Charger XTAR MC4S for 18650/26650 USB Li-ION/Ni-MH 4 channels

XTAR MC4S charger for Li-ION 10440-26650 and Ni-MH/ Ni-CD batteries 4 channels USB

Professional processor charger!

XTAR MC4S is a charger that surpasses others in quality. It is lightweight, with ultra-compact size. It was designed, very solidly and pragmatically. MC4S inherits the best features of all XTAR manufacturer chargers. It can charge Li-ION 3.6/ 3.7V protected and unprotected rechargeable batteries, sizes: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, and Ni-MH/ Ni-CD 1.2V AAAA, AAA, AA, A, SC, C. It can charge the cells exactly to 4.2V and automatically stop the process, when the charging is finished. So, we no longer have to worry about whether the cells will be overcharged, which directly affects the life of the cells. It automatically selects the charging current according to the input current and the number of cells to be charged. This ensures maximum efficiency of the charger and optimally fast charging of 3 or 4 batteries. With a low weight of only 95 grams, we can take it virtually anywhere. It allows us to charge 26650 cells, without an adapter and together with the USB-C port, it is very convenient, even when traveling. It will accommodate up to two 26650 batteries (CH1 and CH4 channels) + two unprotected 21700 (CH2 and CH3 channels).
Note: 20700 and 21700 size Li-ION batteries can only be charged unprotected (up to 70mm long)!

• Updated version of the XTAR MC4 charger
• Intelligent processor control
• USB type-C power input
• Compatible with Li-ION and Ni-MH/ Ni-CD batteries
• Independent four charging channels, supporting mixed battery types
• Intelligent 0△V and - △V charging to extend cell life
• Seven protective functions for safe use
• 12-month warranty

What makes the MC4S charger stand out ?

• three-stage processor-controlled TC/CC/CV charging process
• four independent charging channels
• buffering technology to protect the batteries from sudden currents
• powered by any USB charger or from a computer USB port (2.1A recommended, charger available here)
• compact, small size and weight - easy to carry
• protections: short circuit, thermal, reverse polarity
• 0V Activation - function to reactivate deeply discharged cells

Like all high-quality lithium-ion chargers, the MC4S has both an automatic shut-off function when the batteries are fully charged and the ability to revive over-discharged batteries (0V Activation), ultimately saving money and protecting the environment. All of these features ensure hassle-free and safe charging of batteries, ensuring long-lasting use. The built-in microcontroller MCU accurately measures voltage with ±0.05V accuracy and stops the charging process when the batteries are fully charged, which is safe and recommended. The MC4S features a three-stage TC/CC/CV charging process for Li-ION cells and 0ΔV and -ΔV for Ni-MH/ Ni-CD batteries. Included with the XTAR MC4S charger, we get a USB-C cable. We can connect the charger, to any USB socket with a recommended output power of 2.1A. A suitable power adapter, available here.

An interesting and safe solution in the MC4S charger is a separately pluggable power supply. This prevents unnecessary heating of the charged cell. When the set is running, the power supply itself heats up and not the cell being charged. As a result, the temperature during charging, can rise no more than 15 degrees on the cell. This directly affects the life of the battery.

In the MC4S charger, we can also recharge the batteries, up to full. First, we put the battery into the charger and wait until its voltage drops below 4.1V. This will occur during the self-discharge process. Batteries with a voltage of 4.1V or higher are treated as charged by the charger. Charging will start when the voltage drops below 4.1V.

On the other hand, reactivating discharged cells involves inserting the cell into the charger and checking the voltage. With this function, we can check each cell in the appropriate size. When a discharged cell is detected, the charger will attempt to reactivate it. Note that exceeding the minimum voltage on the cell will limit the possibility of reactivating and saving such a battery.

Technical specifications:

• manufacturer: XTAR
• charger model: MC4S
• supported battery types: 1-4 Li-ION 3.6 - 3.7V batteries, protected and unprotected, and Ni-MH/ Ni-CD 1.2V.
• supported battery sizes: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, AAAA, AAA, AA, A, SC, C (except protected 20700/ 21700)
• maximum battery length: 70mm
• input voltage and current: 5V DC 2.1A
• power socket: USB-C
• recommended power adapter: 5V 2.1A (not included, available here)
• charging output current:
  • 4 x 0.5A
  • 2 x 1A (channel 1 and 4)
• charging method:
  • processor-controlled TC/CC/CV for Li-ION
  • processor-controlled CC with -ΔV/ 0ΔV for Ni-MH/ Ni-CD
• charging current: in CC phase 250mA or 500mA ±50mA (depending on the power source used)
• charging termination voltage: 4.2V ±0.05V
• termination current: ≤70mA
• additional functions: reactivation of deeply discharged cells
• protections: thermal, short-circuit, against reverse battery insertion
• working temperature: 0 - 40ºC
• warranty: 12 months
• dimensions: 100 x 97 x 26.5mm
• charger weight: 95g

All XTAR products are sold with a label on the package containing a unique originality code. To check the authenticity of the product, please pay attention to the sticker on the case of the device.

Please here, scratch off the layer and write down the unique 18-digit product number.

On the manufacturer's website, enter the 18-digit number into the appropriate fields, available here: http://www.xtar.cc/intro/14.html. After verification, we will know if our device is original and actually manufactured by XTAR .







The kit includes:

• MC4S charger
• USB-C cable
• User manual

User Manual
CE Certificate of Conformity with Electromagnetic EMCDirective
RoHS Hazardous Substances Quantity Directive
FCC Communications Commission Certificate

Recommended over-the-air power adapter: USB XTAR AC/5V 2.1A