Best 21700 Battery For Vape In May 2025

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If you are ready to choose a new Best 21700 Battery For Vape, check out our detailed recommendation below!.

To help you in your search, we have completed this list of the Best 21700 Battery For Vape.

Top Rated Best 21700 Battery For Vape Of 2025

Rank	Product Name	Score
1	Smart Rechargeable Battery Charger for Ni-MH Ni-Cd A AA AAA C SC F6 Buy Now	9.7 Buy Now
2	Nitecore New i4 2016 Intellicharger Smart Battery Charger for Li-ion IMR Ni-MH NiCd Buy Now	9.5 Buy Now
3	DOTTMON LED 4-Slots Intelligent Universal Battery Charger for 3.6V/3.7V Li-ion 10440 14500 14650 Buy Now	9.1 Buy Now
4	4 Pack of Authentic 30Q, 3000mAh 3.7V 15A, Flat Top,18650-Battery, for Flashlight Buy Now	8.8 Buy Now
5	2 Pcs of Aplus Nylon Carrying Case Pouch Holder Bag Storage Organizer Buy Now	8.6 Buy Now
6	18650 Battery Charger,MiBOXER Smart Universal 4-Bay Automatic LCD Display,Fast Charging Rechargeable Li-ion LiFePO4 Buy Now	8.3 Buy Now
7	Universal Battery Charger EASTSHINE S2 LCD Display Speedy Smart Charger for Rechargeable Batteries Buy Now	8.1 Buy Now
8	Universal Smart Battery Charger 4 Bay for Rechargeable Batteries Ni-MH Ni-Cd AA AAA Buy Now	7.8 Buy Now
9	IMR 18500 1300mAh 3.7V High Drain LiMn Demonfire Rechargeable Battery with Button Top Buy Now	7.5 Buy Now
10	MiBOXER LCD Display Smart Battery Charger for Rechargeable Batteries Li-Ion Ni-MH Ni-Cd Lifepo4 Buy Now	7.2 Buy Now

1. Smart Rechargeable Battery Charger for Ni-MH Ni-Cd A AA AAA C SC F6

• Safety assurance: comes with special charge and discharge management circuit. with multiple security protection settings, the charger can effectively prevent reverse, short circuit, overcharge, over discharge, over-current damage to the battery, which makes users using the product without any safety concern.
• Ul certification: our product has been tested, got safety certificate and meets the applicable published standard. the ul mark is proof of product compliance to north american safety standards.
• Intelligent charger: has four independent charging channels, it can charge four lithium batteries at the same time. users can choose different charging current to meet the needs of slow charge or fast charge. and the charger will display the status of each rechargeable battery when charging.
• Strong practicality: can charge for different types of dc 3.7v cylindrical lithium batteries 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 18700, 22650, 20700, 21700, 22700, 25500, 26650, 26700 and 1.2v nimh/nicd aa, aaa, a, c, sc, f6 rechargeable batteries.
• What you get: bo4-pro smart charger, power cord, user manual, warranty card, 24 hours warm service, 60 days free refund, 2 years free replacement, lifetime maintenance. warm tips: this charger with no wall adaptor, you can use any dc 5v/2a adapter. (different input currents will affect the actual charging current. it is recommended to charge with 5v2a.)

2. Nitecore New i4 2016 Intellicharger Smart Battery Charger for Li-ion IMR Ni-MH NiCd

• For use with rechargeable batteries only. do not attempt to charge primary cells such as alkaline, zinc-carbon, lithium, cr123a, cr2 or any other unsupported chemistry
• Automatically detects battery power status and displays charging progress, and automatically stops charging when complete
• Twice the charging speed of the i4 charger, up to 1.5a. compatible with 1.2v, 3.7v, 4.2v, 4.35v batteries
• For use with li-ion / imr / lifepo4: 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430, 14500, 14650, 16500, 16340(rcr123), 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500,18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650, ni-mh / nicd: aa, aaa, aaaa, c, d
• Optimized charging design for imr batteries, with new imr battery recovery feature

3. DOTTMON LED 4-Slots Intelligent Universal Battery Charger for 3.6V/3.7V Li-ion 10440 14500 14650

• Portable and compact: the input usb charging cable is integrated with the charger, easy to carry and charge. 30 days free refund, 2 years free replacement, lifetime maintenance.
• Fully charge indicate: the led indicators will turn green when corresponding batteries are fully recharged.
• Smart charger: automatically detects battery capacity, select charging current. automatically adapts to usb input power.
• Usb charging: common micro-usb input makes it possible to be powered up by any usb 5v output, like wall chargers, power banks, car chargers etc.
• The product applies to 3.6v/3.7v li-ion: 10440 14500 14650 16340 16650 17650 17670 18350 18490 18500 18650 18700 22650 20700 21700(only for flat top) 22700 25500 26650 26700 (not for aa or aaa batteries).

4. 4 Pack of Authentic 30Q, 3000mAh 3.7V 15A, Flat Top,18650-Battery, for Flashlight

• Size: 65(l)*18mm(d) (+/-0.05mm)(not aa or aaa)
• 3000mah/3.7v/15a/rechargeable/high drain/flat top
• Oem by all for best. all rights reserved. report to amazon if get from other unauthorized seller
• Allforbest(tm) z-curve technology applied to verify discharging current and voltage
• 4 authentic samsung 30q, 3000mah. flat top 18650-battery for flashlight etc

5. 2 Pcs of Aplus Nylon Carrying Case Pouch Holder Bag Storage Organizer

6. 18650 Battery Charger,MiBOXER Smart Universal 4-Bay Automatic LCD Display,Fast Charging Rechargeable

• Safety protection,3 year warrantymiboxer c4 chargeable battery charger is made of pc fire retardant material,with excellent heat dissipation and electronic circuit design.when battery is reversed or short-circuited,it will show error symbol.after battery fully charged, it just stopped charging automatically.if the battery is over discharged, our smart charger can even...
• Fast chargeing, easy to usethis intelligent battery charger can charge 4 rechargeable different type of chargeable batteries simultaneously. you can set the single-channel charging current up to 1.5a max. automatically/manually select the optimum charge current. supports 4-channel simultaneous independent charging without affecting. please noticed that it can auto det...
• Universal battery chargerthe universal battery charger is fully compatible with: li-ion / imr / inr / icr / lifepo4(3.6v): 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430,14500, 14650, 16500,16340(rcr123), 16650, 17350, 17500, 17650, 17670, 18350, 18490,18500,18650,18700,20700,21700,22500, 22650,25500, 26500, 26650, ni-mh / ni-cd(1.4...
• Muti-functional lcd displaythis 18650 and aaa/aa battery charger with large screen can show voltage,current,charging time,mode,battery type,internal resistance and battery capacity data,easily to understand the charging datum. the lcd back-light will become dark after 1 minutes without any operation. its 4th bay also has discharge function.
• Package battery fast charger(without battery), power cord, user manual. our smart battery chargers come with 3 years warranty.any quality problems or questions,just feel free to contact us by email ,protected

7. Universal Battery Charger EASTSHINE S2 LCD Display Speedy Smart Charger for Rechargeable Batteries

• 1. safety first: s2 charger's compliant standard--ul cul tuv gs pse fcc ce c-tickcb rohs, and with fire retardant materials, intelligent circuits and worldwide warranty, please confirm your battery is genuine / not damaged / quality / rechargeable before charging.
• 5. what you get: s2 2 slot smart recharger, dc vehicles / ac wall adapter, happy card with 24 hours warm service, 30 days freerefund, 2 years free replacement, lifetime maintenance.
• 4. 2 slots smart chargers: automatically detect battery status, select charge mode, cut off power at full or overtime, and lcd display each cells voltage and type, charging current and time.
• 2. universal charger for all types of: nimh nicd a double a triple a aa aaa aaaa c sc battery, li-ion lithium-ion lifepo4 imr inr icr 26650 25500 22650 18650 18490 18500 18350 17670 16340 rcr123a 14500 10440 rechargeable cr123 cr123a li ion batteries.
• 3. 2 bay speedy rechargers for: eneloop 2000mah aa 2-hour, nickel amazonbasics 800mah aaa 0.8-hour, 3.7v button top lithium ion 3400mah panasonic ncr18650b 3.5-hour, 3.7 volt flat top liion 2500mah lg he2 2.5-hour @ 1a fast charge current.

8. Universal Smart Battery Charger 4 Bay for Rechargeable Batteries Ni-MH Ni-Cd AA AAA

• 1. safety first: s4 4 slot plug in recharger compliant standard--ul cul tuv gs pse fcc ce c-tickcb rohs,and with intelligent circuits, fire retardant materials. please confirm your battery is genuine / not damaged / quality / rechargeable before charging.
• 2. 4bay universal charger charges simultaneously almost all types rechargeable batteries of multiple different specifications: nimh ni-cad double a triple a aa aaa aaaa c sc nicd, lithium-ion li-fepo4 imr inr icr 26700 26650 26500 25500 22650 18700 18650 18490 18500 18350 17670 17650 17500 17355 16650 16340 rcr123a 14650 14500 14430 10440 18659 20650 18560 liion protect...
• 4. four pack cells digital lcd display smart charger: automatically detect battery status, select charge mode, cut off at full power or overtime, and lcd screen displays each cells voltage and type, charging current and time independently. 2 charge current (500ma slow/ 1000ma fast) and 3.2v lifepo4 options to be chosed manually.
• 5. what you get: eastshine s4 universal 4 slots updated 2020 household battery chargers, dc 12v - 24v auto vehicles / ac 100v - 240v us wall adapter, user manual, happy card with 24 hours warm service, 30 days free refund, 2 years free replacement, lifetime maintenance. do not charge a damaged / inferior battery.
• 3. 4cell speedy charger for: button top eneloop 2000mah aa 2 hour, amazonbasics 800mah aaa 0.8-hour at 1 amp rapid current, flat top 3.7v 3400mah lithium ion panasonic ncr18650b 3.5-hour, 3.6v 2500mah li ion high drain lg he2 2.5-hour @ 1a quick charge current.

9. IMR 18500 1300mAh 3.7V High Drain LiMn Demonfire Rechargeable Battery with Button Top

• Includes two dual battery storage cases to safely and securely store and protect your batteries
• Long-lasting 1300 mah li-mn rechargeable button top batteries with 16.5a amp limit
• No memory effect and can be recharged over 300 times when either partially or fully drained
• Us based seller dedicated to the highest standards of quality and service
• Safe chemistry limn batteries with high thermal stability significantly reduces risk of explosion or bursting into flames when properly charged, used, and stored

10. MiBOXER LCD Display Smart Battery Charger for Rechargeable Batteries Li-Ion Ni-MH Ni-Cd Lifepo4

• Safety protection: with multiple security protection settings, the charger can effectively prevent reverse, short circuit, overcharge, over-current damage to the battery. the slot is flexible enough to effectively prevent corrosion and oxidation, efficient heat dissipation design, combined with fireproof material manufacturing, which makes you using the product without ...
• Intelligent battery charger: rich user interface display, the lcd screen displays the states of the voltage, current, charging time, battery type, internal resistance, capacity, and percentage, which can monitor batteries charging health and let you understand the battery charging state more intuitively.
• Smart detection function: all charging slots can auto detect different types of batteries resistance, automatically adapts the most suitable small charge current according to characteristics of small capacity battery. charging safe and efficient, maximum optimize battery life.
• Full compatible: compatible with li-ion (4.2v/4.35v)/imr/inr/icr/lifepo4, 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430, 14500, 14650, 16500, 16340 (rcr123), 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650, ni-mh/ni-cd(1.48v): a, aa, aaa, aaaa, c, sc.
• Fast and multiple charging modes: 4 slots can be charged independently, automatically detects the batteries type and sets optimal charging current, maximize the battery life. if you install one or two 18650 batteries, the output current can reach 1.5a, more than three 18650 batteries charging, the output current can reach 1.3a. if install ni-mh, ni-cd battery charging u...