Happy with it's performance
"I've been using this battery for more than two years and it has proved itself to perform well and be reliable. Have been using under what many would consider extreme conditions - dive light in 50 degree F or lower water"
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Tenergy 30049 18650 2600mAh 3.7V Protected Lithium Ion (Li-ion) Button Top Battery - Retail Card
Brand:Tenergy
MPN:30049
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$8.60
- Size: 18650
- Voltage: 3.7
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 2600
- Terminal Type: Button Top
$8.60
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Description
Tenergy 18650
3.7V 2600mAh Li-ion Battery
This high energy density and capacity lithium-ion battery from Tenergy is perfect for flashlights, 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 voltsFeatures 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
Item Details
| Brand | Tenergy |
| SKU | TENERGY-30049-18650-CARD |
| UPC | 844949005470 |
| Size | 18650 |
| Voltage | 3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 2600 |
| Chemistry | Li-Ion |
| Sub-Chemistry | LiCoO2 ICR |
| Shelf Life | 3 Years |
| Packaging | Retail Packaging |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
Specifications
| Size | 18650 |
| Voltage | 3.7 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 2600 |
| Terminal Type | Button Top |
| Protected | true |
| Integrated Charge Port | No |
| Equivalent Types | 168A, 18650, 19670, Protected 18650, Unprotected 18650 |
Unit Dimensions
| Length | 2.74 in (70 mm) |
| Diameter | 0.748 in (19 mm) |
| Weight | 1.94 oz (55 g) |
Documents
Additional Details
| Packaging | Retail Packaging |
| Warranty | Battery Junction Warranty |
| Return Policy | Return Policy |
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Reviews
Overall rating: 3.857143 / 5 from 7 reviews.
AI Generated Review Summary
Summary topics
Review topics: [charger, price, batteries].
Review highlights
Reviews
Tenergy 30049 18650 2600mAh 3. 7V Protected Lithium Ion (Li-ion) Button Top Battery
"Of all the batteries I have purchased from Battery Junction, these are the only ones I have had fail. Admittedly, they were charged and stored for sometime, but I have done this with other batteries without issue. As I didn't try them after charging, I can't say whether the batteries were bad from the start, or failed later. Wont do that again! To be fair I bought several of these, and some are still working fine, bu the failure rate was rather high. The price is attractive, but there is a downside"
OK
"Great item (so far) and even greater help by your sales staff who helped me select this item."
2 of 4 are kaput
"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."
awesome battery
"fits my gadget and holds a great charge"
Worthless
"These could not power the turbo mode of my nitecore p12 after a full charge with the nitecore i4. I am extremely disappointed."
Portable Powerhouse
"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"
