Updated: 16 Feb 2025

21700 battery poverbanks

Explore up to 16% Off

Updated: 16 Feb 2025

#1

Best Choice
DQGG 3.7 Volt 21700 Rechargeable Battery with Charger 5000mAh Battery 2Pcs Large Capacity Batteries for LED Flashlight, Headlamps, Doorbells, Toys, Cameras etc

9.8

DQGG

-10%

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Main highlights

【Wide Application】5000mAh rechargeable battery, compatible with Flashlight, Headlamps, Doorbells, Toys, Cameras, etc.

【Product Advantage】No memory effect, they can be charged many times when fully or partially drained.

【Content】You will get 2 pieces of 21700 batteries and 1 charger.

-10%
#2

Value for Money
BENKIA 21700 Rechargeable Battery 3.7V 5000mAh Large Capacity Flat Top for Led Flashlight Headlamp（2 Pack,21700 Battery+Charger

9.6

BENKIA

-16%

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Main highlights

【Multi-Application】 Large capacity 21700 rechargeable battery is compatible with versatile devices, such as headlamps, flashlights, doorbells,small fans,remote controls, alarm clock,toys,etc. Helps you start your devices quickly

【High Capacity】Long lasting 5000mAh 21700 battery, easy to charge. Support stable 3.7volt output voltage, makes the devices work more stable and lasting longer, ideal replacement batteries for high frequently used devices

【Dimension】Flat Top size: 70*21*21mm(2.76*0.83*0.83inches). NOTE: Please confirm whether the battery size and battery type before purchase

-16%
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#3
EcoSolutions 21700 Rechargeable Battery Case Set, 5000mah Large Capacity 3.6Volt 21700 Tip Battery for flashlights ect, 2pack

9.3

EcoSolutions

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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.
#4
EcoSolutions 21700 Rechargeable Battery Case Set, 2pack 5000mah Large Capacity 3.6Volt 21700 Tip Battery for flashlights ect,

9.0

EcoSolutions

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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.
#5
BFHB 21700 Battery Case Set 5000 mAh for Flashlight - 2 Pack

8.8

BFHB

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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.
#6
21700 Rechargeable Battery 3.7Volt Flat Top 5000mAh High Capacity for Flashlight Headlamp(2 Pack,21700 Battery+Charger)

8.6

PAOWANG

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Main highlights

【Multi-Application】Long lasting 21700 batteries for headlamps, flashlights, doorbells,alarm clock,toys and other necessary devices.Wake up your device at any time

【High Performance】With a large capacity of 5000mAh, 21700 rechargeable batteries can last at least 20% longer than other batteries, ideal replacement battery for used devices with high frequency

【Battery Size】70*21*21mm(2.76*0.83*0.83inches) It's a rechargeable battery FLAT TOP.Please confirm whether your device is suitable before purchasing
#7
Svenirven 21700 Battery, 2PCS 5000mah 3.6V 21700 Flat top Battery 21700 Rechargeable li-ion Battery Green with Battery Organizer

8.4

Svenirven

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Main highlights

Size: 70mm x 21mmx 21mm(2.75*0.82*0.82 inches) ,The 21700 batteries are widely used in various devices, including flashlights, headlamps, path-lights, doorbells , power banks and more
#8
Protect Your Power0 Battery Case, Soft Durable Material - Pack of 2 (Holds 2 Batteries)

8.3

Protect Your Power

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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.
#9
CPZZ 3.7v 21700 Battery Rechargeable 5000mah Large Capacity 3.7Volt 21700 Rechargeable Battery for flashlights ect,2pack 3.7v Battery 1009

8.2

CPZZ

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Main highlights

Widely Compatible: 3.7 volt 21700 Rechargeable battery for flashlights, headlights, this 3.7v battery is highly portable, making it convenient for travel, camping trips.

Product Size: 21*21*70 mm (0.82*0.82*2.75 inches),it's a 3.7 volt rechargeable battery, please check carefully before purchasing !!!).Please confirm whether the battery model required by your device.

High performance product: 21700 battery With a capacity of 5000mAh and voltage of 3.7v battery, high capacity battery with low discharge rate, high energy density and pollution-free design, No need to change batteries frequently.
#10
CBJJ 21700 Rechargeable Battery, 3.7 Volt 21700 Battery 5000mAh Flat Top 21700 Li-ion Battery for Flashlight (2 Pack, Black)

8.1

CBJJ

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Main highlights

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

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21700 battery poverbanks

DQGG 3.7 Volt 21700 Rechargeable Battery with Charger 5000mAh Battery 2Pcs Large Capacity Batteries for LED Flashlight, Headlamps, Doorbells, Toys, Cameras etc

9.8

Main highlights

BENKIA 21700 Rechargeable Battery 3.7V 5000mAh Large Capacity Flat Top for Led Flashlight Headlamp（2 Pack,21700 Battery+Charger

9.6

Main highlights

EcoSolutions 21700 Rechargeable Battery Case Set, 5000mah Large Capacity 3.6Volt 21700 Tip Battery for flashlights ect, 2pack

9.3

Main highlights

EcoSolutions 21700 Rechargeable Battery Case Set, 2pack 5000mah Large Capacity 3.6Volt 21700 Tip Battery for flashlights ect,

9.0

Main highlights

BFHB 21700 Battery Case Set 5000 mAh for Flashlight - 2 Pack

8.8

Main highlights

21700 Rechargeable Battery 3.7Volt Flat Top 5000mAh High Capacity for Flashlight Headlamp(2 Pack,21700 Battery+Charger)

8.6

Main highlights

Svenirven 21700 Battery, 2PCS 5000mah 3.6V 21700 Flat top Battery 21700 Rechargeable li-ion Battery Green with Battery Organizer

8.4

Main highlights

Protect Your Power0 Battery Case, Soft Durable Material - Pack of 2 (Holds 2 Batteries)

8.3

Main highlights

CPZZ 3.7v 21700 Battery Rechargeable 5000mah Large Capacity 3.7Volt 21700 Rechargeable Battery for flashlights ect,2pack 3.7v Battery 1009

8.2

Main highlights

CBJJ 21700 Rechargeable Battery, 3.7 Volt 21700 Battery 5000mAh Flat Top 21700 Li-ion Battery for Flashlight (2 Pack, Black)

8.1

Main highlights

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