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🔋 Charge smarter, stay powered longer — your pocket-sized energy ally!
The NITECORE UI1 is a compact, intelligent single-slot USB charger designed for lithium-ion batteries ranging from 10340 to 21700 sizes. It delivers up to 800mA charging current, supports multiple USB power sources including solar panels, and features automatic charging mode selection with comprehensive safety protections. Weighing only 1.43 ounces and measuring under 5 inches, it’s engineered for portability and convenience, making it an essential tool for professionals who demand reliable power on the move.
| ASIN | B083QNRRWW |
| Amperage | 0.8 Amps |
| Brand | Nitecore |
| Color | Black |
| Compatible Devices | Li-ion/IMR: 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, 26500, 26650 |
| Connector Type Used on Cable | micro-USB |
| Current Rating | 0.8 Amps |
| Customer Reviews | 4.6 out of 5 stars 443 Reviews |
| Global Trade Identification Number | 06952506467242 |
| Input Voltage | 5 Volts |
| Item Dimensions D x W x H | 1.15"D x 4.82"W x 1.26"H |
| Item Weight | 1.43 Ounces |
| Manufacturer | NITECORE |
| Mfr Part Number | UI1+ORG |
| Model Number | UI1 |
| Number of Ports | 1 |
| Output Voltage | 4.2 Volts (DC) |
| Product Dimensions | 1.15"D x 4.82"W x 1.26"H |
| Specification Met | UL, CE |
| Unit Count | 1.0 Count |
S**K
Easy to use and has a great charging meter.
Works great 👍🏼
E**.
Works Great
Works great with 18650
E**.
Battery charger
Great product.
M**G
Good travel charger
Good universal charger for travel and speedy use. Can even just keep it in the bag charging off of a battery pack. Have charge up to a 21700 so far with no problems
D**Y
Updates include USB-C and 1000mA charging
The Ul1 charger is now USB-C. - It reliably worked with both flat top 18650 and 21700 protected button top batteries. This is important as not all chargers work with these long batteries. - The rubber feet help with grip. I am able to use a heavy cord without it falling off the night stand. - Update. After using it for a bit, keep in mind that it takes hours for large batteries. They stay cooler compared to other chargers I have used, which is better for longevity and safety. - I liked it enough, that I purchased a second unit.
A**F
Nice Charger but Micro-USB
This charger is easy to use and small enough to take anywhere. Drawbacks include the micro-USB connector and its relatively cheap feel. I wish it were USB-C. Other than those issues, it has worked on a variety of rechargeable batteries.
S**D
it works; usb-c
It works well for charging a14500 battery. The 3 LEDs give an indication of the state/percentage of charge, I like that. I noticed the description and reviews mention a Micro-USB port, but mine came with a USB-C port (I’m guessing it’s a newer version).
A**R
Charges 21700 and 18650 cells with no issue.
Not much to say except that it works, and the cable it comes with is good, too.
Trustpilot
1 month ago
3 weeks ago