Nitecore Battery Charger UMS4On stock

The Nitecore UMS4 is an advanced high-current fast battery charger designed to charge your batteries safely and extremely quickly. Its wide range of smart functions makes it one of the most capable and versatile chargers in the lineup.

Powered via a QC 2.0 compatible USB-C input, the UMS4 can deliver up to 3A charging current to a single battery. When charging two batteries, it supplies 2A per slot independently, and with four batteries inserted it can still provide 1A per slot, ensuring fast performance in every configuration.

Thanks to its intelligent detection system, the UMS4 automatically recognizes the connected battery type and applies the optimal charging parameters. It supports multiple chemistries including Li-ion, IMR, LiFePO4, NiMH and NiCd, so you no longer need separate chargers for different battery types.

The easy-to-read LCD display provides real-time information about charging status, current, charging time, battery voltage and charged capacity. The charger instantly analyzes each inserted battery and displays its health and internal resistance. Advanced features include activation of over-discharged IMR and Li-ion cells and the ability to manually set charging current and termination voltage.

Safety is a top priority: the UMS4 integrates multiple protection systems, including reverse polarity, short-circuit, overheating and overtime protection. The robust, flame-retardant polycarbonate (PC) housing is designed for optimal airflow and cooling, ensuring highly efficient charging in all conditions.

• Independent charging for 1, 2, 3 or 4 batteries

• USB-C input

• Compatible with Li-ion, IMR, LiFePO4, NiMH and NiCd batteries

• QC 2.0 compatible

• 0V IMR cell activation

• Recovery of over-discharged protected Li-ion cells

• Battery health check and internal resistance display

• Automatic CC–CV charging for lithium-based cells

• -dV/dt charging for NiMH and NiCd cells

• Very high charging current: up to 1×3A or 2×2A

• With 4 batteries: up to 1A per slot

• Manually adjustable charging current and end voltage

• Compatible with long, protected 21700 batteries

• Compatible with 21700i series batteries

• Reverse polarity, short-circuit and overheating protection

• Charging time monitoring with automatic shutdown if too long

• Automatic power cutoff at the end of charging

• Real-time charging feedback

• Energy-efficient, easy-to-read LCD display

• Displays charged capacity, charging time, current and battery voltage

• Durable, flame-retardant PC housing

• Nitecore UMS4 charger

• USB-A → USB-C cable

• 1-year manufacturer warranty

A QC3.0 wall adapter is recommended for maximum fast-charging performance.