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Professional processor charger for Li-ion 18650/20700/21700/26650 cells with power bank function
In a small housing is hidden a fully professional processor charger with the power bank function with a three-stage TC / CC / CV charging process. Charges 3.6 / 3.7V Li-ion cells of any capacity in size 18650/20700/21700 / 26650. An intelligent built-in balancer controls the charging and discharging process. Thanks to it, the life of the links is significantly extended. The charger always starts by charging a more discharged cell. After reaching a similar level of charging, it starts charging both batteries simultaneously. The same happens when discharged. The charger starts discharging from a more charged cell, when the levels of the charge level out, it starts discharging both batteries at the same time (power bank function).
What is the TC / CC / CV charging method? It is a three-stage Li-ion cell charging process that ensures that the cell is in good condition by charging with the correct current at each stage and by completing the charging process at the right time.
The individual stages of the TC / CC / CV process are:
Batteries with a voltage of 4.1V or higher are considered charged by the charger. To fully charge such a battery, insert it into the charger before turning it on. Charged batteries left in the charger will undergo a natural self-discharge process. Charging will resume when the battery voltage drops below 4.1V.
The Xtar PB2S charger has the function of reactivating deeply discharged and 0V cells. Many chargers on the market cannot charge such batteries. Here, the Xtar PB2S charger comes in handy, which in many cases allows you to ′save′ such cells. Just insert a deeply discharged battery into the PB2S charger, as with normal charging - the charger will detect a discharged cell and attempt to reactivate it.
Warning! Cells discharged below a certain level are irreversibly damaged and their reactivation may not be possible. Avoid too deep discharge of Li-ion batteries - this can lead to a significant reduction in their durability and capacity or lead to their total malfunction.
Chargers from other manufacturers can significantly increase the temperature of the cells being charged during charging. Excessive heating of the cells can cause their faster wear. When designing the PB2S charger, Xtar went a step further from the competition, solving this problem in a simple way: power supply from an external power supply was used. Thanks to this, the temperature of the battery being charged in the PB2S will rise by a maximum of 15 degrees.
The Xtar PB2S charger comes with a USB TYPE C cable. The adapter is not included in the set. To power the charger, any charger with a USB socket is sufficient, e.g. from a phone or a computer with a free USB port. Recommended charger that supports QC3.0 / PD3.0 to take full advantage of the charger. It is possible to use a charger with a lower power but in this case the charging time will be longer.