XTAR ST2 Quick Charger for Li-Ion Batteries

Item number: 500208

Hersteller
: Xtar


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Lithium-ion batteries Fast and monitored charging. The ST2 automatically detects the internal resistance of your battery cell and then determines the optimum charging speed for your batteries. By directly measuring the temperature at the battery, the charging current is continuously adjusted until it automatically switches off when the battery is full. The charging current can be set to 1A, 2A and 4.1A manual if desired.

Batteries up to max. The XTAR ST2 is a USB fast charger for Li-ion batteries.

With a USB-C input, PD 2.0 and Quick Charge 3.0 charging management, the ST2 charger from Xtar remains flexible and well equipped for the future. The flexible USB connection options make the ST2 ideal for travel Fast charging from different USB power sources enhances the travel charging capabilities of the ST2 charger. 
 

Charging current up to 4.1 per charging slot reinforces the quick-discharge capability of the XTAR ST2 charger

A total of three selectable charging currents are available: 1A, 2A and 4.1A. The PD 2.0 power supply allows the full power of up to 4.1A per charging slot (total 8.2A), the QC3.0 power supply supplies two inserted batteries with 2A per charging slot with one battery even up to 4A. Operation with conventional USB power supplies (2.1A or 1A) is still possible with limited charging current.

Simple microprocessor-controlled operation

The responsive display of the ST2 always shows the current voltage in volts, even after the end of charging. It also shows the currently selected charging current per slot, the charging progress in percent and the current temperature of the battery. After inserting the battery, its internal resistance is displayed for a few seconds, alternating with the charging progress. Two additional status LEDs provide information about the status of the charger.

The power supply of the ST2 is either via a PD2 power supply unit (not included) or QC3.0 power supply unit (not included), but operation with conventional USB connections is also possible with low charging currents.

The following power supply units from our range can be used:
PD2.0: USB-PD power supply 20V/2.25A, 15V/3A, 9V/3A, 5V-3A FLYPOWER
QC3.0: USB power supply QC3.0 3A/2A/1.5A FLYPOWER EP-18WQC3 Quick Charge
           USB power supply QC3.0 5V⎓3A/9V⎓2A/12V⎓1.5A XTAR DBS15Q Quick Charge 18W
 

The following lithium-ion battery types can be charged with the Xtar ST2 :

Li-Ion IMR, INR, ICR (3.6/3.7V nominal) up to 4.2V in the sizes: 16650, 18650, 18700, 20700, 21700, 25000, 26500, 26650.
Basically, cells from 60.3 mm to 77 mm in length fit.
*Smaller batteries can be used with the charger, but may not be optimal with the high charging current . Please pay attention to the maximum charging current specified in the data sheet of the batteries to be charged.

Xtar ST2 Product information:

  • 2 charging bays for batteries up to 26700 (also protected, up to 77mm length)
  • Separately adjustable charging current for both slots, selectable in 3 steps: 1A, 2A & 4A
  • Automatic pre-selection of the charging current based on the internal resistance
  • Manual adjustment of the charging current possible
  • All compartments are individually monitored, incl. temperature monitoring and, if necessary, throttling of the charging current
  • Informative display showing battery voltage in real time, even after charging is complete
  • Display of internal resistance when a battery is inserted
  • TC-CC/CV charging programme for Li-ion batteries
  • Automatic charge stop when charging is complete
  • Reactivation of deeply discharged batteries
  • Safe: reverse polarity protection, overcharge protection, overload protection, short-circuit protection, temperature monitoring of the batteries
  • Powerful 12V 4A mains adapter incl. EU mains cable included.
  • Available certificates: RoHs, CE, FCC
  • With German manual

Further information:

Scope of delivery: Charger, 2x cables USB-C to USB-A and USB-C to USB-C, Multilingual manual.

 

Input PD2.0 15V⎓3A 
Input QC3.0 5V⎓3A / 9V⎓2A
Charging current PD2.0 USB power supply unit 4.1Ax2 / 2Ax2 / 1Ax2
Charging current QC3.0 USB power supply unit 4.1Ax1 / 2Ax2 / 1Ax2
Charging current 2.1A USB power supply unit 2.0Ax1 / 1Ax2
Charging current USB 1A 1.0Ax1 / 0.5Ax2
Charging voltage 4.20V ± 0.05V
Termination 1/10 of the initial current
Reactivation 10mA - 50mA
Operating temperature 0 °C - 40 °C
Dimensions L * W * H 75 * 149 * 33 mm
Weight 156 g

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Für die Länder Schweiz und Liechtenstein fallen lediglich die Nettopreise der jeweiligen Artikel an, ohne deutsche MwSt. Die Verzollungskosten werden separat berechnet. Bei Einfuhr müssen die Steuern des jeweiligen Landes beglichen werden.

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