Charger / Power bank for 18650 XTAR PB2S batteries

Professional processor charger for Li-ion cells 18650/20700/21700/26650 with power bank functionset charging method: TC /CC / CVdwa independent charging channelsactivation of deeply discharged cells and 0V cellschairport: 2x2A / 2x1A / 1x2A | charging voltage: 4.2V efficient converter - efficiency 92% magnetic cover for the charging chamberpowered with USB TYPE C QC 3.0 and PD 3.0 - (no power supply included)protection: thermal, short-circuit, against reverse insertion of the batteryIn a small housing there is a fully professional processor charger with a power bank function with a three-stage TC / CC / CV charging process. It charges Li-ion cells 3.6 / 3.7V with any capacity in size 18650 / 20700 / 21700 / 26650. The intelligent built-in balancer controls the charging and discharging process. Thanks to it, the life of the cells is significantly extended. The charger always starts by charging a more discharged cell. After reaching a similar level of charging, it begins to charge both batteries at the same time. The same happens with discharge. The charger starts discharging from a more charged cell, when the charge levels equalize, it begins to discharge both batteries at the same time (power bank function). What is the TC/CC/CV charging method? It is a three-stage charging process for Li-ion cells to ensure that the cell is kept in good condition by charging with the right current at each stage and completing the charging process at the right time. 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: when 2.9V is reached, the cell is charged with a constant current of 2x2A / 2x1A / 1x2A.? 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. When 4.2V is reached, the charging process is completed - the battery is fully charged. Batteries with a voltage of 4.1V or higher are treated as charged by the charger. To fully recharge such a battery, you must insert it into the charger before turning it on to the power supply. 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 PB2S charger has the function of reactivating deeply discharged cells and cells with a voltage of 0V. Many chargers on the market are not able to charge such batteries. This is where the Xtar PB2S charger comes in handy, which in many cases allows you to 'rescue' such cells. Simply insert the deeply discharged battery into the PB2S charger, as with normal charging - the charger will detect the discharged cell and attempt to reactivate it. Remark! Cells discharged below a certain level are irreversibly damaged and may not be possible to reactivate. Too deep discharge of Li-ion batteries should be avoided - this can lead to a significant reduction in their durability and capacity or lead to their complete failure.Chargers from other manufacturers can significantly increase the temperature of the cells being charged during charging. Too much heating of the cells can cause them to wear out faster. When designing the PB2S charger, Xtar went a step further from the competition, solving this problem in a simple way: power from an external power supply was used. Thanks to this, the temperature of the battery charged in the PB2S will increase by a maximum of 15 degrees. Complete with the Xtar PB2S charger we get a USB TYPE C cable. Any charger with a USB port, e.g. from a phone or a computer with a free USB port, is enough to power the charger. Recommended charger supporting QC3.0 / PD3.0 to take full advantage of the charger's capabilities. It is possible to use a charger with less power, but in this case the charging time will be extended. Product data:manufacturer: Xta