XTAR MC4S 4-slot desktop battery charger for cylindrical Li-ion 18650 and NiMH (A/AA/AAA/AAAA/C/D), 1 A output, 5 V input, black

XTAR MC4S is a compact 4‑slot desktop charger designed for cylindrical Li‑ion 18650 cells and Nickel‑Metal Hydride (NiMH) rechargeable batteries in sizes A, AA, AAA, AAAA, C and D. The charger accepts a 5 V power input and provides a 4.2 V output with up to 1 A charging current per slot, allowing up to four batteries to be charged simultaneously. The unit is intended for household use and operates within a 0–40 °C temperature range. The charger comes in a black housing with dimensions of 97 × 100 × 26.5 mm and a weight of 94 g. Batteries are not included.

Advantages

The MC4S supports both Li‑ion 18650 cells and NiMH chemistries, accepts a standard 5 V input and supplies a stable 4.2 V output with up to 1 A current, enabling convenient charging of multiple battery types. Its compact, lightweight black enclosure is suitable for desktop placement and household environments. The charger accommodates up to four cylindrical batteries at once, offering flexibility for different sizes.

Suitable for

• Charging cylindrical Li‑ion 18650 cells
• Charging NiMH rechargeable batteries in A, AA, AAA, AAAA, C and D sizes
• Household and desktop battery maintenance
• Simultaneous charging of up to four batteries

Key specifications

• Supported chemistries: Li‑ion (18650) and NiMH
• Supported sizes: A, AA, AAA, AAAA, C, D, 18650
• Number of slots: 4
• Input voltage: 5 V
• Output voltage: 4.2 V
• Maximum output current: 1 A (per slot)
• Operating temperature range: 0–40 °C
• Dimensions (W×D×H): 97 × 100 × 26.5 mm
• Weight: 94 g

How to use

Place the charger on a stable, flat surface and insert batteries into the slots observing correct polarity. Connect the charger to a suitable 5 V power source via the provided input. The charger will deliver up to 1 A to charge each battery; monitor charging progress and remove batteries when charging is complete. Do not attempt to charge batteries that are visibly damaged or leaking. Batteries are not included with the charger.

Recommendations

Do not disassemble the charger yourself. Operate the charger within the specified 0–40 °C temperature range and use it on a non‑flammable surface. Only charge compatible Li‑ion 18650 cells and NiMH batteries of the supported sizes.