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Nitecore NL1826 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Blister Pack

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  • Rechargeable batteries specifically designed to be used in and optimize Nitecore flashlights outputs and run times.
  • Protected Lithium Ion cells that prevent overcharging and discharging so that it can be recharged up to 500 times.
  • Nickel-plated S.S. protectors at both ends ensures high impact resistance and quality conductivity for a better performing battery.
  • High capacity of 2600mAh and output of 3.7 volts, this battery is ideal for high drain devices like flashlights, electronics, and more.
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Nitecore 18650 Li-ion Battery

NL1826 18650

3.7V 2600mAh

Nitecore has finally made their way to the battery party by offering their own batteries. These rechargeable 18650 batteries are perfect for high drain devices such as the intense LED flashlights from Nitecore, video game consoles, appliances, and more. The 18650 cells are protected from overcharging and discharging, so they can last you a long time. Being able to recharge the cells more than 500 times ensures you'll have power for all of your devices.

Safety First

You are Covered

The 18650 batteries are equipped at both ends with a nickel-plated S.S. protector ensuring high impact resistance, good electrical conductivity and oxidation resistance. To prevent against abrasion the cells are coated with a durable metallic film, as well as the circuit board being coated with tough plastic. The innovative anode was designed to resist high temperatures, while the microporous barrier protects the delicate internal components.

  • Battery Size: 18650
  • Voltage: 3.7V
  • Capacity: 2600mAh
  • Diameter: 0.7" (18.3mm)
  • Height: 2.7" (69.6mm)
  • Weight: 1.64 oz (46.7g)
Battery Size:18650
Battery Capacity (mAh):2600
Battery Chemistry:Li-Ion
Battery Voltage:3.7
Battery Terminal Type:Button Top
Battery Shelf Life:3 Years
Packaging:Retail Packaging
Warranty:Battery Junction 30-Day Warranty, Nitecore 1 Year Warranty
Return Policy:Battery Junction Return Policy
Product Weight:1.647oz
Product Dimensions:2.74" (L) x 0.72" (Diameter)
Country of Origin:China
Associated Battery Sizes:168A, 18650, 19670, Protected 18650, Unprotected 18650
18 Reviews
94% (17)
6% (1)
0% (0)
0% (0)
0% (0)
By Tom
Roselle, IL
Good Cell, Great Value on Sale
January 3, 2017
If you're like me, new to these new high tech power flashlights and cells, and remember the days of NiCad short shelf life, leakage, and poor cycle life, then you're skeptical about paying too much for cells you don't know will last. Fortunately there are enthusiasts who test and use these cells and lights extensively and share their results. Even then, even when we're convinced and more comfortable with the capability and endurance of ICR, IMR, and primary Lithium cells, we're still skeptical about brands. Certainly what it takes to design, and, more importantly to make these cells requires expertise, equipment, processes, and controls that few manufacturers have mastered around the world. That being the case, it is less likely that major name branded cells will suffer from poor lot to lot variance in capacity, current handling, shelf life, service life, and cycle life. We might tread cautiously with brands whose name we don't recognize, but we can depend that cells branded with the flashlight maker's name will both fit and function in their lights. So that's the first step, and that's what I did in buying a second Nitecore 18650 2600mAH cell to match that included in Nitecore's combo HC30 Kit.
Fit and finish of the cell is fine. Charged with no issues in the Combo Kit's i2 charger. Works, delivering the power of the HC30 light. Amazing power potential for all manner of technology gear. I chose the 2600mAH again from the fear of the bleeding edge... I'd rather have two 2600mAH at a sale price than a 3600mAH at a higher price despite the potential of run time difference. Now if I used a light on high for hours a day, I'd likely have chosen differently. Still, in this point in time it is possible that even Nitecore's and more likely other branded cells of high capacity might actually not fit. Especially when starting out, buying the same one that was originally included is only being wise. And watching buyer feedback about what fit and what didn't in what, or what fit but didn't work in this or that is only wise. I intend to try an Xtar's cell next unless name branded cells go on sale for less.
  • Same cell bundled with Nitecore Combo Deals - gives confidence in fit and function
  • Light manufacturer's name branded cell - gives confidence in capacity, current carrying, shelf life, service life, and cycle life
  • Charged up fine in combo i2 charger; works perfectly fine in HC30 Headlamp
  • Adequate capacity for a reasonable run time at mid range brightness and infrequent use
  • A premium price compared to cells not branded with light manufacturers' names
By Mark
January 11, 2023
I bought two of these specific batteries for my flashlight and they are exactly what I wanted. Website was helpful. Price was great. Shipping was fast. (I also liked the free small key chain flashlight included with my order). Very happy.
By Tom55st
Long lasting
July 23, 2019
Love this battery, Fast charging, long lasting. Made my flashlight brighter then the old battery.
By BK B.
Great battery for a good price and they seem to last a long time between recharges!
December 20, 2018
I like the Nitecore brand and know they cost more but it is a higher quality and I expect it to last longer than the cheaper no name brands!
By Rick
Indian Trail NC
Strong battery
May 14, 2018
Ordered sever of these with the dual charger to always have charged batteries when needed. They seem to last as advertised.
4 Questions & 4 Answers
from ottawa asked:
May 9, 2015
I have an Olight that uses four CR123A batteries. Do these batteries equal two 123 batteries? Would two 18650s be equal to the four CR123A used in my light?
1 Answer
Yes, two CR123A batteries are equivalent to one 18650 battery, so you would be able to use two 18650s in the place of four CR123As. Please make sure your flashlight is compatible with rechargeable Li-Ion 18650 batteries.
Submitted by: Customer Service on May 11, 2015

from Charlottesville Va asked:
November 29, 2014
Will battery work in a Fenix PD35 and a Fenix TK15?
1 Answer
Yes, this battery with work at both of those flashlight are compatible with 18650 li-ion batteries.
Submitted by: Customer Service on November 30, 2014

Matt D
from Boston, MA asked:
September 23, 2014
What is the amp rating on this cell?
1 Answer
The max discharge rate of the 2600mAh 18650 is 5A.
Submitted by: Customer Service on September 26, 2014

from Alexandria, VA asked:
June 15, 2014
Is this battery compatible with the Klarus RS11?
1 Answer
Yes, this Nitecore 18650 is compatible with the Klarus RS11.
Submitted by: Customer Service on June 16, 2014

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