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CBJJ

CBJJ 3.7 Volt Rechargeable Battery 9900mAh 3.7V Battery 2 Pack High Capacity Batteries for Flashlight (Flat Top Type)

    • Based on 35 reviews
Condition: New
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This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by FuyinMY Technology
Arrives Jun 5 – Jun 12
Order within 19 hours and 33 minutes
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Size: 1 Count (Pack of 2)


Color: Flat Top 18650 Battery


Features

  • DimensionSize of Flat Top Type: 65*18*18mm(2.56*0.71*0.71inch). NOTE: Please confirm the battery size and battery type before purchase
  • High Capacity This 3.7 volt rechargeable battery is with 9900mAh large capacity, supporting stable power for your devices and effectively prevent damage of the devices, such a perfect replacement battery for used devices with high frequency
  • High PerformanceThese flat top batteries are rechargeable, supporting up to 1000 charging and discharging cycles without memory effect. Designed with multiple protections, such as overcharging, over-discharging and short circuit protection, ensuring safe and reliable use
  • Wide CompatibilityRechargeable 3.7v batteries are widely used in various devices, including flashlights, headlamps, path-lights, doorbells , power banks and more. Portable & lightweight items for home use and outdoor use
  • Warm ServiceAll of items have passed strict testing for normal use. If you have any question, please feel free to contact us, we'll reply email ASAP

Number of Batteries: 2 Lithium Ion batteries required. (included)


Brand: CBJJ


Battery Cell Composition: Lithium Ion


Recommended Uses For Product: Flashlight


Unit Count: 2.0 Count


Product Dimensions: 0.71 x 0.71 x 2.64 inches


Item model number: 3.7v-ft9902


Batteries: 2 Lithium Ion batteries required. (included)


Date First Available: August 14, 2023


Manufacturer: CBJJ


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 5 – Jun 12

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
  • Affirm Pay in 4
  • Affirm Financing
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  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • 1 out of 4 batteries dead
Size: 1 Count (Pack of 4) Color: 14500 Battery-Red
I bought this to replace the i o 6 Oral B battery. Out of the 4 batteries, 1 was dead.
Reviewed in the United States on September 6, 2023 by Arvin Jin
    • Buena
Size: 1 Count (Pack of 4) Color: 14500 Battery-Red
Es muy buena
Reviewed in the United States on September 16, 2023 by Radhames Lachapelle
    • They don’t last long! And degrade fast!
Size: 1 Count (Pack of 2) Color: Button Top 18650 Battery
These batteries are garbage. Can’t even last two hours of normal intermittent use for a nitecore headlamp!
Reviewed in the United States on October 1, 2023 by Lawrence
    • Long battery life
Size: 1 Count (Pack of 2) Color: Button Top 18650 Battery
long and strong light in my head lamp
Reviewed in the United States on September 7, 2023 by robo
    • Super Flashlight Battery
Size: 1 Count (Pack of 4) Color: 14500 Battery-Red
Got a 4 pack and 2 Flashlights. Difference in brightness is noticable for sure. Light enough to carry extras if needed in my backpack. Not sure I got the best charger, but does the job.
Reviewed in the United States on June 28, 2023 by David Cooper
    • Capacity is way overstated
Size: 1 Count (Pack of 4) Color: 14500 Battery-Red
After receiving the 4 pack of batteries, I replaced two cells in my solar lights and measured their voltage to determine their charge state and put them out in the bright daylight sun to be further charged. The terminal voltage indicated they were at least at 80-85 percent charged before further charging them in the sun for almost a day. A 2500 mAh cell that’s 80 percent charged would be what… 2000 mAh.. but, even if it had only 1000 mAh worth of charge, my run time would be doubled over a charged 500 mAh cell. The next morning they were not lit as I was hoping for. They replaced 500 mAh batteries and the lamps only needed a couple more hours of run time, so a charged 750 mAh cell would probably have worked if it really had that capacity when charged. So, long story short, these cells don’t have any where near their stated capacity, just can’t be. Also of note, I weighed each battery and found that two cells weighed much less than the other two of the 4 pack. So now I’m in the process of charging them up to see if their capacity may be different/better. ... show more
Reviewed in the United States on April 18, 2023 by Eric
    • Works but not at capacity rated.
Size: 1 Count (Pack of 2) Color: Flat Top 18650 Battery
Review Image by K. Williams K. Williams
I replaced a solar string battery that died with one of these. The battery was a 2000mAh and would run my lights all night in the summer. New battery is rated at 9900mAh and in theory should run 4x as long. I would take this to mean roughly 4 full nights on one charge. Got one full night, cloudy day charge, ran partial night. Not even two full nights. Best guess without an analyzer, maybe 2500mAh. I bought an analyzer charger and as you can see 964mAh ... show more
Reviewed in the United States on September 13, 2023 by K. Williams K. Williams
    • Capacity is 1/10 of Described. Pathetic. Totally Pathetic.
Size: 1 Count (Pack of 4) Color: 14500 Battery-Red
Item description says 25￵00m￵A￵h. Actual is about 1/10th of that, measured with a high-quality rechargeable battery analyzer (IQ-338XL Universal LCD Smart Charger/Analyzer). Both the capacity discharge, and the capacity charge are measured. Both at 500 mA. I test all of my rechargeable batteries as soon as I receive them. Worst rechargeable battery purchase I've ever made. Pathetic. Totally pathetic. A waste of my valuable time. ... show more
Reviewed in the United States on August 13, 2023 by Craig F.

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