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20 Best 4 Bay 18650 Battery Charger of 2023 – Romance University
After hours researching and comparing all models on the market, Romance University finds out the Best 4 Bay 18650 Battery Charger of 2023. Check our ranking below.
2,552 Reviews Scanned
- 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: 𝟣𝟪𝟨𝟧𝟢 26650 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 take it to travel
- 🔋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.
- 4 Bay Battery Charger: The 4 Bay charge independently without interfering with each other, and the rechargeable battery charger is made of flame-retardant PC material with excellent heat dissipation and electronic circuit design
- LCD Display: LCD display is used to monitor the information of four slots. The screen can display each battery parameter independently, such as voltage, current, charge, battery type. Touch the screen switch to adjust the screen brightness (30s of inactivity will reduce the brightness)
- WIDE COMPATIBILITY：Compatible with all 3.7v Li-Ion Batteries and 1.2v NiMH/NiCd AA Batteries: 18650 21700 21750 18700 10440 14500 16340 17335 17500 17650 18350 18500 26650 25500 and AA AAA C Batteries. The charger will automatically identify the battery type and charge independently. Applicable battery length ranges from 29mm to 70mm
- Fast Charging：Our 4 Bay battery charger stands out for its superior charging speed. When you charge two Li-ion batteries at the same time, each slot can provide up to 1A of current, ensuring your batteries are charged quickly. When loading 4 batteries (Li-ion/Ni-MH, NI-Cd) at the same time, the maximum current per slot is 500mA. Whether it is daily use or emergency, our charger can meet your needs for speed.
- What will you get：Battery charger *1,USB C cable *1,User Manual *1
- 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 high speed charging and reach a single slot max output of 3000mA.
- 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, 16340,14500 and more).
- PERFECT FOR TRAVEL AND EDC - This bundle includes an organizer to keep you organized when you are on the go.
- Smart Universal Charger: Our 18650 battery charger can choose Automatic Recognition and Manual Adjustment for charging. We can slect different charging types for rechargeable batteries Li-ion Ni-MH/Cd LiFePO4 AA AAA.
- Faster and Efficient Charger: This 18650 Rechargeable Battery charger has three levels for intelligent auto-set current 500mA /1000mA/2000mA, Note:2000mA current is fixed only for the fourth slot.
- 72MM Long Slot: This 4 Bay universal battery charger suitable for most rechargeable Batteries, It can Support Battery less than 72 mm Length. (It cannot charge 1.5V Li-ion AA AAA batteries）
- Multi-functional LCD Screen: Our Intelligent 18650 charger can display multiple working parameters, Such as Charging progress, Battery types, Charging capacity, Voltage and Current.
- Safe & Secure: This Li-ion battery charger has multiple safety protection functions: Overcharge, over-discharge, short circuit, Reverse connection, and can intelligently identify the bad battery.
Last update on 2025-07-04 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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Romance University provides an 4 Bay 18650 Battery Charger 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 4 Bay 18650 Battery Charger currently available on the market.
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- Specifications: How powerful they are can be measured.
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- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 4 Bay 18650 Battery Charger.
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FAQ:
Q: Which is the best charger for 3.7V batteries?
A: For 3.7V (4.2V)Lithium Ion batteries its doing a good job. 2-Bay multi chemistry charger. It can handle all kinds of chemistries and sizes. Ranging from 10440 to 32650 and D batteries. It doesn’t work with LifePO4 batteries. Simple, and fast charger! This charger is one of the fastest chargers on the market that can charge 26650 batteries at 3A.
Q: Is there a charger that can charge 8 batteries?
A: It can charge 8 batteries at 1A.. very impressive. The charger does get hot of course. It can also charge 4.35V batteries and LifePO4 batteries. There aren’t many 8 bay chargers on the market, and this is rather an impressive charger.
Q: Is there a charger for a 10440 battery?
A: It can not charge LiFePO4 batteries, and the charge current for a 10440 battery is a little high at 0.5A. Still a recommended charger for single cells. Small charger with normal power plug. Inclusive Discharge function, Analyzer, IR (impenance) test and Refresh function.
Q: Which is the best charger for NiMH batteries?
A: Small Micro USB charger for lithium, NiCd and NiMh batteries! Change current depending on the slider.. so the shorter batteries get charged at 0.5A, larger at 1A. This Micro USB Li-ion charger is about as good as the Klarus K1, except for a few things.