4 Pack 14500 Rechargeable Battery, 3.7V Li-ion Rechargeable Batteries 800mAh for Headlamp, Flashlight, Cameras Toys
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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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Features
- Product information: TEKOWEE 3.7V rechargeable battery, Size: 50*14*14mm(1.97*0.55*0.55inch). Please confirm whether the battery size and battery type before purchase
- Multiple Security Protection: This 3.7V battery is without any memory effect and provide multiple protections, including short circuit, overcharge, and overcurrent protection. Prefectly make the battery to be more stable and safe to protect your devices
- Excellent performance: 14500 Battery has no memory effect, More than 2000 cycles of complete charge and discharge cycles. once purchased, long time use, save a lot of money
- Wide Compatibility: 3.7V rechargeable battery compatible with headlamps, flashlights, doorbells, small fans, remote controls, alarm clock, toys, etc and other electronic devices
- Customer service: If you do not like our 3.7V lithium batteries, please contact us and we will replace them or give you a full refund
Number of Batteries: 2 A batteries required. (included)
Brand: TEKOWEE
Battery Cell Composition: Lithium Ion
Battery Capacity: 800 Milliamp Hours
Recommended Uses For Product: Flashlight
Product Dimensions: 3.15 x 2.09 x 0.67 inches
Item Weight: 2.89 ounces
Item model number: 3.7v Rechargeable Battery
Batteries: 2 A batteries required. (included)
Date First Available: April 12, 2025
Manufacturer: TEKOWEE
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 4 Pack
I've bought many of these batteries over the years and these are some of the better ones I've gotten. Battery size is spot on, they fit my EDC flashlight perfectly (same size as a AA battery) on medium brightness I get 5 or 6 hours
Reviewed in the United States on February 11, 2026 by Aaron
Size: 4 Pack
My 1-year old solar marker lights would only work for two hours after a nice sunny day. I looked at the batteries and they were only rated at 2000mH. I saw these were rated at 8000mH. I installed them in the evening and didn’t know if they would work very well, since they hadn’t been charged up yet. They were very bright when I put them out. When I went outside at 30 minutes before sunrise, it had been 11 hours since I put them out, and they were still shining bright. Wow
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Reviewed in the United States on November 2, 2025 by R. Bennett
Size: 4 Pack
Meet or exceeded amp hour rating.
Reviewed in the United States on February 24, 2026 by Amazon Customer
Size: 4 Pack
18DEC25 See photos. The internal resistance and capacity are great. However, a common 1 X 4 storage case is too small. Every case I could find was made for a 50mm battery length, but these measure 51mm. This required removing plastic from the storage case to accommodate the extra length. And, because I flip my batteries over to indicate which are discharged, I had to make 8 holes. It all works fine, but making holes at the seamline of the case is a real pain.
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Reviewed in the United States on December 18, 2025 by Daniel P Ziemba Daniel P Ziemba
Size: 4 Pack
Work great. Arrived fully charged. Will update you when I have used them more.
Reviewed in the United States on January 20, 2026 by K
Size: 4 Pack
Sold as protected cells. They are not. I totally disassembled one after it discharged below 1.5 volts. No circuit at all!!! You will need to provide your own protection at additional cost.
Reviewed in the United States on January 15, 2026 by Amazon Customer
Size: 4 Pack
I bought these to replace the batteries in my Harbor Freight solar yard lights. SO much better. Before they would go out after 3 or so hours. I'm writing this at 3am and they are STILL ON. Very happy.
Reviewed in the United States on January 1, 2026 by Raymond
Size: 4 Pack
Good
Reviewed in the United States on February 23, 2026 by Dennis Ly