XTAR Charger for Cylindrical Lithium-Ion Batteries 18650 X2
X2 is a professional processor charger with TC/CC/CV three-stage charging processor and LCD display. Carries 1-2 Li-ion 3.6/3, 7V and Ni-MH cells with any capacity in sizes AAA/R03, AA/R6, SUB-C/SC, R14/C, 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650.
The Xtar X2's backlit LCD display shows the charger's operating status in real time: Rechargeable batteries expressed in mAh, battery voltage, and charging current.
What is the TC/CC/CV charging method? It is a three-stage process of charging lithium-ion cells to keep them in good condition by charging a right current at each stage and completing the charging process at the right time.
The various stages of the TC/CC/CV process are:
• TC phase: Discharged cells below 2.9 V become 'awake' to lower currents.
• DC phase: Upon reaching 2.9V, the cell is charged with a constant current of 1x 2A/2x 1A/2x 0.5A (depending on the amount of cells placed and their size).
• CV phase: When a cell is almost charged, the charger switches to a decreasing current load until it reaches a voltage of 4.2V in the cell. After reaching 4.2V, the charging process is complete - the battery is fully charged.
When purchased from the charger, the batteries will be determined to a natural self-discharge process. Charging will resume when the battery voltage drops below 3.9v.
Box Contents:
1x XTAR Charger for Cylindrical Lithium-Ion Batteries 18650 X2
