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- Model: VX4
XTAR VX4SET – universal 4-slot charger with included 20W PD power adapter
XTAR VX4SET is an extremely versatile smart charger for users who want to charge different types of rechargeable batteries with one device. It supports 1.5 V Li-ion, 3.6/3.7 V Li-ion, 3.2 V LiFePO4 and 1.2 V Ni-MH batteries.
The charger features 4 independent charging channels, allowing you to charge different battery sizes and types at the same time. The set includes the charger, a USB cable and a 20W PD power adapter.
Key features
Wide battery compatibility
Charges 1.5 V Li-ion, 3.6/3.7 V Li-ion, 3.2 V LiFePO4 and 1.2 V Ni-MH batteries.
Capacity measurement
The testing function measures the actual battery capacity using the charge → discharge → recharge process.
Smart detection and current selection
The charger automatically detects the inserted battery, while for 3.6/3.7 V Li-ion and LiFePO4 batteries it allows charging current selection up to 3 A.
Reactivation of discharged cells
XTAR VX4 can attempt to reactivate deeply discharged batteries and cells with 0 V voltage, if their condition still allows recovery.
Battery compatibility
3.6/3.7 V Li-ion and 3.2 V LiFePO4
Supported sizes:
10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, 32650
1.5 V Li-ion
Supported sizes are AAA and AA. The charger also allows measurement of the actual capacity of 1.5 V Li-ion batteries.
1.2 V Ni-MH
AAA, AA, A, SC, C and D
The charger can charge 1 to 4 batteries at the same time. Thanks to 4 independent channels, different battery types and sizes can be combined, but standard 3.6/3.7 V Li-ion batteries must not be charged together with LiFePO4 batteries at the same time.
Charging and operating modes
XTAR VX4 uses microprocessor-controlled TC/CC/CV charging for Li-ion batteries and processor-controlled charging for Ni-MH batteries.
- Charge: standard smart battery charging
- Grade: capacity test using the charge → discharge → charge process
- Standard mode: for 1.5 V Li-ion, 3.6/3.7 V Li-ion and Ni-MH batteries
- LiFePO4 mode: for 3.2 V LiFePO4 batteries
Note: capacity measurement does not work with XTAR R6 / AA batteries with 2700 mAh and 3000 mAh capacity.
Power supply and package contents
To fully use the charger’s performance, a 20W PD power adapter is included. The charger can also work with weaker power adapters, but in that case charging with higher currents may be limited.
Package includes: XTAR VX4 charger, USB cable and 20W PD power adapter.
Safety and protection
- Protection against overload and short circuit
- Protection against incorrect battery polarity
- Protection against overcharging
- Charging time protection
- Detection of damaged and alkaline cells
- Soft start and intelligent battery detection
- Reactivation of deeply discharged and 0V cells
Technical specifications
- Manufacturer: XTAR
- Model / manufacturer code: VX4SET
- Supported batteries: 3.6/3.7 V Li-ion, protected 1.5 V Li-ion, LiFePO4, Ni-MH
- Number of batteries: 1–4
- Termination current for lithium cells: <150 mA
- Dimensions: 172 × 130 × 41.5 mm
- Weight: 315 g
- Warranty: 24 months
- Certificate: CE
Universal charging with power adapter included
XTAR VX4SET is an excellent choice for anyone looking for one advanced charger for different battery types, with independent channels, capacity testing and an included 20W PD power adapter.













