18650 Rechargeable Battery 9900mAh High Capacity 3.7Volt Li-ion Batteries for Led Flashlight Headlamp (Button Top, 2 Pack)
Condition: New
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FREE 30-day refund/replacement
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 4 left in stock, order soon!
Arrives
Monday, May 11
Style: Buton Top
Size: 2 Pack
Features
- Button Top Size67*18*18mm(2.63*0.7*0.7inch). NOTE: Please confirm whether the battery size and battery type before purchase
- Wide Compatibility18650 rechargeable battery is compatible with versatile devices, such as headlamps, flashlights, doorbells,cameras, mini fans,toys and other electronic devices.Helps you quickly wake up your devices at any time
- High PerformanceLong lasting 9900mAh battery has no memory effect. Full charge and discharge cycle over 1000 times.With no need to replace batteries frequently, you can enjoy a longer usage experience and easily meet the needs of your device
- Safety Protection18650 battery has built-in multiple protection functions, such as under-voltage protection, over-voltage protection, over-current protection, over-temperature protection, short-circuit protection, and anti-reverse connection protection to stabilize the battery, so you can use it without any worries
- Warm tipsPlease fully charge the battery after receiving the BATTERY, when the battery is too low, please charge it in time, which will help to extend the number of times the battery is used
Brand: BENKIA
Recommended Uses For Product: Indoor/Outdoor
Unit Count: 1.0 Count
Reusability: Rechargeable
Model Name: XX-7Y36-BW5J
Product Dimensions: 2.56 x 0.7 x 0.7 inches
Item Weight: 2.39 ounces
Date First Available: December 24, 2024
Manufacturer: BENKIA
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, May 11
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.
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
Learn more about financing & leasing here.
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Top Amazon Reviews
Style: Buton Top
Size: 2 Pack
Works as well as the original.
Reviewed in the United States on February 25, 2026 by Betty Shelton
Style: Buton Top
Size: 2 Pack
These batteries work great in my old three light LED headlamp. I charged them up, and used the headlamp. I put them back on charge and was quite happy. Problem is, I left them charging overnight and blew them both out. So, I have to reorder them. Bummer. Up side is they work, they came quickly and I am ordering again.
...
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Reviewed in the United States on February 10, 2026 by Timothy L.
Style: Buton Top
Size: 2 Pack
Seems to work great
Reviewed in the United States on February 21, 2026 by Dusty Evans
Style: Buton Top
Size: 2 Pack
Perfect size for what I was looking for
Reviewed in the United States on March 12, 2026 by LORI J
Style: Buton Top
Size: 2 Pack
I purchased two of these “9900 mAh” 18650 batteries and fully charged both to 100% before installing them in my device. In real‑world use, they performed far worse than my regular 3500 mAh cells. Instead of lasting through the night, these drained much faster and couldn’t keep my device powered for even a single full night. Based on this experience, the advertised capacity appears unrealistic, and the batteries don’t deliver the performance expected. I would not recommend them.
...
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Reviewed in the United States on February 6, 2026 by Netvet
Style: Buton Top
Size: 2 Pack
Fit perfectly, took a charge well and are now working on the flashlight.
Reviewed in the United States on February 9, 2026 by J. Rasmussen
Style: Buton Top
Size: 2 Pack
Good pricing
Reviewed in the United States on February 4, 2026 by EDward
Style: Buton Top
Size: 2 Pack
Lasted for years. I keep extra to use while charging.
Reviewed in the United States on February 20, 2026 by Lana Cooksey