XTAR VX4 V2 KT 4-Bay Smart Battery Charger for Li-ion Ni-MH Ni-CD with USB-C QC3.0

Keeping multiple rechargeable batteries ready can be a hassle, especially when you need different chemistries and sizes charged quickly and safely. The XTAR VX4 V2 KT solves this by offering four independent charging slots that handle Li-ion, Ni-MH, and Ni-CD cells, from tiny AAAA to large 26650, all in one compact device. With QC3.0 fast charging via USB-C, a clear VA LCD screen, and advanced safety features, it’s the practical choice for vapers, photographers, and anyone who relies on rechargeable batteries daily.

Who is it for

This charger is ideal for users who need a versatile, reliable charging station for multiple battery types. Whether you power flashlights, cameras, toys, or vaping devices, the VX4 V2 KT keeps your batteries topped up without the clutter of multiple chargers. Its compact size and USB-C input make it perfect for home, office, or travel use.

Main features

• Four independent charging slots support Li-ion (3.6V/3.7V) and Ni-MH/Ni-CD (1.2V) batteries.
• Wide compatibility: charges 10440, 14500, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22650, 26500, 26650 Li-ion sizes, plus AAAA, AAA, AA, A, SC, C Ni-MH/Ni-CD sizes.
• QC3.0 fast charging via USB-C input (5V 3A / 9V 2A) with up to 6A total output.
• Per-slot charging current up to 3A (single Li-ion slot), 2A (two slots), 1A or 0.5A (four slots); Ni-MH/Ni-CD at 1A or 0.5A.
• VA LCD screen displays voltage, current, capacity, and internal resistance for real-time monitoring.
• Advanced charging algorithms: TC/CC/CV for Li-ion and -dV/dT for Ni-MH/Ni-CD.
• Comprehensive safety: short circuit, over-current, over-voltage, reverse polarity protection, and intelligent temperature control.
• Special functions: 0V activation and soft start for deeply discharged batteries.
• Durable ABS/PC housing with operating temperature range 0°C to 40°C.

Specifications

• Brand: XTAR
• Model: VX4 V2 KT
• MPN: 6977699220689
• EAN: 6977699220689
• Number of Charging Slots: 4
• Compatible Battery Chemistry: Li-ion, Ni-MH, Ni-CD
• Compatible Li-ion Battery Voltage: 3.6V / 3.7V
• Compatible Ni-MH/Ni-CD Battery Voltage: 1.2V
• Compatible Li-ion Battery Sizes: 10440, 14500, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22650, 26500, 26650
• Compatible Ni-MH/Ni-CD Battery Sizes: AAAA, AAA, AA, A, SC, C
• Input Power: QC3.0 (5V 3A / 9V 2A) via USB-C
• Max Total Charging Current: 6A
• Max Charging Current per Slot (Li-ion): 3A (1 slot), 2A (2 slots), 1A (4 slots), 0.5A (4 slots)
• Max Charging Current per Slot (Ni-MH/Ni-CD): 1A (4 slots), 0.5A (4 slots)
• Display Type: VA LCD Screen
• Charging Information Displayed: Voltage, Current, Capacity, Internal Resistance
• Charging Algorithm (Li-ion): TC/CC/CV
• Charging Algorithm (Ni-MH/Ni-CD): -dV/dT
• Safety Features: Short Circuit Protection, Over-Current Protection, Over-Voltage Protection, Reverse Polarity Protection, Intelligent Temperature Control
• Special Functions: 0V Activation, Soft Start
• Housing Material: ABS / PC
• Operating Temperature Range: 0°C to 40°C

Tips

For optimal performance, always match the battery size to the correct slot and ensure the polarity is correct before charging. The VX4 V2 KT automatically detects battery chemistry and selects the appropriate charging algorithm, so you can simply insert your batteries and let it do the rest. Use a QC3.0 USB-C power adapter to take full advantage of fast charging speeds.