Nitecore UI2 charger (Nitecore, SKU: UI2) is a compact dual-slot charger designed for Li-ion and IMR rechargeable batteries with a rated voltage of 3.6 V or 3.7 V. Two independently controlled slots allow different batteries to be charged simultaneously at up to 1,000 mA per slot. USB-C power input allows the charger to be used with a USB power adapter, power bank or 5 V solar panel, among other power sources.

Key features

• two independently controlled charging slots
• maximum charging current of 1,000 mA per slot
• ability to charge two batteries simultaneously
• automatic selection of CC or CV charging mode
• automatic charging termination when the battery is fully charged
• 100 mA low-current charging mode for batteries with a voltage below 2.9 V
• activation function for over-discharged Li-ion batteries with a protective circuit
• three LED indicators for each slot displaying charging progress
• reverse polarity, short-circuit and thermal protection
• housing made of durable, fire-retardant PC material

Set contents

• Nitecore UI2 charger
• USB power cable

Technical specifications

• manufacturer: Nitecore
• model: UI2
• type: dual-slot rechargeable battery charger
• number of slots: 2
• slot control: independent
• supported rechargeable battery types: 3.6 V / 3.7 V Li-ion and IMR
• input: DC 5 V / 2 A
• maximum input power: 10 W
• maximum charging current: 1,000 mA × 2
• low-current charging mode current: 100 mA
• output voltage: 4.2 V ± 1%
• compatible battery sizes: 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14430, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22500, 22650, 25500, 26500 and 26650
• operating temperature: –10°C–40°C
• dimensions: 125.5 × 59.5 × 32.1 mm
• weight: 79.5 g

The Nitecore UI2 enables safe and convenient charging of many popular cylindrical rechargeable batteries, while its compact dimensions make it easy to use at home and while travelling.