Charger for 18650 Li-ion / NiMH Xtar MC4S cylindrical batteries

• processor-controlled three-stage TC/CC/CV charging process
• NiMH charging method: 0△V and -△V
• four independent charging channels
• powered by any USB charger (2A recommended)
• compact size - easy to carry
• function of reactivation of deep discharged cells
• protection: short-circuit, thermal, against reverse polarity

What is the TC/CC/CV charging method? It is a three-stage li-ion cell charging process that ensures that the cell is maintained in good condition by charging with the right current at each stage and completing the charging process at the right time.
The different stages of the TC/CC/CV process are:

• TC phase: cells discharged below 2.8V are "awakened" by a lower current.
• PHASE CC: When 2.8V is reached, the cell is charged at a constant current of 0.5A or 1A (depending on the channel and power of the power source used).

• CV phase: When the cell is almost charged, the charger switches to charging with a decreasing current until the 4.2V voltage on the cell is reached. After
• reaching 4.2V, the charging process is complete - the battery is fully charged.

Batteries with a voltage of 4.1V or higher are considered charged by the charger. To fully recharge the battery, insert it into the charger before turning it on. The 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 MC4S charger has the function of reactivating deep discharge cells and 0V cells. Many chargers on the market are unable to charge such batteries. Here comes the Xtar MC4S charger comes to the rescue, which in many cases allows you to "rescue" such cells. Simply insert the deeply discharged battery into the MC4S charger, as with normal charging , the charger will detect the discharged cell and attempt to reactivate it.