Nitecore UMS2 battery charger Household battery DC Lithium-Ion Nickel-Cadmium

The Nitecore UMS2 battery charger is a compact household charger compatible with common rechargeable chemistries including Lithium‑Ion (Li‑ion) and Nickel‑Cadmium (Ni‑Cd). Designed for everyday home use, the unit accepts a 9V input and provides an output voltage of 4.3V. Its two‑slot configuration lets you charge up to two cells simultaneously, and the black finish and lightweight construction make it easy to store or carry when needed. CE and FCC certifications indicate conformity with relevant safety and electromagnetic standards.

Advantages

The charger supports multiple cylindrical sizes—AA, AAA, AAAA, C and D—covering most household rechargeable batteries. With two charging bays you can recharge two cells at once, reducing downtime for frequently used devices. The compact footprint and low weight simplify placement on a shelf or in a drawer, while certification to CE and FCC standards provides verified safety and electromagnetic compatibility.

Suitable for

• Recharging AA and AAA batteries used in remote controls, toys and wireless devices
• Charging AAAA batteries for small electronics and penlights
• Refilling C and D cells for flashlights, radios and portable appliances
• Charging compatible rechargeable lithium‑ion and nickel‑cadmium cells for general household use

Key specifications

• Supported chemistries: Lithium‑Ion (Li‑ion) and Nickel‑Cadmium (Ni‑Cd)
• Supported battery sizes: AA, AAA, AAAA, C, D
• Number of simultaneous batteries: 2
• Input voltage: 9 V
• Output voltage: 4.3 V
• Product colour: Black
• Weight: 0.1577 kg
• Certifications: CE, FCC

How to use

Insert rechargeable cells into the charger slots according to polarity markings and connect the charger to a compatible 9 V power source. The unit is designed for household operation: monitor charging progress according to the indicator lights or the behavior described in the manufacturer instructions. Remove batteries once they are fully charged and allow them to cool briefly before use. For mixed‑size charging, ensure each cell sits securely in its slot and is making proper contact before powering the unit.