10 Best 4 2v Usb Battery Charger In The Us - Black Friday 2024
Nitecore UMS4 Intelligent USB Four Slot Quick Battery Charger for Li-Ion/Ni-MH/Ni-Cd/IMR 16340 14500 18650 21700 20700 AA AAA and More Batteries, with LumenTac Battery Organizer
9.7 Charging power9.3 Simple to use8.2 movabilityWhy we love it
Fast and efficient charging for various battery types.
LCD display provides essential real-time charging information.
Automatically selects optimal charging current and voltage.
9.7Exceptional
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Value for Money2
Survival Frog33% OffSurvival Frog EasyPower USB AA Rechargeable Batteries -1.2V/1450 mAh Long Lasting Double A USB Rechargeable Batteries - Rechargeable Batteries Co. - (4 Pack)
9.9 Simple to use9.3 lasts a long time8.4 worth the money9.6Exceptional
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3
HiQuickHiQuick 4 Bay AA AAA Battery Charger, USB Input Fast Charging and Independent Charging Slot with Smart LCD Display Battery Charger for 1.2V NiMH NiCD Rechargeable AA/AAA Batteries（USB Cable Included）
Main highlights- Using -DV Control Technology:The charger can precisely control voltage fluctuations to ensure the safety of Ni-MH/Ni-CD rechargeable AA/AAA batteries during charging, achieving stable and efficient charging.
- Saving Charging Time:The rechargeable battery charger can quickly charge 1-4 Ni-MH/Ni-CD AAA batteries in about 2 hours, and 1-4 AA batteries in about 3.5 hours.
- Multiple Protection Functions: The AA AAA battery charger has multiple protection functions such as short circuit protection, overvoltage protection, overcharge protection, overheating protection, reverse connection protection, etc., which can prevent potential safety issues during charging and greatly improve the safety of the charging process.
- LCD: Each battery charging slot is equipped with an LCD display screen, making it very convenient to monitor your charging process and charging status.
- Independent Charging Slots:HiQuick 4 Bay Rechargeable AA AAA Battery Charger allows for 4 independent charging slots, and can independently charge 1-4 Ni-MH/Ni-CD rechargeable AA/AAA batteries.
9.5Excellent
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4
EBLEBL LCD Battery Charger AA AAA Rechargeable Battery Charger - 4 Bay Smart LCD Charger with 2 USB Input Port for Ni-CD Ni-MH Battery
9.3 Simple to use8.9 worth the money8.9 FlexibilityWhy we love it
Fast Charging: 4 hrs 4 batteries
2 Connect Options: Micro USB, Type C
LCD Screen: Real time battery status
9.4Excellent
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5
GRACETOP18650 Battery Charger 4-Bay 5V 2A for Rechargeable Batteries 3.7V Li-ion TR IMR 18650 14500 16340(RCR123) Red/Green Display (Not Battery)
9.5 Simple to use8.9 Charging power8.0 lasts a long timeWhy we love it
Charges multiple batteries simultaneously.
Universal USB interface for versatile charging.
Comprehensive safety features to protect batteries.
9.3Excellent
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6
HeOTERHeOTER Magnetic USB Battery Charger for 26650 21700 20700 18650 16340 Li-ion Rechargeable Battery Cellphone Emergency Charger
Main highlights- Electrode magnetic link design,Automatically stop charging after the battery is fully charged.
- Compatible lithium battery model:
- Applicable to different types of cylindrical rechargeable 3.6V-4.2V lithium batteries.
- 32650, 2700, 26650, 25500, 22700, 22650, 22500, 21700, 20700, 18700, 18650, 18500, 18490, 18350, 17700, 17670, 17650, 17500, 16650, RCR123, 16340, 17350, 16500, 14650, 14500, 14430, 14350 and other different sizes of voltage range 3.6V-4.2V various cylindrical lithium batteries
- 2 In 1: With charge / discharge function, could also charger for your phone as a power bank in for case of emergency
9.1Excellent
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7
HyperPSHyperPS USB Universal Smart Battery Charger for 3.2V LiFePO4 Batteries with 4 Pieces 3.2V LiFePo4 14430 4/5 AA (14 x 43mm) 400mAh Rechargeable Battery
Main highlights- Standard USB interface matches with various power supplies
- Made of heat-resistant ABS plastic, durable and safe
- Compatible with Ni-Zn(A, AA, AAA, AAAA, C, D, SC, N) / LiFePO4 battery
- Capable of charging 4 different type of battery simultaneously
- Automatically detects battery power status and selects the appropriate voltage and charge mode
9.0Excellent
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8
BlomikyBlomiky 2 Pack 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug for Old Version UDI001 UDI008 UDI009 and HJ808 RC Boat Battery UDI001 USB 2
Main highlights- USB charger cable built-in over-charged IC circuit protection,Red ligth is solid when charging, change to green light solid after full charged. 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug for Old Version UDIRC UDI001 UDI008 RC Boat
- Do not fit other device besides HJ808 UDI008 UDI001 RC Boat. SM-4P Connector Plug, Only in RC Boat Battery which use same SM-4P plug. When put in plug convex side on above,flat side on below., first and third pin is positive, second and forth pin is negative. please make sure your battery is same. don't reversed.
- Charger cable suitable for Adventure Force 1:8 Trail Chaser RC Cars Buggy.
- 7.4V charger cable suitable for DEERC HJ812 RC Boat Battery, Charger cable suitable for RANFLY RC Boat . Charger cable suitable for Hongxunjie HJ805 HJ808 HJ811 HJ812 HJ815 RC Boat battery
- 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug for batttery fit for DEERC 2008 RC Boat Remote Control Boat with LED Light and HONGXUNJIE HJ808 Red and Blue 2.4Ghz RC Boat
- 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug for Altair AA102 Big size Red RC Boat and Altair MidSize AA Wave RC Remote Control Boat Yellow colour,
- 7.4V / 2 x 3.7V 400mA USB Charger Cable with SM-4P 4 pin Plug fit for Cheerwing Venom Black orange RC Boat Remote Control Boat battery.
8.7Very Good
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9
ABSOK6 Pcs Battery Charger Module USB TP4056 3.7V 4.2V to 9V 5V 2A Charge Discharge Integrated Step Up Module,18650 Lithium Li-ion Battery Charger Module
Main highlights- Small and delicate: 1.3 in x 0.92 in/33 mm x 23 mm
- Package contains: 6 * Lithium Li-ion Battery Charger Module
- Material: Battery charger module made of electronic components.Can be used for multimeter, converted to lithium battery charging
- Instructions for use: TP4056 Charger Module can be used for multimeter to convert to charge lithium batteries. VIN+ port input 5V solar panel, BAT+ port can output 4.2V to charger 3.7V 18650 battery
- Features: Battery charger module combines the TP4056 battery charger with a boost circuit. Adds a battery and converts a low power DC device to a USB rechargeable device
8.6Very Good
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10
BlomikyBlomiky 2 Pack 3.7V 500mAh Li-ion Rechargeable Battery SM 2P Plug with USB Charger Cable for Double Sided RC Stunt Car Small RC Boat Tumbling Amphibious RC Car RC Truck and C63 Battery and USB 2
9.7 Remote Control9.1 worth the moneyWhy we love it
Long lasting 500mAh 600mAh capacity
Compatible with many RC Cars
Fits various boat and car models
8.4Good
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