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Tenergy 30006 Li-Ion 18650 3.7V 2600mAh rechargeable battery - Flat Top

Tenergy 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Flat Top Battery - Bulk (30006)
Tenergy 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Flat Top Battery - Bulk (30006)
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Item #:TENERGY-30006-18650-PR-FL
Product Review:
Regular Price:$15.95
Sale Price:$7.95 & Free Shipping
With Orders Over $50!
1 - 3$7.95 ea.
4 - 19$7.60 ea.
20 - 49$7.50 ea.
50 - 99$7.40 ea.
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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 18650 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
  • Flat 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
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)

Internal PCB Specifications:

Parameter Minimum Typical Maximum Unit
Operation Voltage 1.5 10 V
Excess Charge Detection Voltage 4.2 4.25 4.3 V
Excess Charge Release Voltage 4 4.05 4.1 V
Excess Charge Delay Time 61 77 93 mS
Excess Discharge Detection Voltage 2.437 2.5 2.563 V
Excess Discharge Delay Time 7 10 13 mS
Excess Current Detection Voltage 0.17 0.2 0.23 V
Excess Current Delay Time 9 13 17 mS
Short circuit Protection Voltage VDD-1.2 VDD-0.9 VDD-0.6 V
Short circuit Protection Delay Time 5 50 μS
Consuming Current 3 6 μA
Standby Current 0.3 0.6 μA
Circuit Impedance 60 70

NOTE: 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 need a high-quality rechargeable battery to use in a single cell application, consider the Tenergy 30006 lithium ion 18650 3.7V batteries. These flat top fully protected batteries have a capacity of 2600mAh. The flat top terminal and internal PCB protection are incorporated to prevent under voltage at 2.5V and over voltage at 4.25V. The unique PCB design on these cells is Patent Pending. These Tenergy 30006 cells are higher energy and lower weight than other rechargeable batteries and these batteries should only be used in single cell applications rather than for building power packs.

Battery Size:18650
Battery Capacity:2600mAh
Battery Chemistry:Li-Ion Rechargeable
Battery Voltage:3.7
Battery Terminal Type:Flat Top
Battery Shelf Life:3 Years
Warranty:Battery Junction 30-Day Warranty
Return Policy:Battery Junction Return Policy
Product Weight:1.62oz
Country of Origin:CN
Tenergy 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Flat Top Battery - Bulk (30006)
3.5 Stars based on 11 Review(s)
Bertram, TX
2 Stars

Too big
December 18, 2014
These batteries are larger tan standard 18650's both in length and diameter. The large size of these batteries does not allow them to fit into flashlights or anything else that takes 18650's. Completely useless and a total waste of my money.
Too big, makes them useless

5 Stars
I would recommend this item to a friend.

good battery
December 8, 2014
It's a good cell. The one I got had a different label was not a flat top cell it was a button top, at least the one I got was.
it's protected with a pcb bottom plate

Gary Clements
United States
1 Stars

not the best
September 11, 2014
These batteries are a little bit longer and bigger around, won't fit my mod so beware.
Not the same size as Panasonic or standard 18950 batteries

4 Stars
I would recommend this item to a friend.

Solid cell; good value
August 25, 2014
For the price, the Tenergy cells are a good value. Just be aware that despite the name - 18650 - these are a bit wider and taller, and in some lights it's enough to matter. This *is* mentioned in the description, but if you're old school like me and remember when they really were 18x65mm, this might come as a surprise if you haven't read the fine print.

Niagara Falls, NY
5 Stars
I would recommend this item to a friend.

Great Battery
August 21, 2014
Great Battery for high drain devices, and the price is awesome. And does have 2600mAh as stated on the battery .

Niagara Falls, NY
4 Stars
I would recommend this item to a friend.

Great Price and Power
August 13, 2014
Power was there with 2600mAh this flat top protected pcb lithium ion and great for the price. People on tight budget take notice.
power and for the money can not be beat.

1 Stars

Incompatible flat top terminal
September 6, 2012
These have an unusual flat-top terminal - they do not work at all in a Nitecore TM11 (Tiny Monster).

Steve Briggs
2 Stars

Not Worth It
August 30, 2012
I bought some of these batteries and some others from same company (they were even more inferior). Totally not worth it for my needs. I thought flashlights I bought were messed up but finally purchased same sized batteries made by another company (I think it was samsung or sanyo: google reviews to find the best): and the flashlights worked for more than the 3 minutes that these batteries gave.

5 Stars

18650 Tenergy
February 8, 2011
These cells are really good. I left one in a Lumapower M1 for about a year. expected the cell to be dead but when i switched it on.. Power!. Good run time too.

Mohamed Faramawy
5 Stars

Li-ion Battery
November 24, 2009
Great battery for Pronto TSU9600 remote control

5 Stars

April 10, 2009
These are great! I charged one up and it sat in a cool dry place for 5 weeks and held it\'s charge!

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