UM4 Four-Bay USB Battery Charger with Independent Slots, Digital LCD and QC 2.0 Input Mode

The Nitecore UM4 charges compatible rechargeable cells in four independently controlled slots. A digital LCD displays charging information, and controls let you select charging current and cutoff voltage for the supported battery type.

Key Features

• Four independently controlled charging slots.
• Digital LCD for real-time charging information.
• Selectable charging current and cutoff voltage.
• Standard USB and QC 2.0 input modes.
• Automatic charging termination, reverse-polarity and short-circuit protection.

Specifications

• Model: UM4.
• Input: 5V DC/2A or 9V DC/2A, maximum 18W.
• Standard-mode maximums: 1500mA for one slot, 1000mA per slot for two slots, or 500mA per slot for four slots.
• QC-mode maximums: 1500mA for one or two slots, or 750mA per slot for four slots.
• Compatible rechargeable lithium-ion and NiMH/NiCd cells. Sizes listed include 18650, 20700, 21700 and 26650 lithium-ion cells, and AA, AAA, AAAA, C and D NiMH/NiCd cells.
• Dimensions: 159 × 107 × 41mm.

Use and Power Requirements

Use a suitable 5V or 9V DC supply. QC charging rates require a compatible QC input supply. Match charging settings to the supported cell chemistry and observe polarity. The automatic voltage and charge-mode selection does not cover LiFePO4 or 3.8V lithium-ion cells; no automatic charging claim is made for these types.

Package Contents

• UM4 charger.
• Standard USB power cord.
• User manual.

Battery cells and a mains power adapter are not promised as included.