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Tenergy 30049 Li-Ion 3.7V 2600mAh rechargeable battery - Retail Card

Tenergy 30049 Li-Ion 18650 3.7V 2600mAh rechargeable battery Button Top FULLY PROTECTED with PCB Lithium Ion Retail Card
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Item #:TENERGY-30049-18650-CARD
Product Review:
Regular Price:$9.95
Sale Price:$7.95 & Free Shipping
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1 - 5$7.95 ea.
6 - 19$7.75 ea.
20 - 59$7.50 ea.
60+$7.45 ea.

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

Features and Specifications:
  • PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25V
  • 3.7V 2600 mAh capacity
  • Higher energy density and lower weight than other rechargeable batteries
  • Manufactured under ISO9001-2000

WARNING: Use 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 prefer to have your rechargeable battery in a retail card, Tenergy lithium ion 18650 batteries are available in that packaging. The Tenergy 30049 lithium ion 18650 3.7V 2600mAh rechargeable batteries are fully protected with PCB lithium ion and should only be used in single cell applications. The retail card makes these cells attractive to retail buyers. These batteries have been designed for use primarily in flashlights and the PCB protection protects the cells from under and over voltage.

Tenergy 30049 Li-Ion 18650 3.7V 2600mAh rechargeable battery Button Top FULLY PROTECTED with PCB Lithium Ion Retail Card
4 Stars based on 5 Review(s)
B. L. Doud
Jasper, AR
5 Stars
I would recommend this item to a friend.

March 1, 2015
Great item (so far) and even greater help by your sales staff who helped me select this item.

3 Stars

2 of 4 are kaput
December 23, 2014
I purchased 4 batteries and have been using them in several flashlights. I have not used them a lot so I finally decided to charge them (second time). 1 is not charging correctly, and 1 discharges just sitting on the counter. I tried out my new digital nitecore charger with the batteries. Took 3 out for about 4 hours and let it sit. now 1 needs charging. I still have one in the charger at 3 bars (since yesterday), but I have moved it to several slots in case it was an issue with a slot. I broke out my Fenix charger in case there is something going on with the new charger. Going to try that. But hey, good news, 2 our of 4 are fine.
the two that charged normally work fine in my different flashlights. Hold a good charge and works for a good amount of time.
50% work, poor odds when purchasing.

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

awesome battery
November 26, 2014
fits my gadget and holds a great charge
holds a great charge
a tiny bit thicker than other batteries this size

1 Stars

May 28, 2014
These could not power the turbo mode of my nitecore p12 after a full charge with the nitecore i4. I am extremely disappointed.
Merchant Response:
We are sorry to hear you may have gotten a defective battery. We have gotten back a lot of positive feedback on this cell and know that it works to fully power compatible flashlights. Please contact Customer Service here to troubleshoot your problem or exchange your battery for a replacement. Thank you.
They have not exploded yet
They cannot power turbo mode in a small light

5 Stars

Portable Powerhouse
August 9, 2012
Great price on quality Powerful batteries. Tenergy keeps making more quality cells and these are no exception. they charge with not trouble and work in my 18650 lights with no problems. good deal

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