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2 Pack 3.7 Volt 18650 Rechargeable Battery 3400mAh 18650 Flat Top Battery 18650 Li-ion Battery for Flashlight, Headlamp

  • Based on 91 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Feb 6
Order within 5 hours and 1 minute
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Size: 2 Pack


Style: Flat Top


Features

  • Product Dimensions: 65*18*18 mm/2.56*0.71*0.71 inch. NOTE: These are FLAT TOP 18650 batteries. Please confirm the battery size and battery type before purchase
  • Wide Compatibility: Widely used for LED flashlights, solar lights, racing, game controller, emergency lights, portable devices, headlamps, toys, remote controls, doorbells and other electronic devices.
  • Advanced Smart Cell Technology: The built-in intelligent battery cell ensures efficient power management and longer-lasting usage.
  • Safety Certifications: Trust in the quality and safety of our battery, certified by CE, FCC, PSE, ROHS, and UL standards.
  • Protective Mechanism: Built-in protection features safeguard your device from overcharging, overheating, and short circuits.

Description

Battery

Brand: AFSONGOO


Battery Cell Composition: Lithium Ion


Battery Capacity: 3300 Milliamp Hours


Recommended Uses For Product: Phone


Unit Count: 2.0 Count


Package Dimensions: 3.54 x 2.99 x 1.26 inches


Item Weight: 4.2 ounces


Item model number: B800BC


Date First Available: January 19, 2024


Manufacturer: Shenzhen Shiyu Technology Co., Ltd.


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Feb 6

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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  • 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.

Top Amazon Reviews


  • Great battery Life…
Size: 2 Pack Style: Flat Top
Great battery life - maybe too good for my usage- i was making a battery charger although it kept a charge too well for me to discharge it quickly. Easy to use i had used solder to attach terminals onto it as well.
Reviewed in the United States on July 14, 2025 by Ziyad Yousif

  • These are flat top batteries..
Size: 2 Pack Style: Flat Top
I'm happy. They actually test out a bit over 2000 mAh on my tester and 3/4 of the ones I test fall way short of advertised.
Reviewed in the United States on June 13, 2025 by dickb46

  • Good battery
Size: 2 Pack Style: Flat Top
Replaced malfunctioning bstteries
Reviewed in the United States on October 25, 2024 by TropicThunder

  • They provided pi zero 2 power for 16.5 hours
Size: 2 Pack Style: Flat Top
Pi zero 2w with a UPS HAT running a GPS module, wifi about 1.3watts ran for 16.5 hours before shutting down which isnt bad.
Reviewed in the United States on May 31, 2025 by I'm a Realist

  • Came quickly, right size
Size: 4 Pack Style: Button Top
These batteries came quickly and were the correct size for our string patio lights. Thankfully, spring parties are back under swinging lights!
Reviewed in the United States on May 4, 2025 by Barking Lark

  • Works exactly like I expected great product
Size: 4 Pack Style: Flat Top
Works exactly like I expected great product
Reviewed in the United States on May 18, 2025 by Steve McMillan

  • Time will tell.
Size: 2 Pack Style: Flat Top
Only gave four stars. Simple reason is because these are cheap. Battery life -don't know yet. Do they work yes but I have know way of checking if power is accurate. Will admit I ordered this pair by mistake. I wanted the cells that had the button top. But you know what they fit and work in my flashlights just fine. Hope they last at least for a couple of years. ... show more
Reviewed in the United States on October 6, 2024 by Norm H.

  • Don’t hold charge long
Size: 2 Pack Style: Flat Top
Doesn’t hold a charge very long
Reviewed in the United States on March 12, 2025 by pat rudebeck

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