XTAR VX4 V2 Smart Battery Charger & Analyzer — 4‑Slot USB‑C, LCD, 0V Activation & Capacity Grading

The VX4 V2 brings advanced charging intelligence to your desktop: automatic chemistry recognition, 0V activation for deeply discharged cells, and a grading mode that measures real capacity. Designed for hobbyists, photographers, and gear-heavy users, this compact unit replaces multiple chargers by supporting Ni‑MH/Ni‑Cd, LiFePO4, and common Li‑ion formats while displaying voltage, current, and elapsed time on a crisp screen.

How does the VX4 V2 identify and protect different battery types?

The charger automatically detects battery chemistry and adjusts charging parameters to match each cell. Multiple safety layers — including reverse polarity protection, temperature monitoring, and overcharge prevention — help keep both batteries and devices safe during charge cycles.

• Auto-recognition for 1.2V Ni‑MH/Ni‑Cd, 1.5V lithium, 3.2V LiFePO4, and 3.6/3.7V Li‑ion
• Reverse polarity and overcharge protection
• Temperature-controlled charging to avoid overheating
• 0V activation to revive deeply discharged cells

What information does the LCD show and why is it useful?

The large LCD provides real-time readouts of current, cell voltage, charging mode, and elapsed time so you can monitor progress at a glance. That visibility helps you spot weak or imbalanced batteries and group strong cells for high-drain uses.

• Per-slot current and voltage display
• Elapsed time to track charge duration and diagnose slow cells
• Mode and status icons for charge, discharge, and grading cycles

How does the capacity testing and grading mode work?

Grading mode uses controlled discharge and recharge cycles to measure a battery’s true capacity rather than relying on estimated figures. This helps you identify worn-out cells that no longer hold rated capacity and prevents pairing weak batteries with high-demand equipment.

• Continuous discharge-charge testing to calculate mAh capacity
• Accurate grading for sorting and matching cells
• Useful for maintaining batteries for cameras, RC, and flash units

What practical convenience features does the VX4 V2 offer?

The unit supports dynamic current allocation and can deliver up to 2A to a single slot for faster charging when needed. It uses a modern USB Type‑C input for simple power sourcing, and its compact layout fits into a workbench, travel bag, or charging station with ease.

• Up to 2A fast charging to a single bay with intelligent distribution
• USB Type‑C power input for versatile charging options
• Compact footprint and clear slot labeling for organized charging

Who is this for: the XTAR VX4 V2 suits photographers, hobby RC pilots, outdoor gear users, and anyone who manages mixed battery types and needs reliable testing. If you rotate many cells, want clear diagnostics and safer charging, or need to recover over-discharged batteries, this charger gives the controls and readouts to keep your kit powered and predictable.

• Package contents: XTAR VX4 V2 charger, C‑to‑C cable, adapter, manual.
• Note: batteries are not included.