10 Best 21700 Protect In The Us - Black Friday 2024
Best Choice1
DIVTEK18650 to 21700 Battery Adapter, Converter Adapter for 21700 Flashlight Cases with Metal Contacts 18650 Sleeve Batteries Protective 21700 Battery Adaptor Holder Accessories (5 Battery Converters)
Main highlights- This 18650 to 21700 battery accessories comes with a 5-year warranty and replacement guarantee for any defects or issues. We stand behind the quality of our products and are committed to providing excellent after-sales service.
- ️ This adapter is designed to provide greater flexibility and convenience for flashlight users ect, allowing them to utilize their existing supply of 18650 batteries without having to purchase a new 21700 battery. By simply inserting the 18650 battery into the adapter, users can enjoy the same level of performance and reliability as they would with a specialized battery.
- ️ Divtek 18650 to 21700 battery sleeve is made of ABS material with fire retardant properties, and features highly conductive copper-plated gold battery contacts.
- ️ Divtek 18650 battery tubes are professional battery adapters.Our battery sleeve is designed to provide reliable and safe performance, with high-quality materials and construction that meet industry standards for fire resistance and conductivity. Please note that the weight of this is battery adapter is about 0.25 ounces
- ️ By choosing to use 18650 adapter, users can save both time and money by avoiding the need to purchase new 21700 batteries or dispose of their existing supply of 18650 batteries. This not only reduces waste and environmental impact but also provides a more cost-effective solution for those who already have a large collection of 18650 batteries.
9.7Exceptional
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Value for Money2
CBJJCBJJ 21700 Rechargeable Battery, 3.7 Volt 21700 Battery 5000mAh Flat Top 21700 Li-ion Battery for Flashlight (2 Pack, Black)
Main highlights- Wide Compatibility: These rechargeable 21700 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. NOTE: Please fully charge the products before use
- Warm Service: All of products have passed strict testing for normal use. If you have any question, please feel free to contact us, we'll reply email ASAP
- Product Dimensions: 71*21*21 mm(2.80*0.83*0.83 inch). NOTE: This is 3.7v 21700 battery, please refer to the images to confirm the battery model and battery size to select the appropriate battery before purchase
- Multiple Protections: This 3.7v 21700 rechargeable 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
- High Performance: This 3.7v 21700 li-ion battery is with 5000mAh large capacity which supports stable power for your devices and effectively prevents damage of the devices, such a perfect replacement battery for used devices with high frequency
9.6Exceptional
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3
Protect Your PowerProtect Your Power0 Battery Case, Soft Durable Material - Pack of 2 (Holds 2 Batteries)
Main highlights- [Protect Your Power] - The Slimline 21700 battery case is made of a soft durable rubber like material which will not crack or shatter. It keeps your batteries fully protected by keeping both battery terminals covered and safe. A micro-bevel lip holds the top on securely, ensuring your batteries remain in the case.
- [Keep Batteries Organized] The perfect battery storage case for your 21700 batteries. Place used/dead batteries in the case upside down to easily keep track of which batteries are depleted.
- [Excellent for the Outdoors] - Great to keep with your hiking gear or camping supplies for safe battery storage. Bring a spare set of batteries with you in your pack on a hike, or while camping, to keep your flashlight powered.
- [Contents] Includes 2x 21700 battery cases, each battery holder will hold 2x 21700 batteries. Design allows for storing protected or unprotected batteries up to 78mm in length.
- Batteries not included.
9.5Excellent
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4
unifun18650 to 21700 Battery Adapter, Converter Adapter for 21700 Flashlight Cases with Metal Contacts 18650 Sleeve Batteries Protective 21700 Battery Adaptor Holder Accessories (2 Battery Converters)
Main highlights- This 18650 to 21700 battery accessories comes with a 5-year warranty and replacement guarantee for any defects or issues. We stand behind the quality of our products and are committed to providing excellent after-sales service.
- ️ This adapter is designed to provide greater flexibility and convenience for flashlight users ect, allowing them to utilize their existing supply of 18650 batteries without having to purchase a new 21700 battery. By simply inserting the 18650 battery into the adapter, users can enjoy the same level of performance and reliability as they would with a specialized battery.
- ️ Divtek 18650 to 21700 battery sleeve is made of ABS material with fire retardant properties, and features highly conductive copper-plated gold battery contacts.
- ️ Divtek 18650 battery tubes are professional battery adapters.Our battery sleeve is designed to provide reliable and safe performance, with high-quality materials and construction that meet industry standards for fire resistance and conductivity. Please note that the weight of this is battery adapter is about 0.25 ounces
- ️ By choosing to use 18650 adapter, users can save both time and money by avoiding the need to purchase new 21700 batteries or dispose of their existing supply of 18650 batteries. This not only reduces waste and environmental impact but also provides a more cost-effective solution for those who already have a large collection of 18650 batteries.
9.2Excellent
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5
EcoSolutionsEcoSolutions 21700 Rechargeable Battery Case Set, 5000mah Large Capacity 3.7Volt 21700 Flat Top Battery for flashlights ect, 2 Pack
Main highlights- Widely Compatible: 5000mAh 21700 Rechargeable battery large capacity,Which can be widely used for electronic devices, such as LED flashlights, emergency lights, portable devices, headlights, toys, remote controls, etc.
- Product Size: 21*21*70 mm (0.82*0.82*2.75 inches),it's a 3.7 volt Flat Top rechargeable battery, please check carefully before purchasing !).Please confirm whether the battery model required by your device.
- Multiple Protections: This flat top rechargeable battery is without memory effect and provide safe protections to protect your devices,including short circuit, overcharge, and overcurrent protection. NOTE: Please fully charge the products before use
- Large capacity: 21700 battery With a capacity of 5000mAh and voltage of 3.6v battery, high capacity battery with low discharge rate, high power consumption, high energy density and pollution-free design, No need to change batteries frequently.
- Enjoy our warm after-sales service: All of our products have passed strict testing for normal use. If you encounter any issues, don't hesitate to reach out to us. We're committed to resolving them for you promptly.
9.1Excellent
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6
BFHBBFHB 21700 Battery Case Set 5000 mAh for Flashlight - 2 Pack
Main highlights- Wide Compatibility - With the standard size, these batteries are compatible with many flashlight brands and other electronic devices, including LED torches, portable devices, headlights, toys, cameras and other household appliances. Providing users with a broader range of choices and flexibility.
- Reliability and Durability - High-quality manufacturing processes and materials ensure the stability and durability of it, allowing them to perform exceptionally well in various environments and usage conditions.
- Precision Design - Tailored for flashlights, these batteries set are seamlessly integrated with their corresponding battery cases, offering a safe and efficient power solution to keep devices operating optimally when needed.
- Ensuring reliable power for extended durations, making it an ideal choice for various devices.
- Enjoy our warm after-sales service: If you encounter any issues, don't hesitate to reach out to us. We're committed to resolving them for you promptly.
8.9Very Good
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7
EcoSolutionsEcoSolutions 21700 Rechargeable Battery Case Set, 2pack 5000mah Large Capacity 3.6Volt 21700 Tip Battery for flashlights ect,
Main highlights- Widely Compatible: 5000mAh 21700 Rechargeable battery large capacity,Which can be widely used for electronic devices, such as LED flashlights, emergency lights, portable devices, headlights, toys, remote controls, etc.
- Reliability and Durability: High-quality manufacturing processes and materials ensure the stability and durability of it, allowing them to perform exceptionally well in various environments and usage conditions.
- Product Size: 21*21*70 mm (0.82*0.82*2.75 inches),it's a 3.6 volt rechargeable battery, please check carefully before purchasing !).Please confirm whether the battery model required by your device.
- Large capacity: 21700 battery With a capacity of 5000mAh and voltage of 3.6v battery, high capacity battery with low discharge rate, high power consumption, high energy density and pollution-free design, No need to change batteries frequently.
- Enjoy our warm after-sales service: If you encounter any issues, don't hesitate to reach out to us. We're committed to resolving them for you promptly.
8.6Very Good
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8
Yuecoom10Pcs 21700 Battery Holder Bracket, ABS Resin Cylindrical Cell Battery Holder, Battery Protecting Storage Box Board for 21700 Internal Battery
Main highlights- Replace the traditional general adhesive with a professional battery holder, which is easy to combine, the connection is firmer, and the battery is easy to maintain. It is the best choice for battery combination
- Professional: With profess, aional battery holder to replace the traditional general adhesive, which would brings convenient combination and more firm connections well as brings convenient maintenance of the battery.
- Premium ABS Material: Made of high quality ABS resin material, which has excellent impact resistance. This battery holder bracket is heat, low temperature and rust resistant. Bright surface, stable performance
- Flexible Controller: You can cut by scissors, flexible and effective to control battery volume.The surface is glossy and it has stable performance.Commonly used for protecting storage, isolation and fixing of the 21700 internal battery
- Battery Holder Bracket: The battery holder is an essential bracket for high-end battery combinations, which can withstand high drops, high-strength support, easy to dissipate heat, easy to combine, fixed specifications, and free combination
8.3Good
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9
Generic21700 BATTERY CASE for protective circuit battery
Main highlights- 21700 Battery Case
8.1Good
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10
BistookBistook 21700 Battery Holder Box Case for PCB Projects, 10-Pack, 1-Slot Each
Main highlights- Warm Tips：Batteries are not included. It's best to use a consumer 21700 battery with a button cap.The battery holder is nickel-plated. Please avoid using it under high temperature conditions and do not bend the pins.The battery must be installed with the positive pole first, and then the negative pole! To remove the battery, you must remove it from the negative pole, and it is forbidden to remove it from the positive pole of the battery! Otherwise, there is a risk of short circuit!
- High-Quality Material &Easy Conductivity：The 21700 Battery Holder is made of PC+ABS material, which is durable and long-lasting.It features nickel-plated positive and negative terminals with good conductivity and excellent solderability.
- Easy to Carry & Wide Application：The compact design of the 21700 Battery Holder Case is easy to carry, whether you are at home or outdoors, you can use it for various electronic projects. The battery holder can be applied in electronic DIY according to your needs, and is suitable for various PCB projects.
- Easy installation & Removal： The 21700 Battery Slot is designed for easy installation.you only need to install the battery easily, and then it can be used with the PCB board.When you need to remove the battery, simply take it out.
- 10-Pack with 1-Slot Design：The 21700 Battery Holder Slot comes in 10-pack, with each holder featuring 1 slots,which can accommodate 3.7V 21700 flat-top cylindrical lithium batteries. It allows you to easily organize and secure your 21700 batteries for PCB Projects.
7.8Good
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