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Nitecore UM2 USB Charger | 2 slots | Li-ion & Ni-MH
  • πŸ”Œ 2 independent charging slots Β· charge simultaneously
  • πŸ”‹ Li-ion, IMR, LiFePO4 & Ni-MH/Ni-Cd Β· incl. 18650, 21700, AA, AAA
  • πŸ€– Automatic detection of cell type, size & state of charge
  • πŸ“Š Real-time display (LCD) Β· current & status
  • πŸ›‘οΈ Reverse-polarity, short-circuit & overcharge protection Β· temperature monitoring
  • πŸͺ« Revival of over-discharged Li-ion cells
  • πŸ”Œ Power: USB (Micro-USB)

19.90 CHF
incl.Β 8,1% VAT , plus Shipping (Paket)
Old price: 24.90 CHF
Available immediately
Deliverydate: 12.06.2026 - 17.06.2026
Only 1 available
pcs.
Description

Nitecore Β· Charger Β· Battery charging

Nitecore UM2
2 slots Β· 2 A Β· LCD display

Empty cells and no idea of their state? The Nitecore UM2 charges Li-ion and Ni-MH cells fully automatically, shows everything on the LCD display and protects your batteries – a USB charger for flashlights, cameras & more.

πŸ”Œ
2 slots
Independent
⚑
2 A
Charge current (max.)
πŸ”‹
Li-ion Β· Ni-MH
Battery types
πŸ“Ί
LCD display
Display
πŸ€–
Auto-detect
Cell type & voltage
πŸ›‘οΈ
Safety circuits
Reverse & short circuit
πŸ”Œ
Micro-USB
Power input
πŸͺ«
Revival
Over-discharged cells
πŸ…
5 years
Nitecore

Buy the Nitecore UM2 USB Charger – intelligent charging for Li-ion and Ni-MH

The Nitecore UM2 is a USB charger with 2 independent slots that automatically detects the inserted cell and applies the right charging programme. It charges both rechargeable Li-ion round cells (for flashlights, head torches or cameras) and classic Ni-MH and Ni-Cd cells in AA and AAA – taking away the question of which charger suits which battery.

Charge current: Quick Charge via Micro-USB Β· up to 2000 mA. Usb powered Β· micro-usb input with quick charge. the Nitecore UM2 is a reliable companion at home, in the workshop or on the go.

Charging tech Β· USB & mobile

Charge anywhere via USB – the Nitecore UM2

The Nitecore UM2 is powered through a Micro-USB input, so it charges not only at the wall socket but also from a power bank, laptop or car USB. Quick Charge keeps charging times short, and the LCD shows voltage, current, capacity and internal resistance in real time. Note: this is the predecessor version with a Micro-USB port (not USB-C).

πŸ”Œ 2 slots
⚑ 2 A
πŸ“Ί LCD display

Which batteries does the Nitecore UM2 charge? – broad cell compatibility

The Nitecore UM2 is built for versatility and charges Li-ion/IMR/LiFePO4 (10440–26700, incl. 18650, 20700, 21700) plus Ni-MH/Ni-Cd in AA, AAA, AAAA, C, D. You never set voltage by hand: the charger detects chemistry and size automatically and selects charge current and termination voltage accordingly. So you charge cells from a flashlight, radio, camera, mouse or toy with a single device – each slot working independently.

Safety explained – the protection features of the Nitecore UM2

Charging should be safe. The Nitecore UM2 monitors every slot individually and offers reverse-polarity protection, short-circuit protection, overcharge protection and a timed cut-off. Temperature monitoring prevents overheating, and the flame-retardant housing adds extra safety. When a cell is full the unit stops automatically – so you can leave it running overnight without worry.

Display & operation – LCD display and independent slots

The LCD display keeps you informed about the status of the Nitecore UM2 at all times: voltage, current, charge level and, depending on the model, capacity and internal resistance are shown clearly. Because all 2 slots work independently, you can insert cells of different size, chemistry and remaining charge at the same time – the device treats each one individually and optimally.

Key features – Nitecore UM2

  • πŸ”Œ 2 independent charging slots
  • ⚑ Charge current: Quick Charge via Micro-USB Β· up to 2000 mA
  • πŸ”‹ Charges Li-ion/IMR/LiFePO4 (10440–26700, incl. 18650, 20700, 21700) plus Ni-MH/Ni-Cd in AA, AAA, AAAA, C, D
  • πŸ€– Automatic detection of cell type, size and state of charge
  • πŸ“Š LCD display for charging information
  • πŸ”Œ USB powered Β· Micro-USB input with Quick Charge
  • πŸ›‘οΈ Reverse-polarity, short-circuit and overcharge protection Β· temperature monitoring
  • πŸͺ« Revival of over-discharged Li-ion cells
  • πŸ”₯ Flame-retardant housing Β· automatic cut-off
  • πŸ… 5-year Nitecore warranty + 2-year Swiss statutory warranty

Who is it for?

The Nitecore UM2 is for anyone running several batteries – flashlight fans, photographers, outdoor and EDC users – looking for a reliable, safe USB charger. Buy now at Swiss-Sale.ch, your Swiss specialist shop for Nitecore with fast shipping.

πŸ”¦Flashlights
πŸ“·Photography
πŸ•οΈOutdoor
πŸŽ’EDC
πŸ“»Radio & hobby
🏠Household
Technical Specifications

Technical Specifications – Nitecore UM2

ModelNitecore UM2 (NC-UM2)
TypeUSB Charger
Charging slots2
Charge currentQuick Charge via Micro-USB Β· up to 2000 mA
Battery typesLi-ion/IMR/LiFePO4 (10440–26700, incl. 18650, 20700, 21700) plus Ni-MH/Ni-Cd in AA, AAA, AAAA, C, D
Power inputUSB powered Β· Micro-USB input with Quick Charge
DisplayLCD display
DetectionAutomatic (cell type, size, state of charge)
ProtectionsReverse polarity, short circuit, overcharge, timeout, temperature
HousingFlame-retardant plastic
EAN6952506492787
Manufacturer part no.NC-UM2
Warranty5-year Nitecore warranty + 2-year Swiss statutory warranty
Package Contents

Package Contents – Nitecore UM2

  • πŸ”‹ Nitecore UM2 charger
  • πŸ”Œ Micro-USB cable
  • πŸ“„ User manual
Frequently Asked Questions

Frequently Asked Questions – Nitecore UM2

Here you will find answers about the Nitecore UM2 – from battery types and charge current to safety and Swiss shipping.

Which batteries can I charge with the Nitecore UM2?
The Nitecore UM2 charges Li-ion/IMR/LiFePO4 (10440–26700, incl. 18650, 20700, 21700) plus Ni-MH/Ni-Cd in AA, AAA, AAAA, C, D. You do not set voltage by hand – the device detects type and size automatically.
How many batteries does the Nitecore UM2 charge at once?
The Nitecore UM2 has 2 independent slots. You can charge 2 cells at the same time – even in different sizes, chemistries and states of charge, as each slot is controlled separately.
How fast does the Nitecore UM2 charge?
The charge current is Quick Charge via Micro-USB Β· up to 2000 mA. How long charging takes depends on the cell's capacity and remaining charge.
How is the Nitecore UM2 powered?
The Nitecore UM2 is powered via Micro-USB and can run from a wall adapter, power bank, laptop or car USB. Note: this is the predecessor version with Micro-USB (not USB-C).
What does the Nitecore UM2 display show?
The LCD display shows voltage, charge current, charge level and, depending on the model, capacity and internal resistance of each cell.
Is charging with the Nitecore UM2 safe?
Yes. The Nitecore UM2 offers reverse-polarity protection, short-circuit protection, overcharge protection, a timed cut-off and temperature monitoring. The flame-retardant housing adds extra safety; when a cell is full the device stops automatically.
Can the Nitecore UM2 revive over-discharged batteries?
In many cases yes: the Nitecore UM2 attempts to gently reactivate over-discharged Li-ion cells before the normal charging cycle starts. Severely damaged or swollen cells should not be used further, however.
Does the Nitecore UM2 also charge ordinary AA and AAA batteries?
Yes. Besides Li-ion round cells, the Nitecore UM2 also charges rechargeable Ni-MH and Ni-Cd cells in AA and AAA – handy for remotes, mice, toys and household devices. Important: only charge rechargeable cells, never disposable batteries.
What warranty does the Nitecore UM2 have?
Nitecore provides a 5-year manufacturer warranty. In addition, a 2-year statutory warranty applies in Switzerland. Swiss-Sale.ch handles warranty cases directly in Switzerland.
How fast does Swiss-Sale.ch ship the Nitecore UM2?
Orders placed by 5:00 pm are usually dispatched the same business day. We ship with Swiss Post. Delivery within Switzerland takes 1–2 business days. Orders from CHF 100 ship free of charge.
Why buy the Nitecore UM2 at Swiss-Sale.ch?
Swiss-Sale.ch is an official Swiss dealer for Nitecore. You benefit from fast shipping within Switzerland (no customs, no waiting), personal expert advice and warranty handling directly in Switzerland.
What should I keep in mind when charging with the Nitecore UM2?
Only charge rechargeable cells and insert them with correct polarity. Use the device on a stable, non-flammable surface and do not cover it. Do not charge visibly damaged cells.
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