Nitecore UM4 USB Quadro Slot Battery Charger for AA, AAA, AAAA, 18650, 26500

Availability: 4 In Stock
SKU: NIC0031

Input: DC 5V/2A 9V/2A, 18W (MAX)
Output voltage: 4.35V±1% / 4.2V±1% / 3.7V±1% / 1.48V±1%
Output current:

  • QC Mode: 1,500mA*1 (MAX), 1,500mA*2 (MAX), 750mA*4 (MAX)
  • Standard Mode: 1,500mA*1 (MAX), 1,000mA*2 (MAX), 500mA*4 (MAX)

Compatible with:


10440, 14500, 14650, 16500, 16340(RCR123), 16650,
17350, 17500, 17650, 17670, 17700, 18350, 18490,
18500, 18650, 18700, 20700, 21700, 22500, 22650,
25500, 26500, 26650, 26700

Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D


  • Total max output of 3000 mA with a single slot max output of 1500 mA
  • LCD display with real-time charging information
  • USB charging port
  • 2 Hours to charge 80% of a 3500mA battery
  • Specially optimised for IMR batteries (it will monitor the entire charging process to ensure cut-off voltage is always within safe limits)
  • Automatically select between 3 charging modes (CC, CV and -dV/dt) according to the battery type and capacity
  • Long press the C button to manually enter charging setting mode, voltage selection: 3.7v, 4.2v, 4.3v and charging current 100mA-1500mA
  • It takes various power sources like USB adapters, power banks and solar panels.
  • Over-discharged IMR battery restoration (long press the V button to enter the restoration mode)
  • Over-discharged Li-ion battery activation (it shows EE EE when an over-discharged battery detected)
  • Auto energy saving mode - the LCD screen will go dim after 10 mins of no-action
  • Anti-short circuiting and reverse polarity protection
We dispatch your order on the same day if payment received before order cut-off time, otherwise we will dispatch it the next working day. However for heavy and over-sized items, order cut-off time might be earlier as we may have to use a courier like UPS.

UK Domestic:

  • Free Standard Delivery on all orders
  • Next Day Delivery - £5.99 per order

EU Countries:

Postage may vary depends on the destination country.

  • RoyalMail Airmail Priority - £1.95 per order
  • International Tracked - £10.95 per order
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