fast charger for cylindrical Li-ion 18650 batteries Xtar MC1 Plus

Professional, compact processor-controlled charger
Xtar MC1 Plus
for Li-ion batteries in sizes 18650 and others

Hidden in a small casing is a fully professional processor-controlled charger with a three-stage charging process TC/CC/CV. It charges Li-ion cells 3.6 / 3.7V of any capacity in sizes 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700, 20700, 21700 - only unprotected, 22650, 25500, 26650.

What is the TC/CC/CV charging method? It is a three-stage charging process for Li-ion cells that ensures the cell remains in good condition by charging with the appropriate current at each stage and completing the charging process at the right moment.
The individual stages of the TC/CC/CV process are:
•TC Phase: cells discharged below 2.9V are 'woken up' with a lower current.
•CC Phase: after reaching 2.9V, the cell is charged with a constant current of 0.5A (batteries up to 54mm long) or 1A (batteries longer than 54mm).
•CV Phase: when the cell is almost charged, the charger switches to charging with a decreasing current until a voltage of 4.2V is reached on the cell. After reaching 4.2V, the charging process is complete - the battery is fully charged.

Batteries with a voltage of 4.1V or higher are treated by the charger as charged. To recharge such a battery to full, it must be placed in the charger before plugging it into power. Charged batteries left in the charger will undergo a natural self-discharge process. Charging will resume when the voltage on the battery drops below 4.1V.

The Xtar MC1 Plus charger has a reactivation function for deeply discharged cells and cells with a voltage of 0V. Many chargers on the market are unable to charge such batteries. Here, the Xtar MC1 charger comes to the rescue, which in many cases allows for the 'rescue' of such cells. Just insert the deeply discharged battery into the MC1 charger, just like with normal charging - the charger will detect the discharged cell and attempt to reactivate it. Note! Cells discharged below a certain level may suffer irreversible damage and their reactivation may be impossible. It is advisable to avoid overly deep discharging of Li-ion batteries - this can lead to a significant reduction in their lifespan and capacity or render them completely inoperable.

Chargers from other manufacturers can significantly raise the temperature of the charged cells during charging. Excessive heating of the cells can cause them to wear out faster. In designing the MC1 Plus charger, Xtar has gone a step further than the competition, solving this problem in a simple way: external power supply was used. As a result, the temperature of the battery charged in the MC1 Plus will rise by a maximum of 15 degrees.

Included with the Xtar MC1 Plus charger is a micro USB cable and a protective case for transporting the charger. The power supply is not included in the set. Any charger with a micro USB cable, e.g., from a phone, or a USB port on a computer with a free USB port is sufficient to power the charger. The recommended minimum power of the charger is 1A (1000mA). It is possible to use a charger with lower power, but in that case, the charging time will be extended.