10 Best Protection 21700 In The Us - Black Friday 2024
Button Top 3.7V 5000mAh Lithium-ion Rechargeable Battery Type-C Input/Output Protection Circuit Built-in Large Capacity 3.6V Replacement Battery for LED Flashlight, Headlamps etc(2 Pack)
Main highlights- 【Secure and Reliable】The highest quality, the happiest customer. LBF Protection Circuit Built-In Battery features six types of protection, including temperature, short circuit, overcharge, and overcurrent protection.
- 【Rechargeable 1000+ Times】 A single 3.6 Volt rechargeable battery can recharge up to 1000 charging and discharging cycles and no memory effect. Replace 1000+ disposable alkaline batteries, reduce the waste of resources and good value for the money.
- 【Large Capacity】 LBF 3.7V battery with a capacity of 5000mAh and voltage of 3.7V, high capacity battery with low self discharge rate, high power consumption, high energy density and pollution-free design, No need to charge batteries frequently.
- 【Battery Specification】Battery type: Button Top PCB Protection Circuit Built-In, Capacity: 5000mAh(5Ah), Wh Rating: 18.5Wh, Voltage: 3.7V, Size: 21.5*75.2mm(0.85*2.96 inches), Feature:Type-C Input/Output, Quantity: 2 Pack. This product is NOT sold with restricted lithium-ion standalone batteries. This product does NOT include lithium-ion battery types: 14500, 16340, 18650, 20700, 21700 and 26650
- 【Applicable Device】LBF 21C70 lithium ion battery for led flashlights, headlights, bicycle lights, emergency lights, work lights, loudspeakers, Instrumentation. The USB-C Input/Output battery can be used as an emergency power bank to charge your phone or other devices. It's 21.5*75.2mm, not 21*70mm. Please check whether it is the battery you need before purchasing.
9.8Exceptional
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Value for Money2
JJCJJC 24 Slots 21700/20700 Battery Case Holder, IP67 Water-Resistant & Shockproof Battery Storage Organizer Box for 21700 or 20700 Battery with Customized Holder, EVA Interior and Pressure Valve
Main highlights- The battery container is made of hard PP plastic, the inside lid and bottom with EVA foams are for sound absorption, better protects both terminal ends from damaging and impact. Anti-skid grooves constructed on the surface of the case for saving space and prevent your battery cases falling out accidentally.
- The battery case can store up to 24 x 21700 or 20700 batteries. It neatly holds the batteries snugly in place within the holder slots and keeps the contact ends from contacting each other. (Batteries are NOT included.)
- Size7.2x5.2x4.1”. It should be a good partner for organizing your batteries.
- Moreover, the 21700 battery storage box features an automatic pressure equalization valve to balance interior pressure and keep opening and closing smoothly.
- It has a solid snap closure and features a silicone sealing ring that protects your batteries from dust, moisture and shock. A 5mm diameter lock hole next to the closure allows you to double keep your batteries safety.
9.7Exceptional
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3
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.
9.6Exceptional
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4
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.
9.3Excellent
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5
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.
9.2Excellent
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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.
9.0Excellent
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7
BistookBistook Battery Holder DIY,1 Slot 21700 Battery Holder Box Case-Protection Caps,No Soldering,Brass Contacts Storage Case with Transparent Cover for DIY,6-Pack
Main highlights- Widely Applications: It can be applied to DIY electronics according to your needs. You can also add your own circuit board to convert the battery box into a power bank. This battery holder case can unleash your creativity.
- Warm tips：This product is suitable for DIY and does not include batteries. It's best to use a consumer 21700 flat head battery.
- Protective accessories: The two sides of the DIY battery storage case are with a protective shell with a mortise and tenon structure, which effectively prevents contact with conductive surfaces, and protects the device safely and reliably.
- Material: The battery holder is made of PC+ABS material, and the positive and negative terminals are supported by pure copper M3 screws, which can effectively reduce the resistance. Support 5A(Max) high current.
- Flexible use: Each 21700 battery slot is equipped with a transparent plastic cover, which can better fix the battery. You can also splice infinitely according to your own electronic needs and give full play to your creativity
8.9Very Good
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8
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
8.8Very Good
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9
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.
8.5Good
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10
SUNLYTOURSUNLYTOUR 4 Slots 21750 21700 Battery Charger,4 Slots Ni-MH AA 18650 Battery Charger 21700 Charger for 20700 22700 22650 26650 26700 16340 (RCR123) 17670 Battery with PCB Protection Board
Main highlights- ※ 5.[Smart Protection] It has a unique reverse connection protection effect, and there is a smart chip to escort your equipment.If charge full,it will stop charge based on the smart technology.
- ※ 4.[Independent design] This battery charger adopts a high-standard design and has 4 independent slots, which can be adjusted at will to charge batteries of different lengths, which is very convenient and effective.
- ※ 3. [Compatibility] This smart USB battery charger Compatible With 1.2V Ni-MH Ni-CD AA AAA AAAA C SC F6 Li-ion IMR INR ICR 21750 18650 20700 21700 22700 26650 26700 10440 14500 14650 16340 (RCR123) 16650 17500 17650 17670 18350 18490 18500 Rechargeable Batteries.
- ※ 2. [Convenience] This charger has 75 mm slot,it can support Battery less than 75 mm,such as 21750 21700 20700 26700 26650 18650 battery with PCB Protection Board.So you can charge your led torch battery and other home appliance.
- ※ 1.[Warm Tips] Before Charge,please make sure your battery is OK.If appearance or electrode plate broken,please don’t charge it.This charger can not charge CR123,CR123A battery,please don’t try to charge it.
8.3Good
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