fast charger for cylindrical li-ion 18650 batteries Xtar VP1

Hidden in a small casing is a fully professional processor-controlled charger with a three-stage charging process TC/CC/CV. Xtar VP1 charges Li-ion cells 3.6 / 3.7V. It supports batteries of any capacity in sizes 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700, 22650, 25500, 26650. The charging current is set using a button on the casing. The charging current is common for both channels.

Xtar VP1 is equipped with an LCD display that informs about the charging current, charging progress, and the current voltage of the batteries.

What is the TC/CC/CV charging method? It is a three-stage charging process for Li-ion cells that ensures the cell is kept in good condition by charging with the appropriate current at each stage and ending 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 and voltage value selected by the user (default 0.25A).
•CV Phase: when the cell is almost fully charged, the charger switches to charging with a decreasing current until the appropriate voltage on the cell is reached. Once this is achieved, the charging process is complete - the battery is fully charged.

Batteries left in the charger will undergo a natural self-discharge process. Charging will resume when the voltage on the battery drops below 3.9V.

The Xtar VP1 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 VP1 charger comes to the rescue, which in many cases allows for the 'rescue' of such cells. Just insert the deeply discharged battery into the VP1 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. Avoid deep discharging 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 VP1 charger, Xtar has gone a step further than the competition by solving this problem simply: an external power supply is used. As a result, the temperature of the battery being charged in the VP1 will rise by no more than 15 degrees.

Included with the Xtar VP1 charger is a power supply with an EU plug and a 12V car cigarette lighter cable.