XTAR X4 – Universal Smart Charger
Recharge your batteries safely with power, simplicity and precision
A smart charger for all formats
The XTAR X4 is a 4-bay universal charger , designed for vapers and users of electronic equipment with rechargeable batteries. It can simultaneously charge up to 4 batteries , while automatically adjusting the charging current to preserve the life of each cell.
Compatible with a wide variety of formats (18650, 20700, 21700, 26650, etc.), the X4 is ideal for those who use multiple batteries on a daily basis. It combines maximum safety , intuitive ergonomics and intelligent charging technology , in a compact and robust design.
Why choose the X4?
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✅ 4 independent slots , to charge several batteries at different levels
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✅ Wide Compatibility : 10440, 14500, 16340, 18350, 18650, 20700, 21700, 26650 and more
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✅ Automatic detection of battery type (Li-ion/IMR/Ni-MH/Ni-CD)
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✅ , clear and detailed LCD display
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✅ Complete protection : overheating, short circuit, reverse polarity
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✅ Over-discharged battery recovery mode
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✅ Fast charging function up to 2A depending on the battery inserted
Performance and embedded intelligence
The XTAR X4 incorporates automatic charging technology that analyzes the inserted battery and adapts the current according to its type, discharge level and capacity.
Each bay works independently , which means you can charge different batteries at the same time , with different intensities if necessary. The device displays in real time:
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The applied charging current
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The current battery voltage
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The elapsed charging time
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The estimated charge level
Its backlit LCD screen offers quick and easy reading of this information, allowing you to keep a precise eye on the process.
Extended compatibility
XTAR X4 charger supports a wide range of batteries , whether IMR, Li-ion, INR, ICR, Ni-MH or Ni-CD . It can therefore be used to charge:
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Batteries for electronic cigarettes (18650, 20700, 21700, 26650, etc.)
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Classic rechargeable batteries (AA, AAA, etc.)
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Batteries for flashlights, cameras, audio devices, etc.
The adjustable spring-loaded bays automatically adapt to the battery size, ensuring a stable hold and a reliable connection without effort.
Enhanced security
several levels of security into its X4 for risk-free charging:
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✅ Reverse polarity protection
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✅ Automatic detection of damaged batteries
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✅ Automatic cut-off in case of overload or overheating
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✅ Flame retardant ABS housing , strong and durable
The over-discharged battery recovery mode allows you to revive batteries that other chargers would refuse, thanks to a gentle and progressive pulse that restores the starting voltage.
Technical characteristics
| Specification | Detail |
|---|---|
| Charging bays | 4 independent |
| Charging currents | 0.5A / 1A / 2A (depending on configuration) |
| Input voltage | DC 5V / 2.1A via power cable |
| Screen | Backlit LCD with detailed information |
| Battery compatibility | Li-ion/IMR/INR/ICR/Ni-MH/Ni-CD |
| Supported formats | 10440 to 26650, AA/AAA included |
| Dimensions | 132 mm × 99 mm × 34 mm |
| Weight | About 200 g |
Box contents
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1 × XTAR X4 Charger
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1 × EU power cable
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1 × Multilingual User Manual
Ease of use in everyday life
With the X4, XTAR offers a charging solution that is accessible to everyone , even beginners. No complicated setup: insert the battery, and the charger takes care of the rest . The LCD screen allows you to follow everything at a glance, and the integrated protections ensure reliable and worry-free charging.
Whether you are a demanding vaper or a regular user of battery-powered devices, the X4 will prove indispensable for keeping your batteries always ready and in perfect condition .
Conclusion
The XTAR X4 combines everything you would expect from a modern charger: power, versatility, safety and simplicity . It is capable of charging almost all formats on the market , with remarkable efficiency and great ease of use.
A trusted ally to extend the life of your batteries and vape with peace of mind.

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