positive terminal: Wide Button Top 
  • Electronic External Protection: YES - full protection (overcharge, overdischarge, overcurrent (cutoff @ 15 Amp), short circuit) 



  • Do not try to fully discharge li-ion battery ( below 2.5V under load ).
  • Let this 26650 battery to charge fully to 4.2V before first use.
  • Never use force to install (insert) li-ion battery.
  • Do not use old and new battery cells together, or cells of different capacity / type.
  • Use only high-quality battery charger (we recommend SV2 charger | charging at 2 Amp).
  • 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- One month and longer).
  • 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.
  • Protected 26650 batteries are not made for e-cig (vaping) devices.


Protected 26650 battery is not made for e-cig vaping devices | because of its dimensions will not fit into box mod battery compartment.


What is in the box: 

Protected Orbtronic 26650 5200mAh Li-ion 3.7V Rechargeable battery.

Protective battery holder included with each pair of batteries. 

Safe packaging.

We usually ship the same business day including Saturdays (cutoff time 3 PM EST / Saturday 1 PM EST)


6 Reviews Hide Reviews Show Reviews

  • 4
    very happy.

    Posted by Yaniv Y. on May 2nd 2017

    The only issue was not accepting my credit card. but PayPal worked fine.

  • 5
    Excellent 26650 battery!

    Posted by Tino R. on Apr 25th 2017

    These are way better than anything else on the market right now. It makes my flashlight last much longer than the crappy cells it came with. OrbTronic really knows best how to package the best cells with the best circuits together to make a kick-ass product!

  • 5
    Power when needed

    Posted by Haskell on Apr 25th 2017

    Long lasting emergency power, well worth the price.

  • 5
    Beefy 26650

    Posted by Paul B. on Apr 11th 2017

    I have been using 2 orbtronic 26650 in a Thorfire S70 searchlight works great with this LED and the power is beyond my comprehension the output is blinding about 4 times brighter then a car headlight they are very well made inside and out 5200 Plus mh when fully charged. the pos terminal is thick metal and strong, worth the price and protected cell which is what I look for will buy more soon

  • 5
    26650 battery Orbtronic

    Posted by Joseph W. on Apr 10th 2017

    Good quality battery

  • 5
    An amazingly long lasting cell!

    Posted by Thomas E. on Mar 5th 2017

    I've been using my 26650 for over 6 months now. It has yet to die on me once! I run it in a generic Cree LED flashlight and I've run it continuously for nearly 10 hours straight. When I go to recharge it, it still has more than 50% charge! Great cell! I'd buy another, but I honestly only need the one that I have!

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