XTAR MC2 charger for 18650 batteries
📦 In stock - Usually dispatched within 24 hours
Professional, two-channel, compact processor charger
Xtar MC2
for Li-ion batteries (lithium-ion cells) in sizes 18650 and others
The most important features
- CPU-controlled three-stage TC/CC/CV charging process
- two independent charging channels
- powered by any micro USB charger or from a computer's USB port (min. 0.5A)
- small dimensions - easy to carry
- reactivation function for deeply discharged cells
- protection: short circuit, thermal, reverse polarity
A fully professional processor charger with a three-stage charging process is hidden in a small housing TC/CC/CV . Charges 1-2 Li-ion 3.6 / 3.7V cells of any capacity in sizes 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700. It is also possible to charge one battery of size 20700, 21700 - only unsecured.
What is the TC/CC/CV charging method? It is a three-stage process of charging Li-ion cells, ensuring that 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 2.85V are "waked up" with a lower current.
- CC phase: after reaching 2.85V, the cell is charged with a constant current of 0.5A or 0.25A (depending on the power source used).
- CV phase: when the cell is almost charged, the charger switches to charging with decreasing current until the cell voltage reaches 4.2V. After reaching 4.2V, the charging process is completed - the battery is fully charged.
Batteries with a voltage of 4.1V or higher are treated by the charger as charged. 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.
Charger Xtar MC2 has the function of reactivating deeply discharged cells and cells with a voltage of 0V. Many chargers on the market are unable to charge such batteries. This is where a charger comes in handy Xtar MC2 , which in many cases allows you to 'rescue' such cells. Just insert the deeply discharged battery into the MC2 charger, as with normal charging - the charger will detect the discharged cell and attempt to reactivate it. Attention! Cells discharged below a certain level are irreversibly damaged and may not be reactivated. Avoid discharging Li-ion batteries too deeply - this may significantly reduce their durability and capacity or lead to their complete failure.
Chargers from other manufacturers may significantly increase the temperature of the charged cells during charging. Excessive heating of cells may cause them to wear out faster. When designing the MC2 charger, Xtar went a step further than the competition, solving this problem in a simple way: it was powered by an external power supply. Thanks to this, the temperature of the battery charged in MC2 will increase by at most 15 degrees.
Complete with charger Xtar MC2 we receive a micro USB cable and a cover to protect the charger during transport. The set does not include a power supply. To power the charger, all you need is any charger with a micro USB cable, e.g. from a phone, or a USB socket, or a computer with a free USB port. The recommended charger power is 1A (1000mA).