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Ultrafire XSL 2600mAh Protected Rechargeable Li-Ion Battery 18650

Ultrafire 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk (ULTRAFIRE-XSL-18650-2600-PCB)
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Item #:ULTRAFIRE-XSL-18650-2600-PCB
Product Review:
Regular Price:$19.95
Sale Price:$7.95 & Free Shipping
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Ultrafire 18650 2600mah Protected Rechargeable Lithium Battery

Detailed Description:

The Ultrafire 18650 2600mah Protected cell features a button top making it particularly compatible with many flashlight applications.

Rechargeable Lithium batteries are rapidly becoming a very economical way to lower the operating costs of Lithium-Powered flashlights. We offer a number of different options in order to meet any rechargeable needs. These are Protected batteries.

These fully protected cells simplify usage with their integrated PCB. Perfect for your single cell application these cells are not for pack building as doing so will defeat the PCB protection which is matched to the correct voltage on a single cell. If you are building a pack please choose one of our other cells and the appropriate PCB.

Features and Benefits:
  • With integrated PCB Protection!
  • Lithium Ion 18650 cylindrical rechargeable batteries
  • Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V.
  • Unique PCB design and patent pending.
  • Higher energy density and lower weight than other types rechargeable batteries
  • Manufactured under ISO9001-2000 to assure quality
  • Battery tested based on International Electrotechnical Commission (IEC) standard to ensure capacity, quality and life time
  • Lighting or other device needing 3.7V power
  • Building portable power device needing high energy density and low weight
Product Specifications:
  • Capacity: Nominal&: 2600 mAh, Minimum: 2400 mAh
  • Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V.  UNIQUE INTERNAL PCB!
  • Dimensions:
    • Diameter 18.8+/-0.5 mm
    • Height 68.7+/- 0.5mm
  • Weight (Typical) Approx. 46 g yes
  • Voltage: 3.7V (also called 3.6V and 4.2V)
  • Cut-off Voltage: 2.5V
  • Internal Impedance: less or equal to 180  milliohm (with PTC)
  • Cycle Performance: 90% of initial capacity at 400 cycles
  • Cycle life: > 500 cycles
  • Charge: Current = 0.5C Voltage = 4.2 V End Current = 0.01 mA
  • Discharge: Current = 0.5C End Voltage = 3.0V

* Note: These higher capacity cells have a larger diameter than standard 18650's and may not fit all flashlights. Please verify dimension of flashlight or device. May not fit most Fenix flashlights.

WARNING: Use special caution when working with Li-ion cells, they are very sensitive to charging characteristics and may explode or burn if mishandled. Make sure the user has enough knowledge of Li-Ion rechargeable batteries in charging, discharging and assembly before use. Always charge in/on a fire-proof surface. Never leave charging batteries unattended. We are not responsible for damage if there is any modification of the batteries/chargers in any form or shape (including pack making). We are not responsible for any damage caused by misuse or mishandling of Li-Ion batteries and chargers. We only recommend using Lithium Ion rechargeable batteries with a control circuit (protection PCB) to assure safe charge, discharge, etc, use of lithium ion batteries without a protection circuit is potentially hazardous

More Information:

If you want high-quality, PCB protected rechargeable lithium ion batteries for your flashlight, consider Ultrafire 18650 XSL 2600mAh batteries. These batteries have a button top, making them compatible with many flashlights on the market. The protected nature of these cells makes them perfect for single cell devices. PCB protected batteries should never be used to construct battery packs. These batteries have been manufactured under ISO9001-2000 to assure quality. These cells have avoltage of 3.7V and a cut-off voltage of 2.5V.

Battery Size:18650
Battery Capacity:2600mAh
Battery Chemistry:Li-Ion Rechargeable
Battery Voltage:3.7V
Battery Terminal Type:Button Top
Battery Shelf Life:3 Years
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Country of Origin:CN
Ultrafire 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk (ULTRAFIRE-XSL-18650-2600-PCB)
4.5 Stars based on 12 Review(s)
Sonley R LeMay Jr
Corsicana, TX
4 Stars
I would recommend this item to a friend.

Nitecor P 12 1000 Lumen flashlight
June 28, 2015
Ultrafire fits the nitecore p 12 1000 Lumen flashlight. It is supposedly a replacement for two CR 123 batteries. But my other slightly lower lumen flashlights won't accept it.
Great battery that is rechargeable.
Won't necessarily fit other lights that use 2 CR 123 batteries.

Avid user
5 Stars
I would recommend this item to a friend.

Ultrafire 18650 XSL 2600mah Protected Button Top Rechargeable Lithium Battery Li-Ion
June 10, 2015
Great battery. Fits my high power headlamp with cree T6 led perfectly and the shipping from Battery junction was quick and inexpensive.
Long lasting charge, with 2600 mah

Spring Hill, FL
5 Stars
I would recommend this item to a friend.

Great Battery
May 13, 2015
Works wonderful I now own 6 of them they fit in all my different flashlights without any issues!
Price and the life of the battery

Lodge, SC
5 Stars
I would recommend this item to a friend.

March 19, 2015
I ordered wrong batteries for my flashlight. I found I had another flashlight that the batteries would work. They work fine.

United States
5 Stars
I would recommend this item to a friend.

Ultrafire just plain work.
March 2, 2015
As the head line says, these batteries simply do what I want, and haven't failed.
2600 mAh. The ones they replaced were 2400. Not a big deal for what I use em for, but the price is the same so why not?

Sutton, WV
5 Stars
I would recommend this item to a friend.

Rechargable Ultrafire-Great Battery
December 26, 2014
Good Battery, will continue to buy.

5 Stars
I would recommend this item to a friend.

Keeps it charge
November 26, 2014
Excellent for Value

5 Stars
I would recommend this item to a friend.

November 20, 2014
Must have!

4 Stars
I would recommend this item to a friend.

rechargeable 18650
August 27, 2014
Very good battery, but only fits some flashlights. Diameter is too big by a couple of mm to fit my streamlight or some other 123a flashlights
Long lasting charge
Diameter to big by couple of mm.

5 Stars

great battery
August 22, 2013
I bought two of these batteries about two years ago. I have recharged them numerous times they just won\'t die. I recommend them to anyone who needs a good reliable battery :)

Angelo Mysterioso
2 Stars

August 1, 2013
I bought 2 of these, the width is slightly oversized at the button end and they will not fit inside my battery tubes. Olight, Jetbeam, LumaPower... all are 18650 barrels and a big fat no go. Their customer service is excellent, I will call in the morning, I know they will make it right.

5 Stars

Good experience
June 4, 2012
I have had nothing but good experience with these - used them extensively in my M20 Warrior and they last a very long time on brightest output.

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This item is currently out of stock!
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Regular price: $3.95
Sale price: $1.75
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