NITECORE UMS4 Intelligent QC 4-Slot Battery Charger | Fast Charging for Li-Ion, LiFePO4, NiMH, NiCd

Overview

Meet the NITECORE UMS4, an intelligent four-slot charger designed to handle a variety of cell chemistries with a QC input. It delivers a total max output of 4,000 mA and up to 3,000 mA per slot, enabling four batteries to be charged at once while each slot can be managed independently. In real-world use, a typical 3,500 mAh pack can reach about 80% in roughly 55 minutes under optimal conditions. The UMS4 supports 3.6V/3.7V Li-ion, 3.8V Li-ion, 1.2V Ni-MH/Ni-Cd, and 3.2V LiFePO4 batteries, making it a versatile companion for varied gear and workflows.

What makes it smart

The UMS4 features a crisp LCD that presents live battery information to help you monitor health and progress at a glance. It automatically detects the power level and selects the appropriate voltage and charging mode, while offering manual tweaks for specialized charging needs. Three charging modes CC, CV, and -dV/dt are available, with an automatic power-management routine that adapts to each battery’s status.

• Real-time readings including Battery Health, Internal Resistance, Charging Current, Battery Voltage, Charged Volume, and Charging Time.
• Automatic detection of power level and automatic selection of voltage and charging mode for convenience.
• Manual parameter adjustments to tailor charging profiles for different batteries or projects.

Safety, reliability, and battery life

A dedicated IMR charging program continuously monitors the process and ensures the cut-off voltage stays within safe limits to help extend battery life. The UMS4 is equipped with multiple safeguards such as automatic internal resistance detection, anti-short circuit protection, reverse polarity protection, overtime charging protection, and features to reactivate over-discharged Li-ion or IMR batteries. Built with a durable fire-retardant PC housing and a temperature regulation system, it is designed to maintain stable performance during longer sessions.

• Automatic internal resistance checks and short-circuit safeguards for safe operation.
• Reverse polarity protection and overtime charging protection to prevent accidental damage.
• Temperature regulation helps maintain stable charging conditions and device longevity.

Power, versatility, and everyday use

The USB-C input expands where you can power the UMS4—from portable power banks to solar panels and USB adapters—giving you flexibility in the field, at the studio, or during travel. Independent slot control means you can manage different battery chemistries side by side, streamlining setups for cameras, flash units, radios, or other gear. While you gain speed and convenience, the system remains focused on safe, controlled charging that respects each battery’s needs.