Updated: 21 Sep 2025

10 Best 18650 batteries of 2025

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Updated: 21 Sep 2025

#1

Best Choice

Rechargeable Battery 3.7V 3600mAh for Streamlight X Series Flashlights 2-Pack

9.8

SNSYIY

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Main highlights

Original Battery for Streamlight flashlight -- Flashlight Type: 88083 ProTac 2L-X, 22104 SL-B26 and so on

Fits for GearLight S1000 LED Flashlights & GearLight TAC LED Flashlight & GearLight S1050 LED Flashlight

3.7V 3600mAh Button Top USB Rechargeable battery main be used for high lumen flashlights, Fits for normal flashlights to provide more lasting energy
#2

Best Value

6PCS 18650 3.7V 1200mAh Li Battery with 6 in 1 Charger for DE45 DE58 RC Car 1:14 Off-Road Vehicle Four-Wheel Drive High-Speed Climbing Drift Racing Battery

9.7

NORTH STAR 1595

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Main highlights

These products with superior materials are more durable and practical and do not facilitate damage.

Overcharge protection;Short-circuit protection;Light weight.

For DE45 RC Car 1:14 Off-Road Vehicle Four-Wheel Drive High-Speed Climbing Drift Racing Spare Battery.
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#3

18650 Battery Lithium Ion 2 Pack BMS Protected Smart LED 3.7V 8100mWh USB-C Rechargeable with Charging Cable, No Charging Box Needed!

9.6

STRIKE BATTERIES

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Main highlights

Throw away your charging box and plug in any USB-C cable into the battery body to recharge.

Protected Safety Battery Management System in every battery, protects battery by putting it into sleep mode when the environment is unsafe. Short Circuit, Excess Voltage or Current, Excess temperatures will temporarily shut down the battery until the environment is safe again. Battery never leaks or self-drains.

18650 battery size, 3.7 Volts, ensuring compatibility with a wide range of high and low drain devices.
#4

CSTAL 3.7V 3800Mah Rechargeable Button Top Cap Lithium Battery, High Performance Backup Battery, Suitable for Flashlights, 4 Units

9.5

CSTAL

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Main highlights

★ More time on devices.

★ Features: 100% brand new, high quality. No "memory effect." Short circuit and over current protection. Safety and environmental protection.

★ Excellent high discharge / drain performance.
#5

TAVICE Battery INR21700-40T 4000mAh 21700 Lithium-ion Battery Cells CP40T-1 (1 Pack)

9.3

TAVICE

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Main highlights

𝗛𝗜𝗚𝗛 𝗗𝗜𝗦𝗖𝗛𝗔𝗥𝗚𝗘 𝗥𝗔𝗧𝗘: This battery can support continuous discharge currents up to 35A, making it ideal for high-power applications such as power tools, electric bikes, and drones. The high discharge rate ensures reliable performance under heavy load conditions.

𝗖𝗢𝗠𝗣𝗔𝗧𝗜𝗕𝗟𝗘 𝗨𝗦𝗘: The NR21700-40T is commonly used in battery packs for various devices, including power tools, electric vehicles, and renewable energy storage systems. Its high capacity and discharge rate make it compatible with both consumer and industrial-grade electronics.

𝗕𝗔𝗧𝗧𝗘𝗥𝗬 𝗠𝗢𝗗𝗘𝗟: The NR21700-40T is a 21700-format lithium-ion battery that offers a high energy capacity of 4000mAh with a nominal voltage of 3.6V. This makes it suitable for applications requiring higher capacity and performance than the common 18650 cells.
#6

Rechargeable Lithium Batteries Fast Charging Battery 3000MmWh High-Capacity 1200+ Cycles Ultra-Long Lasting Time Durable Cycle Smart Charging (4PCS 3000mWh)

9.2

VENNERLI

-15%

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Main highlights

Safe & Reliable:Integrated CBPI sealing technology,high space utility,strong consistence,strong stability, built-in protection against overcharging, over-discharging, and short circuits ensures safe usage every time.

SUPERIOR CAPACITY: Rrechargeable lithium battery with high capacity, these batteries last 5x longer than standard alkaline batteries, saving you time and money.

CYCLE CHARGING: One battery can be recharged up to 2000 times, and it can reducing the expense and waste of batteries.

-15%
#7

7.4V 2500mAh Li-ion 18650 Battery Pack Replacement Rechargeable Battery Pack with SM-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc.

9.1

huaxinyud

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Main highlights

️Wide Application: This Rechargeable Lithium Ion Battery Pack can be used for walkie talkie, electric drills, Fishing lights, RC Cars, LED Headlamp, Digital Camera, Mobile speakers,etc.

️Multi-protections: This Li-ion Rechargeable Battery Pack with overcharging, over discharge, over current, short circuit protection and steady voltage circuit.

️Li-Ion Size: This 7.4V rechargeable li-ion battery pack is made of 2Pcs 2500mAh Power Cells. Total Capacity: 2500 mAh, Working Voltage: 7.4V, Size: 68*36.5*19mm/2.68*1.44*0.75Inch.
#8

3.7V 4000mAh Li-ion Battery Pack Replacement 18650 Rechargeable Battery Pack with JST-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc.

9.0

huaxinyud

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Main highlights

️Wide Application: This Rechargeable Lithium Ion Battery Pack can be used for walkie talkie, electric drills, Fishing lights, RC Cars, LED Headlamp, Digital Camera, Mobile speakers,etc.

️Multi-protections: This Li-ion Rechargeable Battery Pack with overcharging, over discharge, over current, short circuit protection and steady voltage circuit.

️Li-Ion Size: This 3.7V rechargeable li-ion battery pack is made of 2Pcs 2000mAh Power Cells. Total Capacity: 4000 mAh, Working Voltage: 3.7V, Size: 68*36.5*19mm/2.68*1.44*0.75Inch.
#9

3.7V 2000mAh Li-ion Battery Pack RC Replacement Rechargeable Battery Pack Built-in 1 * 18650 Cell for Cars Airplane DIY, Fishing Lights,Doorbell,Handheld Fan,Radio,Speakers, etc.

8.7

huaxinyud

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Main highlights

️Wide Application: This Rechargeable Lithium Ion Battery Pack can be used for walkie talkie, electric drills, Fishing lights, RC Cars, LED Headlamp, Digital Camera, Mobile speakers,etc.

️Multi-protections: This Li-ion Rechargeable Battery Pack with overcharging, over discharge, over current, short circuit protection and steady voltage circuit.

️Li-Ion Size: This 3.7V rechargeable li-ion battery pack is made of 1*2000mAh Power Cells. Total Capacity: 2000 mAh, Working Voltage: 3.7V, Size: 65*18mm/2.56*0.71Inch.
#10

2Pcs 3.7V 1200mAh Li-ion Battery Pack 18650 * 1 Cell RC Replacement Rechargeable Battery Pack for Cars Airplane DIY, Fishing Lights,Doorbell,Handheld Fan, Radio, Speakers, etc.

8.4

huaxinyud

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Main highlights

️Wide Application: This Rechargeable Lithium Ion Battery Pack can be used for walkie talkie, electric drills, Fishing lights, RC Cars, LED Headlamp, Digital Camera, Mobile speakers,etc.

️Multi-protections: This Li-ion Rechargeable Battery Pack with overcharging, over discharge, over current, short circuit protection and steady voltage circuit.

️Li-Ion Size: This 3.7V rechargeable li-ion battery pack is made of 1*1200mAh Power Cells. Total Capacity: 1200 mAh, Working Voltage: 3.7V, Size: 65*18mm/2.56*0.71Inch.

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10 Best 18650 batteries of 2025

Rechargeable Battery 3.7V 3600mAh for Streamlight X Series Flashlights 2-Pack

9.8

Main highlights

6PCS 18650 3.7V 1200mAh Li Battery with 6 in 1 Charger for DE45 DE58 RC Car 1:14 Off-Road Vehicle Four-Wheel Drive High-Speed Climbing Drift Racing Battery

9.7

Main highlights

18650 Battery Lithium Ion 2 Pack BMS Protected Smart LED 3.7V 8100mWh USB-C Rechargeable with Charging Cable, No Charging Box Needed!

9.6

Main highlights

CSTAL 3.7V 3800Mah Rechargeable Button Top Cap Lithium Battery, High Performance Backup Battery, Suitable for Flashlights, 4 Units

9.5

Main highlights

TAVICE Battery INR21700-40T 4000mAh 21700 Lithium-ion Battery Cells CP40T-1 (1 Pack)

9.3

Main highlights

Rechargeable Lithium Batteries Fast Charging Battery 3000MmWh High-Capacity 1200+ Cycles Ultra-Long Lasting Time Durable Cycle Smart Charging (4PCS 3000mWh)

9.2

Main highlights

7.4V 2500mAh Li-ion 18650 Battery Pack Replacement Rechargeable Battery Pack with SM-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc.

9.1

Main highlights

3.7V 4000mAh Li-ion Battery Pack Replacement 18650 Rechargeable Battery Pack with JST-2P USB Charger Cable for RC Airplane DIY, Fishing Lights,Doorbell, etc.

9.0

Main highlights

3.7V 2000mAh Li-ion Battery Pack RC Replacement Rechargeable Battery Pack Built-in 1 * 18650 Cell for Cars Airplane DIY, Fishing Lights,Doorbell,Handheld Fan,Radio,Speakers, etc.

8.7

Main highlights

2Pcs 3.7V 1200mAh Li-ion Battery Pack 18650 * 1 Cell RC Replacement Rechargeable Battery Pack for Cars Airplane DIY, Fishing Lights,Doorbell,Handheld Fan, Radio, Speakers, etc.

8.4

Main highlights

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