Nitecore UI1 Charger

The Nitecore UI1 is a compact, single-slot portable USB charger for Li-ion and IMR batteries that features intelligent charging with a maximum output of 800mA and automatic termination upon completion. Key features include USB input, a battery level indicator, and multiple safety protections like reverse polarity, anti-short circuit, and thermal control. It is designed for travel, weighing only about 1.43 ounces, and is compatible with various power sources, including power banks and solar panels.

Specifications
Input: DC 5V/1A
Output: 4.2V ± 1%
Max Output Current: 800mA
Battery Compatibility: Li-ion and IMR (various sizes, including 18650, 21700, 18350, 20700)
Input Port: Micro-USB
Dimensions: 4.82″ L x 1.15″ W x 1.26″ H (approximately 12.3 cm x 2.9 cm x 3.2 cm)
Weight: 1.43 ounces (approximately 40.5 grams)

Key Features
Intelligent Charging: Automatically adopts optimal charging modes (CC/CV) and terminates charging when the battery is full.
USB Input Compatibility: Can be powered by a variety of USB sources, including power banks, adapters, and 5V solar panels.
Battery Level Indicator: Uses three LEDs to display the real-time charging progress.

Safety Protections:
Reverse Polarity Protection: Prevents damage from batteries inserted backward.
Anti-Short Circuit Protection: Protects against short-circuited batteries.
Thermal Protection: Intelligently regulates charging current if the charger or environment gets too hot.
Over-Discharged Battery Activation: Can activate and begin charging over-discharged batteries with protection circuits.
Compact and Portable: Lightweight and small, making it ideal for travel.
Durable Construction: Made from fire-retardant PC materials.

Operating Instructions
Connect to the power source: Connect the UI1 to an external power source (a USB adapter, a computer or other USB charging devices) via the USB charging cable. After connecting to the power source, the indicators will glow for approx. 1 second before they go out.