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CWUU

CWUU 18650 Rechargeable Battery 3.7V 18650 Battery Li-ion Cell High Capacity Long-Lasting 9900mAh for Flashlight 1108 (4 Pack,Flat Top)

    • Based on 90 reviews
Condition: New
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Availability: Unavailable
Fulfilled by Changhui Technology
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Size: 1 Count (Pack of 4)


Color: Flat Top-18650


Features

  • Important NOTE - This is 18650 rechargeable battery lithium 3.7 volt. NOT AA Battery or AAA Battery. Please confirm whether the battery model required by your device is 18650.
  • Versatile Battery - 3.7 volt rechargeable battery 18650 is versatile and can be used for a variety of electronic devices, including LED torches, portable devices, headlights, toys and other household appliances.
  • Environmentally Friendly - 18650 rechargeable battery supports multiple charging and discharging cycles without memory effect, 1 pack rechargeable battery is equivalent to 1000 packs disposable batteries. Designed with multiple protection functions, such as over-charging, over-discharging and short-circuit protection, to ensure safe and reliable use.
  • Warm After-sales Service: If you have any problems, please feel free to contact us. We will solve the problem for you ASAP.

Number of Batteries: 4 Lithium Ion batteries required.


Brand: CWUU


Battery Cell Composition: Lithium


Recommended Uses For Product: Indoor


Unit Count: 4.0 Count


Batteries: 4 Lithium Ion batteries required.


Date First Available: October 18, 2023


Manufacturer: CWUU


Country of Origin: China


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • First Class Rechargeable Battery
Size: 1 Count (Pack of 2) Color: Button Top-18650
CWUU is a High Quality battery (little known brand) but it holds a charge twice as long as the other batteries I’ve used and lasts longer also. The lithium ion pile is very durable and well made. Thanks Amazon for selling this little known brand but high performance battery
Reviewed in the United States on December 3, 2023 by Daniel Smith
    • One battery Blew up!
Size: 1 Count (Pack of 2) Color: Button Top-18650
Review Image by Michael Jannetta Michael Jannetta
I purchased two of these 3.7V 18650 Rechargeable Battery Li-ion Cell batteries on October 14, 2023. I replaced the existing 18650 batteries in my LED Headlight. There was a small explosion while recharging my headlight on the evening of November 5. There was a loud bang, a big spark, and a horrible smell. Both batteries were ejected from the headlight battery holder. Only one battery blew up - see picture. I placed both batteries in a plastic bag and hauled them outside. I will be returning the batteries for a refund. ... show more
Reviewed in the United States on November 6, 2023 by Michael Jannetta Michael Jannetta
    • Works fine
Size: 1 Count (Pack of 3) Color: Flat Top-18650
Exactly what I ordered
Reviewed in the United States on December 10, 2023 by Nicki
    • These are good 3200mAh rechargeable 18650 batteries.
Size: 1 Count (Pack of 2) Color: Button Top-18650
These seem to be good batteries. Work in my Tac LED flashlight very well. Two for less than $15 is a good buy. I haven't used them long enough to evaluate their life though they already seem much better than the old battery they replaced. The description in the invoice says this is a 9900mAh battery. IT IS 3200mAh. Question any listing showing 9900mAh capacity. I am certain the CWUU was advertised as 32oomAh when I ordered it. It obviously is not. ... show more
Reviewed in the United States on October 25, 2023 by Stephen Burkhardt
    • Manufacturer mistake
Size: 1 Count (Pack of 2) Color: Button Top-18650
The media could not be loaded. Over all, I like these battery's and thier power. I'm using them in a green laser that helps align fence and posts. But, I did not buy them for that. I have a flashlight I use at night when walking the dog. The battery size is fine. But the positive anode (the round piece that sticks out and makes contact with the bulb area) is almost flush. So it would not work in a flashlight. I have no idea why they made it that way. If it had stuck out maybe 2/32nd more, it would probably be fine. The anode is actually flush with the battery case. ... show more
Reviewed in the United States on November 3, 2023 by Donald Lyons
    • Like a reboot
Size: 1 Count (Pack of 2) Color: Button Top-18650
Replaced the battery in a 10 year old device. Works like new.
Reviewed in the United States on December 1, 2023 by Mark C.
    • Paranoid camera weirdo
Size: 1 Count (Pack of 2) Color: Button Top-18650
I got these for night vision binoculars because I’m a paranoid camera weirdo and like to watch the cops watch me I know when they’re coming. Their batteries they recharge they work price was cheap. I mean their batteries what else can you say?
Reviewed in the United States on November 8, 2023 by Deadinsidedaddy
    • Terrible
Size: 1 Count (Pack of 2) Color: Button Top-18650
These lasted about 30 mins on the lowest setting of my headlamp like the 2200 mah original set last longer im gonna keep as lastresort but deff do not buy if you want long lasting bc there not!!!!
Reviewed in the United States on December 11, 2023 by Aj

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