20 Best 18650 Chargers [2025]

Are you looking for the best 18650 chargers? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 18650 chargers.

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1 WISSBLUE 18650 Battery Charger, LCD Screen Can Display Capacity, 2a Fast 18650 Charger, Suitable for... WISSBLUE 18650 Battery Charger, LCD Screen Can Display Capacity, 2a Fast 18650 Charger, Suitable...
2 18650 Lithium Battery Charger, Suitable for Lithium Battery 18650 26650 10440 14500 18500 16340... 18650 Lithium Battery Charger, Suitable for Lithium Battery 18650 26650 10440 14500 18500 16340...
3 Intelligent Charger, Snado LCD Display Universal Smart Charger for Rechargeable Batteries Li-ion... Intelligent Charger, Snado LCD Display Universal Smart Charger for Rechargeable Batteries Li-ion...
4 Universal Battery Charger EASTSHINE S2 LCD Display Speedy Smart Charger for Rechargeable Batteries... Universal Battery Charger EASTSHINE S2 LCD Display Speedy Smart Charger for Rechargeable...
5 6 Bay 18650 Battery Charger Universal Wall Charger for 3.7v Lithium Rechargeable Batteries... 6 Bay 18650 Battery Charger Universal Wall Charger for 3.7v Lithium Rechargeable Batteries...
6 EBL Universal Battery Charger Speedy Smart Lithium Charger for 3.7V Rechargeable Batteries Li-ion... EBL Universal Battery Charger Speedy Smart Lithium Charger for 3.7V Rechargeable Batteries Li-ion...
7 18650 Battery Charger, SEIVI LCD Display Universal Smart Charger for Rechargeable Batteries Li-ion... 18650 Battery Charger, SEIVI LCD Display Universal Smart Charger for Rechargeable Batteries...
8 18650 Charger 3.7V Rechargeable 18650 Battery Charger 4 Bay Li ion for Rechargeable Lithium... 18650 Charger 3.7V Rechargeable 18650 Battery Charger 4 Bay Li ion for Rechargeable Lithium...
9 Skywolfeye 10 Slot Battery Charger 18650 Universal Smart for 3.7v Li-ion Rechargeable Batteries... Skywolfeye 10 Slot Battery Charger 18650 Universal Smart for 3.7v Li-ion Rechargeable Batteries...
10 18650 Battery Charger, Keenstone Smart Universal Charger LCD Display for Rechargeable Batteries... 18650 Battery Charger, Keenstone Smart Universal Charger LCD Display for Rechargeable Batteries...
11 Universal Smart Battery Charger 4 Bay for Rechargeable Batteries NiMH NiCd AA AAA C Li-ion LiFePO4... Universal Smart Battery Charger 4 Bay for Rechargeable Batteries NiMH NiCd AA AAA C Li-ion...
12 18650 Battery Charger 4 Bay, 18650 Charger 2A Quick Charger for 3.7V Rechargeable Batteries 18650... 18650 Battery Charger 4 Bay, 18650 Charger 2A Quick Charger for 3.7V Rechargeable Batteries 18650...
13 Nitecore i2 Intellicharge Charger for 18650 AAA AA Li-Ion/NiMH Battery Nitecore i2 Intellicharge Charger for 18650 AAA AA Li-Ion/NiMH Battery
14 18650 Battery Charger 4 Bay, Universal Battery Charger with 4 Slot Charger for 18650 14500 18500... 18650 Battery Charger 4 Bay, Universal Battery Charger with 4 Slot Charger for 18650 14500 18500...
15 Universal 18650 Battery Charger, Intelligent LCD Display Charger for Rechargeable Batteries... Universal 18650 Battery Charger, Intelligent LCD Display Charger for Rechargeable Batteries...
16 EBL Universal 18650 Battery Charger for 3.7V Lithium ion Rechargeable Batteries 26650 22650 18650... EBL Universal 18650 Battery Charger for 3.7V Lithium ion Rechargeable Batteries 26650 22650 18650...
17 18650 Battery Charger,MiBOXER 8-Bay Smart Charger with Automatic LCD Display,Fast Charge... 18650 Battery Charger,MiBOXER 8-Bay Smart Charger with Automatic LCD Display,Fast Charge...
18 Batmax LCD Universal Intelligent USB Dual Battery Charger for Li-ion / Ni-MH/Ni-Cd 18650 18490 18350... Batmax LCD Universal Intelligent USB Dual Battery Charger for Li-ion / Ni-MH/Ni-Cd 18650 18490...
19 Nitecore UMS4 Intelligent USB Four Slot Quick Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500... Nitecore UMS4 Intelligent USB Four Slot Quick Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340...
SaleBestseller No. 1
WISSBLUE 18650 Battery Charger, LCD Screen Can Display Capacity, 2a Fast 18650 Charger, Suitable for...
  • 【WIDE COMPATIBILITY】: The Fast 18650 Charger Is Compatible With All 3.7v Lithium Batteries And 1.2v Nimh/Nicd Aa Aaa Batteries. Smooth And Durable...
  • 【SMART LCD DISPLAY】;Lcd4 18650 Charger Monitors Detailed Real Battery Condition, Time Per Charge/Charging Capacity, Battery Voltage, Charging...
  • 【SAFELY ADJUST CHARGING SPEED】: Switch Between Slow/Medium/Fast Charging As Needed, Shorten Charging Time By Up To 35%, Intelligent Circuit To...
  • 【18650 BATTERY CHARGING TIME】: 2.3 Hours Full Lithium Ion Panasonic Ncr18650b 3400mah, 3.5 Hours Full 21700 Battery 5000mah, 0.5 Hours Full...
  • 【UNIVERSAL CHARGER】: Universal Usb Interface, You Can Use Solar Charger, Mobile Power, Computer, Car Charger, Usb Wall Charger, Etc. To Charge...
SaleBestseller No. 2
18650 Lithium Battery Charger, Suitable for Lithium Battery 18650 26650 10440 14500 18500 16340...
  • This lithium polymer battery charger contains current and Vmax detection program to prevent your batteries from overcharging, short circuit protection...
  • Using a usb port to charge, you can charge the battery on the charging head, on the car charger, or on the power bank, wide range of use, more...
  • Stops charging automatically if the temperature of charger or battery gets too high when charging
  • Stainless steel rail is more durable and smooth
SaleBestseller No. 3
Intelligent Charger, Snado LCD Display Universal Smart Charger for Rechargeable Batteries Li-ion...
  • Adopt negative voltage control technology to improve charge efficiency and integrated intelligent power management system;
  • High definition LCD displays real time charging status, Two sets of led indicators show independently when charging, making the charging process...
  • Temperature protection: Stop charging automatically if the temperature of charger or battery gets too high when charging. Stainless steel rail is more...
  • Compatible for Li-ion batteries 18650 18490 18350 17670 17500 16340(RCR123), 14500 Ni-MH/Ni-Cd A AA AAA batteries and 3.7V lithium battery and so on;
  • Snado Intelligent Charger - We guarantee the quality before the item ships. 30 Days Free Refund, 2 Years Free Replacement, Lifetime Maintenance.
SaleBestseller No. 4
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,...
  • 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 26700 22700...
  • 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...
  • 4. 2 Slots Smart Chargers: Automatically Detect battery Status, Select Charge Mode, Cut Off Power at Full or Overtime, and LCD Display Each Cell’s...
  • 5. What you get: S2 2 Slot Smart Recharger, DC Vehicles / AC Wall Adapter, Happy Card with 24 Hours Warm Service, 30 Days Free Refund, 2 Years Free...
Bestseller No. 5
6 Bay 18650 Battery Charger Universal Wall Charger for 3.7v Lithium Rechargeable Batteries...
  • ➤【Lithium Battery Charger】Compatible with 3.7v li-ion rechargeable batteries. Such as Li-ion: 18650 26650 22650 14500 16340(RCR123) 10440 17670...
  • ➤【6 bay 18650 Charger】6 charging channels can charge the battery independently.6 slots can be adjusted according to different battery sizes.
  • ➤【Safety Protection】Perfect protection function:under voltage protection,over voltage protection,over current protection,over temperature...
  • ➤【Output: 4.2V ± 1%】The charging time of 18650 battery charger depends on the capacity of the battery.
  • ➤【Input: AC100-240V】Universal in the world; Whether you are using it at home or traveling abroad, this universal charger can charge your...
SaleBestseller No. 6
EBL Universal Battery Charger Speedy Smart Lithium Charger for 3.7V Rechargeable Batteries Li-ion...
  • Universal Charger for: Freely Charging 1 or 2 Pcs Li-ion IMR INR ICR 18650 18490 18500 18350 17670 16340 RCR123A 14500 10440 Batteries.
  • Smart LED display, The 2 slot charger will charge the lithium batteries when plug in,and the indicator light display in red, then turn into green...
  • The charger uses the MCU control technology, providing the constant current and constant voltage safety model
  • High quality 18650 battery charger with multi protection - more safety for you and your batteries.
  • USB Input with small but durable body, you can charging your batteries with USB adapter, car charger, power bank, anywhere you want to go.
Bestseller No. 7
18650 Battery Charger, SEIVI LCD Display Universal Smart Charger for Rechargeable Batteries Li-ion...
  • 【Compatibility】It applies to rechargeable battery as 32650, 26650, 26500, 25500, 22650, 22500, 21700, 20700, 18700, 18650, 18500, 18490, 18350,...
  • 【SAFETY PERFORMANCE】Compliant standard - UL CE GS FCC RoHS. Built-in intelligent circuits protection to protect the battery safety charged. A...
  • 【LCD DISPLAY】High definition LCD displays real time charging status, 4 sets of led indicators show independently when charging, making the...
  • 【 Temperature protection】Stop charging automatically if the temperature of charger or battery gets too high when charging. Stainless steel rail is...
  • 【What you get】SEIVI SW-4P Universal 4 Slots updated 2020 Household Battery Chargers, User Manual, Happy Card with 24 Hours Warm Service, 30 Days...
SaleBestseller No. 8
18650 Charger 3.7V Rechargeable 18650 Battery Charger 4 Bay Li ion for Rechargeable Lithium...
  • ♻【❗ Note: No B￵atte￵ry Only Ch￵arger】【❗ Only for Lithium -ion Rechargeable Battery,Not AA or AAA Battery,Not NiMH...
  • ♻【Intelligent Ch￵arger】USB Smart Battery Charger 4-Bay Has four independent charging channels, it can charge four lithium batteries at the...
  • ♻【Universal USB interface】 The latest design of the USB battery charger, the working voltage of the battery charger is 5V, so you don't have to...
  • ♻【Safety Assurance】: 𝟣𝟪𝟨𝟧𝟢 Battery Charger 4 Slot Discharge Function Comes with special charge and discharge management circuit....
  • ♻【100% Satisfied Warranty】 If you have any questions about this 4-channel 𝟣𝟪𝟨𝟧𝟢 battery charger, please feel free to contact us...
SaleBestseller No. 9
Skywolfeye 10 Slot Battery Charger 18650 Universal Smart for 3.7v Li-ion Rechargeable Batteries...
  • UNIVERSAL CHARGER--The Battery Charger can charge simultaneously rechargeable batteries of different specifications...
  • ADJUSTABLE SLOT--The 10 slots can be adjustable for different battery length;the battery will not be over-charged and over heat.
  • INTELLIGENT CHARGER--Battery Charger will stop charging automatically when battery was fully charged.
  • INTELLIGENT CHARGER--Battery Charger will stop charging automatically when battery was fully charged.
  • PREMIUM SERVICE--If you have any questions, please tell us at first time. We will provide professional service to solve your problems. There is a...
Bestseller No. 10
18650 Battery Charger, Keenstone Smart Universal Charger LCD Display for Rechargeable Batteries...
  • 🔋UNIVERSAL CHARGER FOR: Li-ion LiFePO4 IMR INR ICR 25500 22650 𝟏𝟖𝟔𝟓𝟎 18490 18500 18350 16340 RCR123A 14500 10440 Batteries, Ni-MH...
  • 🔋HIGH QUALITY: Compliant standard - UL CUL CE TUV GS PSE FCC RoHS C-TICKCB. Built-in intelligent circuits protection to protect the battery safety...
  • 🔋LCD DISPLAY: LCD display to monitor the four slots information. Each battery parameter such as voltage (V), current (mA), time (h) can be showed...
  • 🔋MULTI CHARGE OPTIONS: 4 independently bay, 2 charge curent (500mA,1000mA) to meet your various needs; Black and grey are just different in color...
  • 🔋SAFETY: Protection of overcharge, over-discharge, short circuit and reverse polarity.
Bestseller No. 11
Universal Smart Battery Charger 4 Bay for Rechargeable Batteries NiMH NiCd AA AAA C Li-ion LiFePO4...
  • 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...
  • 2. 4bay Universal Charger Charges Simultaneously almost all types Rechargeable Batteries of Multiple Different Specifications: NiMH Ni-Cad Double A...
  • 3. 4cell Speedy Charger Compatible with: Button Top Eneloop 2000mAh AA 2 Hour, Compatible with Amazonbasics 800mAh AAA 0.8-Hour at 1 amp rapid...
  • 4. Four Pack Cells Digital LCD Display Smart Charger: Automatically Detect battery Status, Select Charge Mode, Cut Off at Full Power or Overtime, and...
  • 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,...
Bestseller No. 12
18650 Battery Charger 4 Bay, 18650 Charger 2A Quick Charger for 3.7V Rechargeable Batteries 18650...
  • ⚡【4 Bay 18650 Battery Charger】 Battery Charger Features 4 adjustable slots for charging 4 batteries at the same time. Apply to the 3.7V or 3.8V...
  • ⚡【Universal Smart Charger】One side of the electrode adopts a spring retractable structure, which can charge two batteries at the same time, and...
  • ⚡【USB battery charger】With LED light (red during charging, green when charging is finished), you can see the charging status at a glance without...
  • ⚡【18650 Charger】2 charge curent (500mA,1000mA), meet your different needs at the same time.with battery reverse connection protection, short...
  • ⚡【IN BOX】1x 4 slot Smart Battery Charger, 1 x English Manual. Lifetime support! Buy with confidence. Certified safe by FCC, RoHS, and includes...
Bestseller No. 13
Nitecore i2 Intellicharge Charger for 18650 AAA AA Li-Ion/NiMH Battery
  • This charger recharges lithium, NiMH and NiCd batteries. The electronics detect the inserted battery
  • Adjusts the charging behavior. The LEDs indicate the charging status of each battery in
  • After charging the Intelicharger switches i2 automatically. Capable of charging 2 batteries simultaneously
  • Each of the four battery slots monitors and charges independently. Automatically identifies Li-ion, Ni-MH and Ni-Cd rechargeable batteries
  • 3 Color LED displays charging progress for each battery. Automatically detects battery status and selects the appropriate voltage and charge mode
Bestseller No. 14
18650 Battery Charger 4 Bay, Universal Battery Charger with 4 Slot Charger for 18650 14500 18500...
  • 【 4-Bay 18650 Battery Charger 】The universal battery charger 4 charging slots can set the single-channel charging current up to 1.5A max....
  • 【 USB Battery Charger 】Battery charger with Red/Green led light display, safe and fire prevention PC+ABS material Battery Charger, with...
  • 【 Multi-function Battery Charger 】 The 4 bay can be adjustable for different battery length.This battery charger is suitable for 3.7V Li-ion...
  • 【 Universal USB port Battery Charger】 The latest design USB port battery charger, battery charger operating voltage is 5V, So do not worry about...
  • 【 PACKAGE INCLUDE 】 1pcs USB 4-slot Smart 18650 Battery Charger; 1pcs gift box; Battery charger size: 4.7x3.5x1.2in. Warranty: Gracetop provides...
Bestseller No. 15
Universal 18650 Battery Charger, Intelligent LCD Display Charger for Rechargeable Batteries...
  • 【Full Compatible】 Yonii D4 battery charger suitable most rechargeable batteries size with 3.7 volt Li-ion/IMR/INR/ICR for 10440, 14500, 14650,...
  • 【Fast Battery Charger】 Independent 4 slots support charging 4 different batteries at the same time. The max charging current is 2A. By button...
  • 【Smart LCD Display】 Intelligent LCD battery charger automatically identifies battery type and start working, button “C” can switch the...
  • 【Multi Protect】 Universal battery charger equip advanced MCU control system. Protection of overcharge, over-discharge, short circuit and reverse...
  • 【Safety at All】Certified safe by FCC, RoHS, and includes one year warranty and lifetime support from our friendly service team. 2 Year Free...
Bestseller No. 16
EBL Universal 18650 Battery Charger for 3.7V Lithium ion Rechargeable Batteries 26650 22650 18650...
  • [Wide Compatibility] - The universal 18650 battery charger can freely charging 1 or 2 pcs 26650 22650 18650 18490 18350 17670 17500 16340 (RCR123)...
  • [High-speed 3.7V Li-ion Battery Charger] - Up to 1000mA charging current for 3.7v lithium-ion battery, twice faster than normal 3.7 volt battery...
  • [Large LCD Display] - Show real time comprehensive and accurate information on battery charge status.
  • [Charging Anywhere & Anytime] - The 18650 battery charger with a Micro USB input port, you can power it by PC, adapter, power bank, and car charger.
  • [Mult-Protection] - Advanced MCU control and -∆V function, over-heat and over-current protection, over-voltage protection, short-circuit protection,...
SaleBestseller No. 17
18650 Battery Charger,MiBOXER 8-Bay Smart Charger with Automatic LCD Display,Fast Charge...
  • ⚡【8-Bay Battery Charger 】Our chargeable battery charger is made of PC Fire retardant material with excellent heat dissipation and electronic...
  • ⚡【Universal Battery Charger】Multi-bay battery charger is fully compatible with Li-ion /IMR /INR /ICR /LiFePO4(3.6V): 10340, 10350, 10440, 10500,...
  • ⚡【Fast Charging, Easy to Use】This Intelligent battery charger charges 8 rechargeable different type of cylindrical batteries simultaneously. You...
  • ⚡【Multi-Functional LCD Display】This 18650 and AAA/AA battery charger with large screen display can show voltage,current,charging...
  • ⚡【Birthday Gift Choice】Package includes 1* Battery fast charger(without battery), 1* power adapter, 1* user manual. One of memorable presents...
Bestseller No. 18
Batmax LCD Universal Intelligent USB Dual Battery Charger for Li-ion / Ni-MH/Ni-Cd 18650 18490 18350...
  • 2 bays Universal Intelligent Charger designed for Li-ion / Ni-MH/ 18650 18490 18350 17670 17500 16340(RCR123) 14500 AA AAA AAAA Rechargeable Batteries
  • It can charge two batteries simultaneously and independently.
  • Battery charger with smart LCD shows charging status, 4 LEDS on means charged fully
  • Integrated high-performance protected circuit automatically protects against overcharge, over discharge and short-circuiting
  • Note: Charger only, the batteries are not included. Package included: 1 LCD Dual Battery Charger + Micro USB Cable + Manual; Product Size:120x60x20mm
Bestseller No. 19
Nitecore UMS4 Intelligent USB Four Slot Quick Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500...
  • FAST AND EFFICIENT CHARGING- Reach a maximum total of 2000mA when using a 2A output USB power adapter. Connect a quick charge (QC) power adapter for...
  • LCD DISPLAY- Reports key realtime information such as battery health, charging status and charging mode.
  • INTELLIGENT CHARGING- Automatically selects appropriate charging current and voltage.
  • BATTERY TYPES & SIZES - Compatible with various battery types (li-ion/imr/lifep04/ni-cd/ni-mh) and common battery sizes including (18650, 21700,...
  • PERFECT FOR TRAVEL AND EDC - This bundle includes a LumenTac battery organizer to keep you organized when you are on the go.

Having trouble finding a great 18650 chargers?

This problem is well understood by us because we have gone through the entire 18650 chargers research process ourselves, which is why we have put together a comprehensive list of the best 18650 chargerss available in the market today.

After hours of searching and using all the models on the market, we have found the best 18650 chargers for 2023. See our ranking below!

How Do You Buy The Best 18650 Chargers?

Do you get stressed out thinking about shopping for a great 18650 chargers? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 18650 chargers, which is why we have assembled a comprehensive list of the greatest 18650 chargers available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 18650 chargers that you consider buying. Your questions might include the following:

  • Is it worth buying an 18650 chargers?
  • What benefits are there with buying an 18650 chargers?
  • What factors deserve consideration when shopping for an effective 18650 chargers?
  • Why is it crucial to invest in any 18650 chargers, much less the best one?
  • Which 18650 chargers are good in the current market?
  • Where can you find information like this about 18650 chargers?

We’re convinced that you likely have far more questions than just these regarding 18650 chargers, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 18650 chargers, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 18650 chargers. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 18650 chargers buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 18650 chargers currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 18650 chargers has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 18650 chargers?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 18650 chargers.
  5. Customer Ratings: Number ratings grade 18650 chargers objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 18650 chargers.
  7. Product Quality: You don’t always get what you pay for with an 18650 chargers, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 18650 chargers is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 18650 chargers information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 18650 chargers is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: What is the best 18650 unprotected battery and Charger?

A: ► 【Best Match with Your Mod】Hand-Held&stylish design,2.1A output for your unprotected 18650 batteries ► 【As a Fast Battery Charger】Fully charge 1x2500mAh 18650 in 1.5hrs or 2x2500mAh 18650 in 3hrs. ►【Your Safety First】CE,FCC and RoHS Certification,with Fire Retardant Materials,Intelligent Circuits and Worldwide Insurance.

Q: Can a 18650 be charged without a specific Charger?

A: Yes, you can charge 18650 battery without charger. Using trickle charge will recharge most types of batteries. When you use a trickle charge, it provides a very weak electric current that the cells of the battery can absorb.

Q: What is the best 18650 for vaping?

A: Molicel P26A. The Molicel P26A’s true continuous discharge rating is 25A,but it still holds its place as the best all-around 18650 on the market. Sony VTC5A. Samsung 25R. Samsung 20S. Samsung 30Q.

Q: What’s the safe charge voltage for 18650?

A: 18650 lithium-ion batteries are charged up to 4.2V and down to between 2V and 3V depending on the cell’s specification for cut-off voltage. To be safe, never discharge lower than 3.0V unless you know your cell’s specification. Discharging occurs anytime you use the battery for power.

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