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Tenergy 30016 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk

Tenergy 30016 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk
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Tenergy 30016 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk
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Tenergy 18650

3.7V 2600mAh Li-ion Battery

This high energy density and capacity lithium-ion battery from Tenergy is perfect for flashlights, electronic cigarettes, portable power devices or other devices requiring 3.7 volts. The 3.7 Volt 2600 mAh capacity provides a long lasting, efficient discharge for maximum runtime for your flashlight or other device. The lightweight 18650 cell has been tested by the IEC (International Electrotechnical Commission) standard to ensure capacity, quality, and life span, so there are no surprises. Also, this 18650 has been manufactured under the ISO9001-2000 standard to assure top notch quality. These 18500 supply three times the voltage of 1.2V AA NiMH or NiCd rechargeable batteries. The unique patented PCB design prevents voltages outside of 2.5-4.25 volts

Note: 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
  • Unique and New! With integrated PCB Protection!
  • Lithium Ion 18650 cylindrical rechargeable batteries
  • Button top terminal
  • 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 2450 mAh
  • Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V.
  • Dimensions:
    • Diameter 18+/-0.2 mm
    • Height 67+/- 0.2mm
  • Weight (Typical) Approx. 46 g
  • Nominal Voltage: Average 3.7V
  • Cut-off Voltage: 2.5V
  • Internal Impedance: less or equal to 180 mΩ (with PTC)
  • Cycle Performance: 90% of initial capacity at 400 cycles
  • Cycle life: > 500 cycles
  • Charge: Current = 0.5C, Voltage = 4.2V, End Current = 0.01 mA
  • Discharge: Current = 0.5C, End Voltage = 3.0V
  • Max. Charging current: 1.5C
  • Max. Discharging current 1.5C (for continuous discharge)
  • Data Sheet
Internal PCB Specifications:
  • Operation Voltage:
    • Minimum: 1.5V
    • Maximum: 10V
  • Excess Charge Detection Voltage:
    • Minimum: 4.2V
    • Typical: 4.25V
    • Maximum: 4.3V
  • Excess Charge Release Voltage:
    • Minimum: 4.0V
    • Typical: 4.05V
    • Maximum: 4.1V
  • Excess Charge Delay Time:
    • Minimum: 61mS
    • Typical: 77mS
    • Maximum: 93mS
  • Excess Discharge Detection Voltage:
    • Minimum: 2.437V
    • Typical: 2.5V
    • Maximum: 2.563V
  • Excess Discharge Delay Time:
    • Minimum: 7mS
    • Typical: 10mS
    • Maximum: 13mS
  • Excess Current Detection Voltage:
    • Minimum: 0.17V
    • Typical: 0.2V
    • Maximum: 0.23V
  • Excess Current Delay Time:
    • Minimum: 9mS
    • Typical: 13mS
    • Maximum: 17mS
  • Short circuit Protection Voltage:
    • Minimum: VDD-1.2V
    • Typical: VDD-0.9V
    • Maximum: VDD-0.6V
  • Short circuit Protection Delay Time:
    • Typical: 5µS
    • Maximum: 50µS
  • Consuming Current:
    • Typical: 3µA
    • Maximum: 6µA
  • Standby Current:
    • Typical: 0.3µA
    • Maximum: 0.6µA
  • Circuit Impedance:
    • Typical: 60µΩ
    • Maximum: 70µΩ
Battery Size:18650
Battery Capacity:2600mAh
Battery Chemistry:Li-Ion
Battery Voltage:3.6 / 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:1.623oz
Product Dimensions:2.638" (L) x 0.709" (Diameter)
Country of Origin:CN
Associated Battery Sizes:168A, 18650, 19670, Protected 18650, Unprotected 18650
11 Reviews
55% (6)
18% (2)
18% (2)
9% (1)
0% (0)
82% Recommend this product (9 of 11 responses)
By Glen
Greenville, RI
September 17, 2016
Great battery
Charges quickly and has a long life
ProsCharges quickly and long life
By Mike
July 12, 2016
Rechargeable Heaven
Bought these batteries for a new flashlight! I could not be happier with the batteries so far. Flashlight is brighter with the use of these batteries. I hope they last as long as the charge does!
ProsEasy to charge, easy to use!
By jason
allentown, PA
May 23, 2016
above moderate
2600 mah is mid road capacity....lasts a long time,,,higher mah means slightly longer runtimes...awesome price....choose your MAH based on your usage
Conshavnt found one
By Dave Jenkins
South Central Alaska
September 19, 2015
Cheaper than Amazon
Protected 18650 batteries at a better price than Amazon and faster shipping than Amazon Prime.
Quitman, TX
February 13, 2015
Tenergy 3.7 18650 2500mAh
It's O.K. but you can spent a little more and get a better Battery
By Greg
Woonsocket, RI
December 21, 2014
Lasts very well in a high draw application (flashlight ~300 lumens)
I've been using these for more than a year and I'm very pleased with the runtimes and quality of the units. I have not had a failure, leakage, etc. I am using the Tenergy charger for them. I don't have the ability to test the rated capacity, that would be nice to see. The longest I've continuously used my high-draw flashlight is maybe 15 minutes continuously because I don't much trust the heat sinking on it, but I'd estimate about a 2 hour runtime at roughly ~300 Lumens in my flashlight.
ProsAd advertised, long run time. Recharged dozens of times and use almost daily for a few minutes a day.
ConsNone noted.
By Gary
New Braunfels, Texas
September 9, 2014
Tenergy 3.7V 18650 2600mAh Li-Ion Rechargeable Battery
Excellent product at a reasonable price that was shipped immediately and arrived in a few days.
ProsAfter charging, this battery seems to last for quite a long time
ConsA storge case for extra batteries would be helpful.
By john
Niagara Falls, NY
August 15, 2014
worth the money
2600mAh of power and the price is right for these 18650 batteries.
By John
Kansas City, MO
May 25, 2014
Not quite sure
Ordered six of these batteries a couple months back. Having pretty good luck until apparently I try using one that I hadn't tried in any of my flashlights yet. Totally dead in three different flashlights and after trying to re-charge it twice. So make sure you check every battery of these you order right on the day you receive them. Or like me, you will be stuck with a brand-new battery that is worthless, and you won't have any recourse into sending it back for a replacement.
By Mark
United States
May 20, 2014
Worth the money.
I have 15 of these and use them regularly. I have all the big lights, such as the TN30, TN32, V5, Lynx, k5, etc. I use them and push them hard. Out of all the batteries I've had no problems with any of them. So for the money, they are not Eagletacs, but they perform pretty well, you can't out any battery and leave in a charger for months, treat your tools properly and they will work.
By Jerry
May 9, 2013
50% Great
I got four of the Tenergy 18650 button top batteries in September of 2012 (#30016). I have not used them much, since they are for a night search light. I have had them in a Sysmax Inlellicharge i4 for the past 8 months. Two of the four batteries have gone bad and will not charge anymore. One of the two is even distorted a bit. The other two seem to be working just fine. Of course, the warranty is three months.
1 Question & 1 Answer
from Baltimore MD asked:
October 7, 2014
Will this cell be safe to use in a 3x 18650 light O-light or is it a stand alone single cell design?
1 Answer
Yes, as long as the light light is compatible with Li-ion 18650 batteries.
Customer Service
on October 7, 2014

Tenergy 30016 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Bulk

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