Super fast charger for cylindrical li-ion 18650 batteries Xtar SV2 (+Ni-MH)

SV2 is a professional processor-controlled charger with a three-stage charging process TC/CC/CV and an LCD display. It charges 1-2 Li-ion cells 3.6 / 3.7V and Ni-MH of any capacity in sizes AAA/R03, AA/R6, R14/C, R20/D, 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, 32650.

The backlit LCD display of the Xtar SV2 charger continuously shows the charging status of the batteries expressed in percentage.

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 specified by the user.
•CV Phase: when the cell is almost fully charged, the charger switches to charging with a decreasing current until the voltage of 4.2V is reached on the cell. After reaching 4.2V, 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 3.94V.

The Xtar SV2 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 SV2 charger comes to the rescue, which in many cases allows for the 'rescue' of such cells. Simply insert the deeply discharged battery into the SV2 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 excessively deep discharging of Li-ion batteries - this can lead to a significant reduction in their lifespan and capacity or render them completely inoperative.