What is the TC / CC / CV charging method? It is a three-stage process of charging Li-ion cells that ensures that the cell is in good condition by charging with the right current at each stage and ending 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" by a lower current.
• CC phase: after reaching 2.9V, the cell is charged with a constant current of 500mA / 1000mA / 2000mA.
• CV phase: when the cell is almost charged, the charger switches to charging with decreasing current until it reaches 4.2V on the cell. After reaching 4.2V, the charging process is completed - the battery is fully charged.

HIGH COMPATIBILITY

Compatible with most popular battery sizes.
• 3.6V / 3.7V Li-ion / IMR / INR / ICR: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, 32650
• Ni-MH / Ni-CD rechargeable batteries: AAAA / AAA / AA / A / SC / C / D
• Packages: 11.1V / 3S package

IDEAL FOR PACKAGES

It will charge your 11.1V pack evenly and fully.
The Dragon charger is equipped with a 11.1V / 3s balancer port for charging 3s packets with 1A current. Thanks to the balancer, we can be sure that every link in our package will be evenly charged.

ADJUSTABLE CHARGING CURRENT

Choice of 3 charging currents: 0.5A / 1A / 2A.
By adjusting the charging current, we can extend the life of the cells. You can charge 4 cells 32650 / D simultaneously.
Charging current that can be selected for various configurations:
• CH1 & CH4: 0.5A / 1A / 2A
• CH2 & CH3: 0.5A / 1A

TEST MODE: charging - discharging - charging

A thorough test of the true capacity (highest discharge value) of the battery.
Thanks to the test mode, you will find out if your battery capacity is as described and in what condition the cell is.

SMART MEASUREMENT

Personal battery doctor
• The Dragon charger can accurately measure the voltage and internal resistance of a battery, just like a multimeter.
• If you use batteries in packages, it is best to match cells with similar resistance.

BUILT-IN MEMORY

Check and compare measurement results at any time.
• Thanks to the built-in memory, the Dragon charger automatically saves the results after discharge and charging in TEST mode.
• Memory allows you to save up to 64 results that you can check at any time.

USB OUTPUT

Charge your phone and other portable devices with the right electricity.
• The Dragon charger allows you to charge devices via the 5V / 2.4A USB port - the high charging current will meet the most power-consuming devices.
• The batteries in the charger can be used as a power source for the USB (power bank) socket.

POWER MANAGEMENT

Batteries, packages and devices connected to USB are charged in parallel.
• If the charger is connected to the power supply, all batteries and devices connected to the charger are charged simultaneously.
• If the charger is not connected to the power supply, the charger uses cells installed in the chambers, switching to power bank mode.

HIGH QUALITY LCD DISPLAY

The LCD display shows all relevant information.
• Charging current
• Battery and packet status
• Percentage charge status
• Battery type and channel
• Battery voltage
• Battery resistances
• Charging / test / refresh mode selected
• 3s balancer / USB output status
• Beeper status

LED DIODES

Tri-color LEDs indicate battery status.
• Red LED: cell recognition / activation / charging.
• Blue LED: discharge / test mode / refresh / USB output.
• Green LED: standby mode / charging completed / reverse polarity.

The Xtar VP4 plus DRAGON charger has the function of reactivating deeply discharged cells and 0V cells. Many chargers on the market are not able to charge such batteries. Here, the Xtar VP4 plus DRAGON charger comes in handy , which in many cases allows you to 'save' such cells. Just insert a deeply discharged battery into the VP4 plus DRAGON charger, just like 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 may not be reactivated. 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 VP4 plus DRAGON charger, Xtar went a step further from the competition by solving this problem in a simple way: power supply from an external power supply was used. As a result, the temperature of the battery charged in VP4 plus DRAGON will increase by a maximum of 15 degrees.