10 Best 4 Bay 18650 Battery Chargers

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Bestseller No. 1

18650 Battery Charger 4 Bay Smart Universal Charger for Flashlight Headlamp Battery 3.7V Rechargeable Lithium Li ion Batteries Compatible 18650 26650 21700 10400 Battery Charger (Only AC Charger)

🔌【❗ Note: No Battery Only Charger】【❗ Only for Lithium -ion Rechargeable Battery,Not AA or AAA Battery,Not NiMH Battery】【Li-ion Universal Charger】Suitable for flashlight headlamp batteries. Compatible with 3.7v li-ion rechargeable batteries. Such as Li-ion: 𝟣𝟪￵𝟨𝟧𝟢 266￵50 22650 14500 16340(RCR123) 10440 17670 18490 17500 17335.
🔌【4 Slot Smart Charger】4 charging channels can charge the battery separately.4 slots can be adjusted according to different battery lengths.
🔌【Safety Protection】Perfect protection function:under voltage protection,over voltage protection,over current protection,over temperature protection,short circuit protection,anti-reverse battery protection, Zero Volume Battery Repair and excellent heat dissipation design.
🔌【Output: 4.2V ± 1%】The charging time depends on the quality of the battery.
🔌【Input: AC100-240V】Universal in the world; Whether you are using it at home or traveling abroad, this smart charger can charge your batteries well and make you feel free to travel.

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Bestseller No. 2

Dlyfull 18650 Battery Charger 4 Bay, LCD Display Lithium Battery Charger with USB-C Speed Charging, Independent Slot for 3.7V Li-ion 21700 26650 10340 16340 17335 17500 22650 Rechargeable Batteries

Intelligent Protection: 4-slot independent charging ensures no interference. Features include auto termination, reverse connection, short circuit, and overcharge protection for worry-free charging.
Wide Compatibility: Supports various battery types like 3.7V 10340, 10440, 16340, 17335, 17500, 18650, 21700, 22650, 26650. Type-C input auto-adjusts adapter power, for easy charging anytime, anywhere.
Efficient Charging: Activates 1.9-2.8V batteries (±0.1V tolerance) with 0V and low-voltage activation, ensuring lifespan and safety. CC-CV charging mode enhances reliability.
Intuitive Display: The 3.7V lithium battery charger with LCD screen, enabling users to easily check the battery level and monitor the charging progress at any time.
You will receive: Dlyfull DL4 18650 battery charger, data cable, user manual, 1-year warranty, and 24-hour attentive customer service.

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Bestseller No. 3

18650 Battery Charger 4-Bay 5V 2A for Rechargeable Batteries 3.7V Li-ion TR IMR 18650 14500 16340(RCR123) Red/Green Display (Not Battery)

【18650 Battery Charger】18650 Battery Charger 4 Bay Smart Universal Charger for Flashlight Headlamp Battery 3.7V Rechargeable Lithium Li ion Batteries Compatible 18650 26650 21700 Battery Charger (No Battery Only Charger). 18650 Charger is not compatible with AA or AAA batteries or NiMH batteries.
【USB Charger】The charger has a universal USB interface and operates at 5V, eliminating any worry about high voltage damage and disasters. You can recharge your lithium-ion batteries anytime, anywhere, even by simply plugging it into your laptop or other devices.
【USB Battery Charger】The USB smart battery charger has four independent charging channels, allowing for simultaneous charging of four lithium-ion batteries. The charging indicator shows the battery's charging status, with a red light indicating charging and a green light indicating a full charge.
【18650 Charger】Safety is a top priority, and the charger features special charge and discharge management circuits that prevent reverse, short circuit, overcharge, over-discharge, and over-current damage to the Li-ion battery. This ensures users can use the product without any safety concerns.
【inbox】1pcs 18650 Charger. The product comes with a 100% satisfaction guarantee. If you have any questions or issues with the 4-channel 𝟣𝟪𝟨𝟧𝟢 battery charger, please contact the seller by email for a response within 24 hours. If there are any quality issues, the seller will provide a full refund or send a new charger for replacemen.

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Bestseller No. 4

18650 Battery Charger 4 bay, 18650 Charger 2A Quick Charger for 3.7V Rechargeable Batteries 18650 17670 16340 14500 10440 Battery (Not Included Batteries)

⚡【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 Li-Ion battery. Li-ion LiFePO4 IMR INR ICR 18650 18490 18500 18350 17670 16340 RCR123A 14500 10440 Batteries.
⚡【Universal Smart Charger】One side of the electrode adopts a spring retractable structure, which can charge two batteries at the same time, and is suitable for 10440/14500/16340/17670/18350/18500/18650 and other 3.7V rechargeable batteries.
⚡【USB battery charger】With LED light (red during charging, green when charging is finished), you can see the charging status at a glance without worrying about overcharging; because there is a USB charging cable for charging, you can connect an adapter, move power sources, you can be charged anywhere. Practical and convenient.
⚡【18650 Charger】2 charge curent (500mA,1000mA), meet your different needs at the same time.with battery reverse connection protection, short circuit protection, and the input voltage over-voltage protection alarm function. charger specifications: length 5.12in x width 2.76in x height 1.2in; input: USB DC-5V 2000mAh; output: DC-4.2V 500mAh* 4
⚡【IN BOX】1x 4 slot Smart Battery Charger, 1 x English Manual. Lifetime support! Buy with confidence. Certified safe by FCC, RoHS, and includes one year warranty and lifetime support from our friendly California service team.

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Bestseller No. 5

18650 Battery Charger, Keenstone Smart Universal Charger LCD Display for Rechargeable Batteries Ni-MH Ni-Cd AA AAA Li-ion LiFePO4 IMR 10440 14500 16340 RCR123A 26650

🔋UNIVERSAL CHARGER FOR: Li-ion LiFePO4 IMR INR ICR 25500 22650 𝟏𝟖𝟔𝟓𝟎 18490 18500 18350 16340 RCR123A 14500 10440 Batteries, Ni-MH Ni-Cd A AA AAA AAAA SC Batteries.
🔋HIGH QUALITY: Compliant standard - UL CUL CE TUV GS PSE FCC RoHS C-TICKCB. Built-in intelligent circuits protection to protect the battery safety charged.
🔋LCD DISPLAY: LCD display to monitor the four slots information. Each battery parameter such as voltage (V), current (mA), time (h) can be showed independently by pressing the A/B/C/D button.
🔋MULTI CHARGE OPTIONS: 4 independently bay, 2 charge curent (500mA,1000mA) to meet your various needs; Black and grey are just different in color to meet your multiple aesthetic.
🔋SAFETY: Protection of overcharge, over-discharge, short circuit and reverse polarity.

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SaleBestseller No. 6 −5%

4-Bay 18650 Charger Suit, Universal Smart Charger W￵i￵th 4-Pack 9900mAh Re￵charg￵eable Ba￵tter￵y(Button Top)

SAFETY PERFORMANCE: Built-in intelligent circuits protection to protect the safety charged. A protection against short circuit, overheat, over-voltage and over-discharge.
Temperature protection: Stop charging automatically if the temperature of charger gets too high when charging. Stainless steel rail is more durable and smooth. Worldwide voltage, suitable for the whole world, car adapter is available.
CHARGING DISPLAY: This charger with Red/Green led light display, and automatically stops charging when complete.
Worldwide voltage, suitable for the whole world, car adapter is available.
If you are not satisfied, you can get a full refund within 30 days!

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SaleBestseller No. 7 −20%

18650 Battery Charger 4-Bay 5V/2A for Rechargeable Batteries 3.7V Li-ion TR IMR 18650 18500 14500 16340(RCR123) Red/Green Display (Not Battery)

【 Multi-function Battery Charger 】 The 4 bay can be adjustable for different battery length.This battery charger is suitable for 3.7V Li-ion rechargeable batteries such as 18650/18500/18350/17670/16340/14500/10440 rechargeable batteries.
【 4-Bay Battery Charger 】The universal battery charger 4 charging slots can set the single-channel charging current up to 0.5A max. Automatically select the optimum charge current, Supports 4-channel simultaneous independent charging without affecting.
【 18650 Battery Charger 】Battery charger with Red/Green led light display, safe and fire prevention PC+ABS material Battery Charger, with heat-resisting, low temperature resistance and scratch resistance;
【USB Battery Charger】 The latest design 18650 battery charger, battery charger operating voltage is 5V. Support special charge and discharge management circuit.Made from fire resistant, flame retardant and heat dissipation design,multiple security protection settings,effectively prevent reverse, short circuit, overcharge, over discharge, over-current damage to the battery, which makes users using the product without any safety concern.
【 PACKAGE INCLUDE 】 1pcs 4-slot Smart 18650 Battery Charger; Battery charger size: 5.5x3.5x1.6in. Warranty: 90 days WARRANTY return policy and Lifetime Maintenance,support 24-hour after-sale services.Please Contact us without hesitate if you need any help.

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Bestseller No. 8

18650 Battery Charger Universal Smart 18650 Charger with LED Indicator for 3.7V Lithium ion Battery 18650 21700 26650 18500 16650 14500 Rechargeable Batteries (4 Bay)

🔋Universal 18650 Battery Charger--Can charge for different types of DC cylindrical 3.7v lithium ion battery 18650,10440, 14500, 16650, 14650, 18350, 18500, 16340, rechargeable batteries.(For use with IMR/18650 rechargeable battery lithium 3.7 volt only. Do not attempt to charge primary cells such as Alkaline, Zinc-Carbon, Lithium, CR2 or any other unsupported chemistry).
🔋18650 Battery Charger 4 Bay--Has four independent charging channels, automatically select the optimum charge current, supports 4-channel simultaneous independent charging without affecting.Can charge four lithium ion battery 3.7v 18650 at the same time and can charge two 26650 batteries at the same time.(The 18650 battery and charger is battery included)
🔋Charging Display--This 18650 smart charger with Red/Green led light display, And the rechargeable battery charger 18650 will display the status of each rechargeable battery when charging, Automatically detects battery power status and displays charging progress, and automatically stops charging when complete.
🔋Safety Protection--Comes with special charge and discharge management circuit. With multiple security protection settings, the 18650 balance 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.
🔋Fast Charging--This18650 fast charger charges 4pcs different type 3.7v lithium ion battery 18650 .simultaneously. 18650 Charger charging current up to 4.2V 2A max. Rechargeable battery charger 18650 automatically select the optimum charge current. Supports 4-bay simultaneous independent charging without affecting.

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SaleBestseller No. 9 −17%

6 Bay 18650 Battery Charger Universal Wall Charger for 3.7v Lithium Rechargeable Batteries Compatible 18650 26650 14500 16340(RCR123) 10440 17670 18490 17500 17335 Lithium Battery Charger

➤【Lithium Battery Charger】Compatible with 3.7v li-ion rechargeable batteries. Such as Li-ion: 18650 26650 22650 14500 16340(RCR123) 10440 17670 18490 17500 17335.
➤【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 protection,short circuit protection,anti-reverse battery protection, Zero Volume Battery Repair and excellent heat dissipation design.
➤【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 batteries well and make you feel free to travel.

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Bestseller No. 10

MiBOXER 18650 Battery Charger, Smart Universal 4-Bay Charger, Automatic LCD Display,Fast Charging Rechargeable Li-ion LiFePO4 Ni-MH Ni-Cd AA AAA C 18350 18500 18700 20700 21700 26650 RCR123

⚡【Birthday Gift, 4-Bay Battery Charger】Miboxer 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 activate this battery. If battery is damaged, LCD display will show error and stop charging.
⚡【Universal Battery Charger】4 bay 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(1.48V): AA, AAA, AAAA, C,SC. Dual power input with DC 12V 2A & AC 90-260V.(Support car charge, but car cable is not included)
⚡【Fast Charge, Easy to Use】This 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 detect Li-ion(4.2v) and Ni-MH/Ni-Cd(1.48v), but you need to select set battery type when charging Li-ion(4.35v) and LiFePO4(3.6v)
⚡【Multi-Functional LCD Display】This 4 slot batteries 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, which can measure battery real capacity. Please read its manual or video about 4th slot's discharge function,
⚡【Holiday Gift Choice】Package comes with 1* battery fast charger(without battery), 1* power cord,1* user manual. One of memorable presents that you can give.

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BUYING GUIDE

Choosing the best 4-bay 18650 battery charger involves considering various factors to ensure you get a charger that is safe, efficient, and suitable for your needs. Here’s a detailed guide to help you make an informed decision:

1. Charging Speed:
Evaluate the charging current options of the charger. Some chargers offer variable charging currents, which can be useful if you need to charge batteries quickly or prefer to charge at lower speeds to extend battery life. Look for a charger that balances speed with the longevity of your batteries.

2. Compatibility:
Ensure the charger is compatible with 18650 batteries, and see if it supports other battery types you may use. A versatile charger can be more useful if you have devices that use different battery sizes.

3. Safety Features:
A good charger should have built-in safety features, such as overcharge protection, short circuit protection, reverse polarity detection, and temperature monitoring. These features help prevent damage to your batteries and potential safety risks.

4. Quality and Brand Reputation:
Choose a charger from a reputable brand known for quality products. Established brands are more likely to adhere to safety standards and offer better customer support.

5. Display and Indicators:
A charger with a clear display can provide valuable information such as charging current, charging time, and battery status. LED indicators are more common in simpler models, while advanced chargers may feature LCDs with detailed information.

6. Charging Control:
Some advanced chargers allow you to control the charging process more finely, offering options like selecting the charging current for each bay or having different charging modes (e.g., fast charge, soft start).

7. Portability:
If you need to carry the charger with you, consider its size and weight. Some chargers are designed to be more compact and travel-friendly.

8. Power Source:
Check what types of power sources the charger can use. Some can be powered via USB, AC outlets, or even DC for car chargers, adding to their versatility.

9. Automatic Functions:
Features like automatic battery detection, charge rate adjustment, and auto-shutoff upon completion can enhance convenience and safety.

10. Reviews and User Feedback:
Read user reviews and feedback to learn about real-world performance and any potential issues. Look for consistent comments, either positive or negative.

11. Price and Warranty:
Compare prices and features to find a charger that offers the best value. Check the warranty and the company’s customer service reputation for handling issues and repairs.

12. Certifications:
Ensure the charger meets recognized safety standards and certifications, which can usually be found in the product description or on the manufacturer’s website.

By considering these factors, you can select a 4-bay 18650 battery charger that provides reliability, safety, and convenience, ensuring your batteries are charged efficiently and last longer.

10 Best 4 Bay 18650 Battery Chargers of June 2024

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BUYING GUIDE

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