Battery charger XTAR MC6C multi-slot smart charger for cylindrical Li‑ion cells, 6‑bay, supports 18650/21700/AA, 5V input, black

The XTAR MC6C is a compact multi‑slot smart charger designed for cylindrical Li‑ion cells and common rechargeable household batteries. It charges up to six cells simultaneously and accepts a wide range of sizes including 18650, 21700, 14500, AA, AAA and others. The charger uses a 5 V input and includes built‑in safety features such as overload, thermal and short‑circuit protection. Its black housing and small footprint (111 × 148 × 34 mm) make it suitable for routine battery maintenance and home charging tasks.

Advantages

The charger supports multiple cell formats in the same unit, allowing flexible charging of Li‑ion and standard rechargeable batteries. Simultaneous six‑bay charging reduces overall charging time for multiple batteries. Integrated overload, thermal and short‑circuit protection improve safety during operation. The 5 V input enables convenient power from common USB power sources and power adapters.

Suitable for (tasks / use cases)

• Charging and maintaining cylindrical Li‑ion cells (for example 18650, 21700)
• Charging standard rechargeable household batteries (AA, AAA, AAAA, D)
• Simultaneous charging of multiple batteries for flashlights, vaping devices, portable electronics
• Home use where compact, USB‑powered charging is required

Key specifications

• Supported battery formats: 18650, 21700, 26650, 25500, 22500, 22650, 26700, 26500, 18700, 20700, 18500, 18490, 18350, 17670, 17650, 17500, 17350, 16650, 16500, 16340 (RCR123), 14650, 14500, 10440, AA, AAA, AAAA, D (R20)
• Number of bays: 6
• Input voltage: 5 V
• Protective features: overload protection, thermal protection, short‑circuit protection
• Dimensions (H × W × D): 34 × 111 × 148 mm
• Colour: Black

How to use

Connect the charger to a compatible 5 V USB power source or adapter. Insert batteries into the bays observing correct polarity. The unit is designed to charge up to six batteries at once; ensure that each cell type placed in the charger is supported and suitable for charging. Monitor the charging process and remove batteries when charging is complete. Avoid exposing the charger to water or high humidity.

Recommendations

Use only batteries rated for rechargeable use and compatible with the charger. Charge in a well‑ventilated, dry area and avoid contact with water. Do not leave charging batteries unattended for extended periods; follow manufacturer guidance for specific battery types.