C4S Charger - UltraFire
C4S Charger - UltraFire

UltraFire C4S 4-Slot Battery Charger – LCD Display, US Plug | 18650, 21700, 26650 Lithium Batteries

$39.99
SALE % OFF

Features

Reliable Charging for All Your Lithium Batteries
The UltraFire C4S is a versatile 4-slot charger designed for a wide range of lithium batteries, including 18650, 21700, 26650, and more. Whether for flashlights, tools, or everyday devices, it keeps your batteries ready when you need them.

 

Smart LCD Display
The clear LCD screen shows real-time charging status, voltage, and battery health so you always know what’s happening.

 

Safe & Efficient
Built-in protection prevents overcharging, overheating, and short circuits. Operating smoothly from -20℃ to 50℃, it’s reliable even in tough conditions.

 

Universal Compatibility
Supports 26650, 21700, 20700, 18650, 18500, 18350, 17500, 16650, 16500, 16340, 14500, and 10440 lithium batteries.

Free Shipping 

Easy Returns

1-Year Warranty

  • Description

  • Specifications

  • Package

  • reviews

Brand

UltraFire
Title

Model

C4S
Title

Slot

4
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Charging Cell Type

Lithium Battery
Title

Compatible Battery Types

26650, 21700, 20700, 18650, 18500, 18350, 17500, 16650, 16500, 16340, 14500, 10440
Title

Rated Load Voltage

4.2V / 1.48V ; 5V (USB)
Title

Input Voltage

DC10-15V
Title

Built-in Protected Circuit

Yes
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Operating Temperature

-20℃ to 50℃ (Full Load, Normal Operation)
Title

LCD Screen

Yes
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Dimensions

158.5mm × 115.5mm × 44mm
Title

Weight

6.10 oz (173g)

Packing List

1×C4S Charger

1×Adapter

1×Car Charger Adapter

1×Manual

Customer Reviews

Based on 4 reviews
50%
(2)
25%
(1)
25%
(1)
0%
(0)
0%
(0)
A
Amanda Green

Love this charger! Handles everything from 18650 to 21700 no sweat. Feels solid and safe, and I really like having four slots at once.

K
Kevin Brooks

Works great and the display is handy. Only thing is the fan gets a little warm after a long charge, but no real issues.

D
Daniel Wright

Charges all my batteries without a problem. The LCD screen is super clear and lets me see exactly what’s going on. Compact and lightweight too—perfect for my gear bag.

P
Promedia Digital
Somewhat satisfied

Somewhat satisfied
C4S Charger - UltraFire

UltraFire C4S 4-Slot Battery Charger – LCD Display, US Plug | 18650, 21700, 26650 Lithium Batteries