Best 16650 Rechargeable Battery

Michel | 18-04-2026

Looking for some of the best Best 16650 Rechargeable Battery? As you may know, there are dozens of brands available in the market such as funkawa,SHENMZ,Ormakurda,Coonyard,NERMAK and some come with vastly different price tags. Let us help you out here – we have handpicked the Best 16650 Rechargeable Battery for you.

To compile our list, we’ve researched and evaluated a range of the best-selling products on the market. We recommend funkawa Best 16650 Rechargeable Battery as our top pick because of its exceptional overall performance. Want to explore more options? Read on! There’s also a buying guide to help you make a wise shopping decision.

Editor's Choice
funkawa 16650 Rechargeable Battery with Battery Charger, 16650 Protected 3.7V Rechargeable Battery
funkawa 16650 Rechargeable Battery with Battery Charger, 16650 Protected 3.7V Rechargeable Battery
Premium Pick
SHENMZ 16650 Protected Button Top Battery 2500mAh 3.7V Lithium Ion - High Capacity Rechargeable
SHENMZ 16650 Protected Button Top Battery 2500mAh 3.7V Lithium Ion - High Capacity Rechargeable
Budget Pick
funkawa (2- Pack) Shockli 16650 1800mAh Rechargeable 3.7V Batteries[ Replacement for 2 x CR123 ] -
funkawa (2- Pack) Shockli 16650 1800mAh Rechargeable 3.7V Batteries[ Replacement for 2 x CR123 ] -

Top 10 Best 16650 Rechargeable Battery

We researched and compared the top products in the Best 16650 Rechargeable Battery category to provide you with these recommendations.

1. funkawa 16650 Rechargeable Battery with Battery Charger, 16650 Protected 3.7V Rechargeable Battery

funkawa 16650 Rechargeable Battery with Battery Charger, 16650 Protected 3.7V Rechargeable Battery
9.8

Funkawa

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  • 16650 Protected Specification : The Capacity is 1800mAh, Dimensions (Dia. x H.) -16.7 x69mm / 0.65 x 2.7 inch, 500 Times Cycle Life, 16650 Protected battery is longer 4mm than 16650 Non-Protected battery
  • Battery Built-in Protection: 16650 PROTECTED battery with over- charge protection,over -discharge protection,over current protection,Protect the battery to zero voltage
  • Fits for flashight models: m4,Olight M1T Raider Plus,arisaka 600 series light,Streamlight PolyTac. (DO NOT NOT FIT P2X )
  • Important Notethe 16650 PROTECTED battery with PCB(Protect circuit board), the discharge current is 3A, DO NOT work well with high output mode flashlights, such as Stream light Pro-tac 2L X, surefire G2x, Streamlight Scorpion
  • USB Charger: Can charge 1-2 pcs 3.7v rechargeable batteries. With advanced control system, the charger turn to trickle charging automatically to prevent the batteries from over-voltage, over-current or over-heat

2. SHENMZ 16650 Protected Button Top Battery 2500mAh 3.7V Lithium Ion - High Capacity Rechargeable

  • Compatible Model16650 flashlight battery Compatible With model : such as m4, Olight M1T Raider Plus, arisaka 600 series light NOT fits for P2X. Please confirm whether the battery model required by your device is 16650.
  • Important NOTE 2-Pack 16650 headlamp battery pack, 3.7V 2500mAh high capacity battery, with button top rechargeable. NOT AA Battery or 18650 Battery.
  • No memory effectThe 16650 button top rechargeable battery can be charged over 1000 times.Multiple-protection for safer operation for both user and devices, build-in microchip to prevent over-charging,over-discharging and over-heating.
  • Environmentally Friendly16650 Rechargeable battery super convenient to use and replace one-time-use battery to save environment by preventing the waste of non-rechargeable lithium 16650 battery.
  • Customer Protection 30 days' refund policy, and 24 hours friendly customer service. Please contact the our support team for the first time if you are not satisfied with this item. We will spare no effort to help you.

3. funkawa (2- Pack) Shockli 16650 1800mAh Rechargeable 3.7V Batteries[ Replacement for 2 x CR123 ] -

funkawa (2- Pack) Shockli 16650 1800mAh Rechargeable 3.7V Batteries[ Replacement for 2 x CR123 ] -
9.1

Funkawa

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  • Battery Type 16650 Protected 3.7V Li-ion rechargeable Battery (NOT 18650 )
  • 16650 Protected Specification : The Capacity is 1800mAh, Dimensions (Dia. x H.) -16.7 x69mm / 0.65 x 2.7 inch, 500 Times Cycle Life, 16650 Protected battery is longer 4mm than 16650 Non-Protected battery
  • Multi-protection: 16650 PROTECTED battery with over- charge protection,over -discharge protection,over current protection,Protect the battery to zero voltage
  • Fits for flashight models: Used a 16650 Protected battery to replace 2* CR123A, Good for m4,Olight M1T Raider Plus,arisaka 600 series light, Streamlight PolyTac, Surefire Fury (DO NOT FIT P2X)
  • Important Notethe 16650 PROTECTED battery with PCB(Protect circuit board), the discharge current is 3A, DO NOT work well with high output mode flashlights, such as Stream light Pro-tac 2L X, surefire G2x, Streamlight Scorpion

4. Ormakurda 16650 Rechargeable Battery, 16650 Battery 1800mAh 3.7V Li-ion Rechargeable Batteries with

Ormakurda 16650 Rechargeable Battery, 16650 Battery 1800mAh 3.7V Li-ion Rechargeable Batteries with
8.9

Ormakurda

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  • Pay attention : This is 16650 3.7V Li-ion battery, high capacity 16650 rechargeable batteries with button top. NOT AA Battery or 18650 Battery. NOT fits for P2X.
  • Size : the 16650 rechargeable battery size is 66x16.mm / 2.6x0.63 inch,Button top.
  • Wide Compatibility : 16650 battery compatible with certain model of flashight: such as m4, Olight M1T Raider Plus, arisaka 600 series light, Streamlight PolyTac.(Make Sure that the device's Battery Size is 16650 3.7V )
  • No memory effect : The 16650 rechargeable li-ion battery can be charged over 500 times When Fully or Partially Drained.
  • 100% GUARANTEED : If the 16650 rechargeable battery does not meet your expectations or have any problem , Please let us know and you will be offered a full refund or free replacement . Just enjoy shopping , dont worry about the after-sales.

5. Coonyard (5-Pack) 3.7V 1600mAh 16650 Li-ion Rechargeable Battery Flat Top Replacement for 2 x CR123

Coonyard (5-Pack) 3.7V 1600mAh 16650 Li-ion Rechargeable Battery Flat Top Replacement for 2 x CR123
8.7

Coonyard

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  • HIGH CAPACITY 1600MAH: Delivers extended runtime and superior power performance for devices requiring 2 x CR123 battery replacements.
  • RELIABLE LI-ION TECHNOLOGY: Built with stable 3.7V nominal voltage and 5.0C discharge rate, ideal for high-drain electronics.
  • FLAT TOP DESIGN: Compatible with flashlights, cameras, and security devices requiring flat-top batteries.
  • BUILT-IN PROTECTION: Features overcharge, over-discharge, and short-circuit protection for enhanced safety.
  • PACKAGE CONTENT: 5 x Battery Pack [Rechargeable]. 24-Month Warranty for added peace of mind.

6. NERMAK 3.7V 3200mAh USB Rechargeable Lithium lon Battery for Flashlights, Headlamps, Bike Lights,

  • Size Parameters3.7V 3200mAh lithium batteries, size: 18mm(0.7 inch) diameter x 70mm(2.7 inch), (Note: they are longer than the flat-top batteries, please check the battery size before purchasing)
  • Superior PerformanceBuilt-in USB-C port, support C-C output, you can charge your cell phone and other devices in case of emergency, easy to charge with the included 2-in-1 USB cable, no need for an additional battery charger (does not support PD fast charging)
  • Widely UsesNERMK 3.7V rechargeable batteries are suitable for flashlightsHigh-power flashlights are not suitable, headlamps, remote controls, microphones, radios, bike lights, bluetooth speakers, and other household devices.
  • Safe and Efficient: NERMAK 3.7V battery has built-in safety protection against overcharging, over-discharging, over-current and short-circuit, with 1500+ charging cycles for longer service life, making it an ideal replacement battery for high-frequency equipment.
  • Warm Note: 2* 3.7 Volt Replacement lithium ion battery12 months warranty, If you have any question for our product, Contact us: click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller"

7. 18650 Battery Charger,LCD Display Charger for 3.7V Li-ion Battery

18650 Battery Charger,LCD Display Charger for 3.7V Li-ion Battery
8.3

Swanlake

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  • Wide Application:2 Bay Intellicharge LCD Display Charger fit for 21700 20700 10440 14500 16340 16650 14650 18350 18500 18650 3.7V rechargeable battery,for 1.2V battery AA AAA AAAA SC C F6
  • 18650 battery charger:Adjustable charging current: 0.5A/1A/2A. (Note: The adjustable charging speed is only applicable to lithium batteries. The nickel-metal hydride battery charges at 0.5A.)
  • Intelligent LCD Display:Large screen displays charging voltage, charging current, charging time, battery type, battery power percentage, easy to understand the charging data.Independent charging, non-interference, full charge automatic stop, automatic judgment 1.2V nickel-metal hydride battery and 3.6/3.7V lithium battery
  • SAFE CHARGING:Safe and fire prevention PC+ABS material Battery Charger, with heat-resisting, low temperature resistance and scratch resistance;Built-in intelligent circuits protection to protect the battery safety charged.Intelligent circuit to prevent short circuit, over voltage, automatic stop charging after fully charged
  • What You Get:1*2 slot LCD Display battery Charge;1*charging cable;1* user manual. If you have any questions, please tell us at first time. We will provide professional service to solve your problems

8. GHERTFPY 3.7V 1600mAh 16650 Rechargeable Battery 2Pcs Flat Top Battery Large Capacity Battery for

  • Wide application: 3.7V rechargeable battery can be widely used for electronic devices, such as LED flashlights, emergency lights, power bank, headlights, RC toys, remote controls, digital camera, etc.
  • Long-lasting and rechargeable: This 3.7V rechargeable battery can provide you with the necessary charging power source or better help you in emergencies such as travel, emergencies, outdoor adventures, camping and so on.
  • Multiple protections: 3.7V Li-ion rechargeable battery provides 6 protections, such as temperature protection, short circuit protection, overcharge protection, and overcurrent protection to stabilize the battery. Please store in a cool, dry place.
  • Safe and environmentally friendly: The anti-corrosion shell can effectively protect the battery and extend its service life. Preventing waste of non-rechargeable battery. No memory effect, so no need worry more about your device without power.

9. gudongping Rechargeable 16650 Battery 3.7v 1600mah for Audio Player Singing Machine Small Fan Light

gudongping Rechargeable 16650 Battery 3.7v 1600mah for Audio Player Singing Machine Small Fan Light
7.9

Gudongping

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  • Capacity: 1600mAh
  • Battery Voltage: 3.6V-4.2(V)
  • Features: Good quality, durable, rechargeable
  • Battery characteristics: voltage, internal resistance, capacity, etc. They are balanced
  • Applicable: flashlights, scooters, LED lights, miner's lamps, lighting products, mobile power supplies, computers, mobile devices, automobiles, bicycles, communications, energy storage, solar

10. Keeppower K2 2-Bay Battery Charger for

Keeppower K2 2-Bay Battery Charger for
7.7

Keeppower

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  • The input for this charger is 5.0V2.0A. The output for this charger is 4.20V0.5A/1A/2A for Li-ion Rechargeable batteries and 1.48V0.5A for Ni-MH Rechargeable batteries.
  • This charger is compatible with a variety of Li-ion and Ni-MH rechargeable batteries, including 26700/26650/26500/21700/18650/18500/18350/17650/17500/16650/16340/14650/14500/14430 Li-ion batteries and AA/AAA/A/SC/C/F6 Ni-MH batteries.
  • The charger has 2 battery slots and a Type C mount for charging, and features a current switch to adjust the charging current. The charger has 2 LED indicators to track the charging status for both batteries.
  • Included with a USB-C cable, the charger can be charged by a USB power adapter, laptop, power bank, etc.. It is so portable that you can use it at home or on travel.
  • Built-in high-precision MCU and real-time temperature control protection system, with over-current protection, over-charge, over-voltage, and short-circuit protection. The charger will automatically stop charging after fully charged batteries.
1

Michel

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