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Home Nitecore Intellicharger UM20 LCD Li-ion Battery Charger

Nitecore Intellicharger UM20 LCD Li-ion Battery Charger

The Nitecore UM20 is a universal smart charger compatible with almost all cylindrical rechargeable batteries, you don't need to have different types of chargers anymore. 2 plug types available.

  • Product No: 115589460
  • SKU No: 1155894600010013
  • Brand: Nitecore
  • Unit: pc
  • Point: 16.8
  • Net Weight: 127.0(g)
Market price: US$21.88
Price: US$16.80 View in list mode
Average rating :

( Reviews 7 | Write a review)

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Attention: Distributors / Wholesalers may have some risks to sell Nitecore products in Germany from exclusive distributor.

Intellicharger UM20

Product Introduction

The Nitecore UM20 is a universal smart charger compatible with almost all cylindrical rechargeable batteries, thus eliminating the need to own several chargers. The UM20 automatically detects Li-ion, Ni-MH and Ni-Cd batteries, and through manual selection is also capable of charging LiFePO4 batteries.

Attention: Distributors / Wholesalers may have some risks to sell Nitecore products in Germany from exclusive distributor.


Input voltage:  Micro USB DC 5V
Output voltage:  4.2V ±1% / 5V
Output current:  1000mA / 500mA
Compatible with:
Li-ion / IMR:  18650, 18490, 18350, 17670, 17500, 16340(RCR123), 14500, 10440
Dimensions:  100mm× 56mm×35mm


This product comes with

  • 1x Nitecore UM20 Charger
  • 1 x USB Cable

Simple packing. Customary packing from the factory, the packing is subject to change without notice.

2 plug types available. Integrated digital LCD screen. 2 side buttons: MODE and SLOT. Intellligent circurity. Global insurance.


1. Capable of charging 2 battery simultaneously

2. Compatible with and identifies Li-ion (26650, 22650, 18650, 17670, 18490, 17500, 18350, 16340(RCR123), 14500, 10440), Ni-MH and Ni-Cd (AA, AAA, AAAA, C) rechargeable batteries


3. Optimized charging design for IMR batteries

4. Integrated LCD panel clearly displays charging parameters and progress

5. Two conveniently located side buttons allow easy selection of specific battery types and charging parameters

6. Intelligent circuitry detects the battery type and status before entering automatic charge mode (CC, CV, dV/dt)

7.  Automatically detects battery power status and selects the appropriate voltage and charge mode (with the exception of LiFePO4 batteries which require manual selection)

8.  Compatible with LiFePO4 batteries

9. Compatible with small capacity batteries

10. Automatically stops charging when complete

11. Features over-charge prevention to protect batteries

12. Features temperature monitoring to prevent overheating

13. Made from durable ABS (fire retardant / flame resistant)

14. Features reverse polarity protection

15.  Designed for optimal heat dissipation

16. Certified by RoHS, CE, FCC and CEC

1. Plug one end of the power cord or car charging adapter. Plug the other end of the cord into an applicable outlet. The LCD display and all battery indicator bars will illuminate as the charger runs a quick self-test. When test is complete, the name of the product will appear on the screen, the bars will dim and the charger will enter into stand-by mode. If no batteries are detected within 1 minute, the charger will automatically enter Eco Mode (the LCD screen will turn off). When a battery is installed while in Eco Mode, simply press any button to activate the LCD screen.

2. The UM20 features two charging slots,each of which charges and monitors a battery independently. When inserting a battery, ensure the positive and negative ends correspond with the positive (+) and negative(-) symbols on the charger. Incorrect installation will result in failure to initiate the charging process.

Note: The UM20 is capable of charging 3.7v Li-ion rechargeable cells, 1.2v, Ni-MH/Ni-Cd rechargeable batteries and 3.2v LiFePO4 batteries. See above for description of battery sizes.

3.When a battery is first inserted the UM20 will run a short test causing the battery indicator bars to illuminate in sequence from the bottom to the top. When the test is complete, the UM20 will enter tint charging mode. If any unusual circumstances have been detected, e.g. a backward battery installation, the battery indicator bars will blink rapidly and “Err” will be presented on the screen to urge an immediate removal of the battery.

4. While in charging mode, the battery indicator bars will blink rhythmically to indicate the on-going charging process. The battery’s power status and charging process is indicated by the number of bars that illuminate steadily. The LCD display will also display battery voltage, followed by charging current and elapsed charging time in sequence. Pressing the side “MODE” button will cycle through there charging parameters. To view the charging progress of a different charging slot, press the side “SLOT” button to select a desired slot. When charging is complete, all five battery indicator bars will illuminate steadily and “Chg. Finish ” will appear on the LCD display.


1. The UM20 is compatible with batteries of varying sizes, therefore when charging certain batteries(such as 26650 and AAA),manual adjustment of the battery’s position within the slot is recommended, as to ensure solid contacts is made between both sides of the battery and the charging slot's metal contact points.

2. The UM20 is restricted to charging Li-ion, Ni-MH and Ni-Cd rechargeable batteries only. Never use the i2 for other types of batteries as this could result in battery explosion, cracking or leaking, causing property damage and/or personal injury.

3. The UM20 should only be used indoors or inside a motor vehicle. Do not expose it to water, high humidity, low or high ambient temperatures.

4. Do not disassemble or modify the charger.

5. Children under the age of 18 should be supervised by an adult when using the UM20.

6. The UM20's safe operating temperature is between 0℃--40℃.

7. Do not use or store the charger near open flames, direct sunlight, heating devices or other high-temperature environments.

Please check Guarantee Policy.

Guarantee period: 3 months

Average Rating:4.8
Product Quality:4.8
Shipping Time:4.8
Latest Customer Reviews(7)
  • qbik
    15-08-26 09:19

    Отличное устройство, с возможностью одновременной зарядки двух батарей и дополнительного еще какого нибудь устройства например телефона. Есть индекация заряда и подключеного устройства, из хотелок можно было бы что бы показывался вольтаж батареи. Покупкой доволен.

    Product Quality
    Shipping Time
  • joyet
    15-06-06 15:03

    I already have D4 charger and I purchased this UM20 charger as a spare charger that I can keep at work. It was very affordable. It was shipped the same day as I ordered it. I'm enjoying shopping with here.

    Product Quality
    Shipping Time
  • david77
    15-05-08 00:04

    Not my first order here. UM20 is a good charger. It is compatible with both types of batteries I needed. I also grabbed some coils and liquids here. Order came in good shape as usual. Also very cheap price. Thank heavengifts.

    Product Quality
    Shipping Time
  • eugui2 
    15-01-26 05:39

    Ordered this Nitecore charger as a beginning vapor. A very easy transaction and product arrived in great shape. Thanks. Will order from you again!

    Product Quality
    Shipping Time
  • 5150sick
    15-01-01 02:56

    it is what it is. Nitecore UM20 LCD charger, works great with my sony and panasonic 18650 batteries. Order came pretty quick.

    Product Quality
    Shipping Time
  • vivek 
    14-12-31 19:06

    Bought my Nitecore Intellicharger UM20 LCD Charger with some 18650 batteries. Great charger, works like a charm, and does what I need. Now I'm enjoying my subox. Cool!

    Product Quality
    Shipping Time
  • many12 
    14-10-25 12:24

    I like this Nitecore UM20 LCD charger. Excellent performance in charging my 18650 and 18350 batteries. The site has so many cool vaping devices here. Definitely will buy again.

    Product Quality
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Latest Questions & Answers (See All Q&A)
Q Non-registered buyer

Only the left side of the UM20 charger is charging? I was under the impression that 2 sides should be able to charge 2 batteries inserted simultaneously? Do I have a faulty product? Thanks.

16-04-24 17:12
A Administrator 

Hi, it can charge 2 batteries inserted simultaneously. Please check the battery is well-covered and in normal status. If UM20 still couldn't charge it, you can make a small video to show the problem and we'll give you a solution.

16-04-25 10:10
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