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4 Pack 18650 Rechargeable Battery 3.7V Lithium Batteries 9900mAh Flat Top for Flashlights, Headlamp, Doorbells

  • Based on 14 reviews
Condition: New
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$16.98 Why this price?

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Returnable until Jan 31, 2026

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: Unavailable
Fulfilled by Shiqi Technology
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Size: 4 Pack


Features

  • High Capacity Lithium BatteryInclude 9900mAh 3.7v rechargeable I865O flat top batteries, delivering stable performance
  • Wide compatibility: The size of this battery is 2.55*0.7inch, it can be well compatible with 3.7V universal I865O battery charger slot, will not be loose, fit for all kinds of household battery powered devices
  • Intelligent Protection:Our 3.7v I865O rechargeable battery is equipped with intelligent protection chip to make sure no leakage or expansion.
  • Long Cycle LifeOur rechargeable batteries use high energy polymerization technology and can be charged and discharged up to 1500 times.
  • Warranty and ServiceEach battery is tested through 3 layers before shipment, if you have any questions feel free to contact us to give you a satisfactory answer

Number of Batteries: 4 Lithium Ion batteries required.


Brand: Generic


Battery Cell Composition: NiMH


Recommended Uses For Product: Indoor/Outdoor


Unit Count: 4.0 Count


Item model number: FTSH


Batteries: 4 Lithium Ion batteries required.


Date First Available: March 21, 2025


Manufacturer: Generic


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great
Size: 4 Pack
Great batteries
Reviewed in the United States on November 3, 2025 by Leslie M.
    • Great batteries!
Size: 12 Pack
Great batteries I use them in my fpv googles and in my radiomaster pocket they have a great run time.
Reviewed in the United States on November 9, 2025 by Chilly
    • Not the best choice
Size: 4 Pack
Not the best. They work fine but don’t hold a charge as long as similar batteries that I’ve had in the past. I’m have to recharge them pretty regularly (every couple of weeks) whereas my old ones lasted a couple of months.
Reviewed in the United States on October 31, 2025 by K. Osborne
    • False advertising
Size: 16 Pack
These are 3300mAh at best, I was able to charge them from dead to full within an hour. Haven't even bothered to use them yet, but I'll update when I do.
Reviewed in the United States on November 5, 2025 by Vaughn
    • Perfect solution
Size: 4 Pack
Perfect for Solar rechargable lights!
Reviewed in the United States on November 14, 2025 by Don Gardner
    • Keep looking
Size: 4 Pack
Battery life is garbage. All 4 drain much faster than any of my other 18650 batteries
Reviewed in the United States on November 15, 2025 by Sean Peters

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