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UltraFire FLB 18650 3000mAh 3.7V High-Capacity Protected Lithium Ion (Li-ion) Button Top Battery - Bulk

UltraFire FLB 18650 Standing
UltraFire FLB 18650 angle
UltraFire FLB 18650 side
UltraFire FLB 18650 rear
UltraFire FLB 18650 box
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UltraFire FLB 18650 Standing
UltraFire FLB 18650 angle
UltraFire FLB 18650 side
UltraFire FLB 18650 rear
UltraFire FLB 18650 box
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| Reg. Price $9.95
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Ultrafire 18650 - 3000mAh

Button Top Li-ion Battery

Heavy duty capacity 18650 battery for high drain devices

With tremendous capacity and value, the Ultrfire 3000mAh 18650 is a high powered li-ion battery that is perfect for demanding electronics such as tactical LED flashlights. These batteries feature 3.7 Volts of power and a top of the line 3000mAh capacity that will keep high drain electronics running longer than competing power sources. Combined with reliable manufacturing quality and bulk value pricing, the Ultrafire 18650 is one of the best deals when it comes to li-ion power.

PCB Protected

Equipped with the latest technology for complete safety

Each Ultrafire 18650 is outfitted with a uniquely designed PCB (printed circuit board) that functions as the brain of the battery, regulating output and intake of electrical charge. Thanks to the circuit board the battery is always safe to use and charge, as it will cut off the battery if the voltage drops below 2.5V or exceeds 4.25V. You can rest assure that your battery will perform perfectly every time since it's PCB protected!

Features & Benefits:
  • Lithium Ion 18650 cylindrical rechargeable battery
  • Internal PCB protection prevents under voltage (2.5V) or over-voltage (4.25V))
  • Higher energy density than competing rechargeable batteries
  • Manufactured under ISO9001-2000 to assure quality
  • International Electrotechnical Commission (IEC) standard tested to ensure capacity, quality and lifespan
  • Great for LED flashlights and high drain devices
  • Capacity: 3000mAh
  • Nominal Voltage: 3.7V
  • Cut-off Voltage: 2.5B
  • Internal Impedance: ≤ 180 Milli-Ohms
  • Cycle Performance: 90% of initial capacity at 400 cycles
  • Charge Cycles: 500
  • Charging Current: 0.5C (~1500mA) Voltage = 4.2 V End Current = 0.01 mA
  • Discharging Current: 0.5C (~1500mA) End Voltage = 3.0V
  • Dimensions:
    • Diameter: 18.6+/-0.2 mm *
    • 66.5+/- 0.2mm
  • Weight: 48g
  • * Note: These high capacity cells have a larger diameter than standard 18650 batteries and may not fit all flashlights. Please verify dimension of flashlight or device.

Battery Size:18650
Battery Capacity (mAh):3000
Battery Chemistry:Li-Ion
Battery Voltage:3.7
Battery Terminal Type:Button Top
Battery Shelf Life:3 Years
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:1.693oz
Product Dimensions:2.618" (L) x 0.732" (Diameter)
Country of Origin:CN
Associated Battery Sizes:168A, 18650, 19670, Protected 18650, Unprotected 18650
32 Reviews
47% (15)
25% (8)
6% (2)
16% (5)
6% (2)
53% Recommend this product (17 of 32 responses)
By tonyw
Odessa, TX
April 13, 2018
Ultra fire rechargeable bateries
Work great.
By jason
allentown, PA
March 28, 2018
grat price
good price for a 3000 mah battery...havnt been able to test it out to its max yet but judging by overall reviews I elected to try it...
Prosgreat prce is all so far
Consnone as of yet
By P.Y.
Dallas, TX
February 5, 2018
Do not last at all
Don't expect to get too much from this battery. It doesn't last at all and won't hold a charge after a few months. That's been my personal experience. You're better off buying a pair of CR123A lithium batteries - they would last longer! Seriously.
ProsKinda cheap.
ConsYou get what you pay for. And in this case, probably not.
By 3½¢
, N/W AR
January 23, 2018
So far, so good
Excellent quality and it does what it says it will do. Item came in a timely manner and Battery Junction kept me informed. I recommend this product & the company Battery Junction.
ProsBatteries working well
ConsNothing negative to say about this battery nor Battery Junction.
By P. Brady
November 30, 2017
Fit the bill
I needed to replace the very poor quality 18650 that came with a flashlight with something a bit better. This fit the bill nicely. With purchasing two of them, so I can have a charged spare, I should be in good shape to keep things illuminated when necessay.
6 Questions & 6 Answers
Guy Wood
from Grants Pass, Oregon asked:
October 22, 2014
Will these batteries fit the Nitecore P10 LED flashlight?
1 Answer
Yes, these UltraFire 18650 batteries do fit the Nitecore P10.
Customer Service
on October 23, 2014

from Fresno, CA asked:
August 31, 2014
Will this battery fit the Fenix HP30 headlamp?
1 Answer
Yes, this Ultrafire 18650 battery will fit and work in the Fenix HP30 headlamp.
Customer Service
on September 2, 2014

Jeff Sourbeer
from Belleair, Florida asked:
August 29, 2014
Will this battery fit the Fenix PD35 2014 edition?
1 Answer
Yes, this Ultrafire 18650 battery will fit and work in the Fenix PD35 2014 Edition.
Customer Service
on September 2, 2014

Allan abrazaldo
from North las vegas asked:
July 5, 2014
Will this battery fit the Nitecore HC50 and Nitecore EC25?
1 Answer
Yes, this 18650 battery will fit both the HC50 and EC25 lights.
Customer Service
on July 9, 2014

from San Gabriel, California asked:
June 29, 2014
Will this battery fit in the Nitecore Intellicharge i2 2-Channel Smart Battery Charger for Li-Ion, Ni-Cd,& Ni-MH by Sysmax?
1 Answer
Yes, this battery will charge in the Nitecore i2 Intellicharger.
Customer Service
on June 30, 2014

Nan Smith
from Great Lakes Area asked:
May 5, 2014
Will this battery work properly and FIT in an Olight M18 maverick or an Olight M22 Warrier?
1 Answer
Yes, this battery will work in both the M18 Maverick and M22 Warrior flashlights.
Customer Service
on May 5, 2014

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