Nitecore UM4 Intelligent USB Charger

The Nitecore UM4 Battery Charger has 4 Slots, with optimized IMR battery charging program, which is able to monitor the entire charging process, ensuring that the cut-off voltage is always within safe limits to extend the lifespan of the batteries. Compatible with Li-ion and NI-MH/NI-CD batteries with automatic detection. The intelligent charger with automatic detection of the battery power level and automatic selection of the appropriate voltage and charging mode from CC, CV, and -DV/DT. There is one large LCD display screen, it will show real-time charging information clearly. The UM4 charger is compatible with various mobile power sources, solar panel, and USB adapters to ensure endless power supply, multiple functions to ensure the charging safe and reliable.

• Multiple Charging Speeds
• Comfortably fits size 20700 and 21700 batteries
• Bright digital LCD display shows real-time charging information
• Built-in safety protections to prevent short-circuit, overcharging, and improperly inserted batteries

CHARGING PROGRAM SPECIALLY OPTIMIZED FOR IMR BATTERIES - UM4 incorporates an optimized IMR battery charging program, which is able to monitor the entire charging process, ensuring that the cut-off voltage is always within safe limits to extend the lifespan of the batteries.