Battery charger Nitecore UMS4 for 4 cells, 12V DC input, supports LiFePO4/Li-ion/Ni-Cd, AA AAA AAAA C D, black

The Nitecore UMS4 is a compact household charger designed to recharge up to four rechargeable cells at once. It accepts a 12V DC input and provides a regulated 4.3V output suitable for supported chemistries, making it compatible with AA, AAA, AAAA, C and D battery sizes. With a small footprint (107 × 41 × 159 mm) and a weight of approximately 0.2554 kg, the unit is intended for home use where safe, straightforward charging of common rechargeable batteries is required. The charger supports Lithium Iron Phosphate (LiFePO4), Lithium‑Ion and Nickel‑Cadmium chemistries and carries CE and FCC certification for regulatory compliance.

Advantages

The Nitecore UMS4 combines multi-chemistry compatibility with a compact design that fits on a shelf or in a drawer. Its ability to charge up to four cells simultaneously reduces charging time for multiple batteries and the fixed 4.3V output is matched to the supported battery types to ensure reliable charging. The charger’s physical dimensions and lightweight construction make it easy to store and move as needed for household use.

Suitable for

• Recharging AA and AAA rechargeable batteries used in remotes, toys, and small electronics
• Charging AAAA cells commonly found in small flashlights and medical devices
• Replenishing C and D size rechargeable batteries used in flashlights, lanterns, and portable radios
• Household users who need a single compact charger for multiple battery chemistries

Key specifications

• Input voltage: 12V DC
• Output voltage: 4.3V
• Supported chemistries: LiFePO4, Li-ion, Ni-Cd
• Supported battery sizes: AA, AAA, AAAA, C, D
• Simultaneous battery slots: up to 4 cells
• Dimensions: 107 × 41 × 159 mm
• Weight: approx. 0.2554 kg
• Product colour: Black
• Certifications: CE, FCC

How to use

Insert rechargeable cells into the charger slots observing correct polarity markings, and connect a compatible 12V DC power source to the charger input. The charger is designed for household operation: place it on a stable, non-flammable surface with adequate ventilation and avoid covering the unit while charging. Monitor the charging process as appropriate for the battery chemistry in use and disconnect batteries after charging is complete according to the battery manufacturer’s guidance.

Usage recommendations

Use the Nitecore UMS4 with batteries that are within their rated operating condition and not damaged or leaking. Prefer original or high-quality rechargeable cells from reputable manufacturers and follow the battery maker’s instructions for charge and storage. Do not expose the charger to moisture or extreme temperatures, and allow batteries to cool before reuse after heavy discharge or charging cycles.