Nitecore UI1 Single Bay Li-ion Battery Charger

The Nitecore UI1 is a lithium-ion and IMR battery charger with a single charging bay.

It is suitable for charging 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, 22650, 25500, 26500 and 26650 lithium-ion/IMR type batteries.

The included micro USB cable plugs into the micro USB port at end of the charger, and the standard USB at the other end of the cable plugs into a USB port on a computer, power bank, 5 V solar panel, USB car charger or USB mains charger and the LED indicator will light up for 1 second to show power is being provided.

Insert a compatible battery with the polarity the correct way round to begin charging. The LED indicators will begin to steadily flash in turn to show charging progress, and once fully charged all three lights will be solid and the charger will automatically terminate the charging process. If the battery is inserted the wrong way, or the battery is short circuited (faulty) all three indicators will flash to notify you of an error.

A low charging current is available for batteries that are below 2.9 V in order to slowly being charging them to prevent damage. If a battery below 2.9 V is inserted the charged will automatically detect this and enter the low current charging mode of 100 mA. Batteries over 2.9 V will be charged in the standard charging mode with a maximum current of 1000 mA.

The UI1 can activate over-discharged lithium-ion batteries that have a protection circuit. After being insert in the charger it will detect the over-discharged battery and attempt to revive it before charging. If it is detected as damaged and unable to revive, then none of the LED indicators will illuminate and the battery should be immediately removed from the charger.

IMPORTANT NOTE: Please DO NOT charge unprotected 0 V over-discharged lithium-ion batteries as it may result in fire or even battery explosion.

Product Features

Thermal protection during charging
Reverse-polarity protection & anti-short circuit protection
Charging stops upon completion
Automatically selects between CC and CV charging modes
Over-discharged protected battery activation feature
Optimal heat dissipation design
Compatible with power banks, 5 V solar panels & USB adaptors

Input: 5 V DC / 1000 mA 5 W
Output: 4.2 V ±1%, 1000 mA max
Weight: 40.5 grams
Dimensions: 122.5 x 32 x 29.2 mm

Supplied in retail packaging and includes:
Nitecore UI1 single bay charger x 1
Micro USB charging cable x 1
Manual x 1

Safety Notes

1. Charge only rechargeable 3.6/3.7 V lithium-ion/IMR batteries.
2. Charging any other types of batteries may cause them to leak rupture or explode.
3. Do not disassemble or modify any part of the charger or use as a power source.
4. Always unplug the charger from outlet before attempting maintenance or cleaning.
5. This charger should not be used by persons without adequate training or knowledge.