---
product_id: 178169974
title: "UI1 Single-Slot Intelligent Lithium-ion Battery USB Charger for 18650, 18350, 20700, 21700, 16340, 14500 and More, and Organizer"
brand: "nitecore"
price: "12124 Ft"
currency: HUF
in_stock: true
reviews_count: 10
category: "Nitecore"
url: https://www.desertcart.hu/products/178169974-ui1-single-slot-intelligent-lithium-ion-battery-usb-charger-18650
store_origin: HU
region: Hungary
---

# 800mA max charging current Compact 4.82-inch portable design Supports 20+ Li-ion battery types UI1 Single-Slot Intelligent Lithium-ion Battery USB Charger for 18650, 18350, 20700, 21700, 16340, 14500 and More, and Organizer

**Brand:** nitecore
**Price:** 12124 Ft
**Availability:** ✅ In Stock

## Summary

> 🔋 Charge smarter, carry lighter, power anywhere.

## Quick Answers

- **What is this?** UI1 Single-Slot Intelligent Lithium-ion Battery USB Charger for 18650, 18350, 20700, 21700, 16340, 14500 and More, and Organizer by nitecore
- **How much does it cost?** 12124 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/178169974-ui1-single-slot-intelligent-lithium-ion-battery-usb-charger-18650)

## Best For

- nitecore enthusiasts

## Why This Product

- Trusted nitecore brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power-Packed Charging ⚡:** Delivers a robust 800mA current for rapid, efficient battery recharge.
- • **All-in-One Charger Kit 🎒:** Includes charger, USB cable, and organizer case—everything you need in one sleek package.
- • **Featherlight & Pocket-Ready 🪶:** Weighs just 1.43 ounces and fits comfortably in your hand or bag.
- • **Smart Charging Intelligence 🤖:** Automatically selects optimal charging mode to maximize battery health and safety.
- • **Universal USB Compatibility 🔌:** Works seamlessly with power banks, solar panels, and adapters for on-the-go power.

## Overview

The Nitecore UI1 is a sleek, single-slot USB lithium-ion battery charger supporting over 20 battery types including 18650 and 21700. With a max 800mA charging current, intelligent mode selection, and universal USB compatibility, it ensures fast, safe, and versatile charging. Ultra-lightweight at 1.43 ounces and compact at under 5 inches, it’s designed for professionals who demand reliable power on the move. The included cable and organizer case complete this all-in-one charging solution.

## Description

Powerful and compact, the NITECORE UI1 is a single-slot portable USB Li-ion battery charger capable of reaching a maximum charging current of 800mA and supports 18650, 18350, 20700, 21700 and various types and sizes of lithium batteries. Its power indicator provides users with real-time battery level and charging status. It also provides multiple charging safeguards to prevent reverse polarity, overcharging, and overheating. The UI1 features a micro-USB port compatible with various power sources like power banks, solar panels and USB adapters for quick and efficient charging. Weighing less than 1.43 ounces, the lightweight design of the UI1 allows you to carry this charger everywhere you go. Measuring 4.82 inches, the UI1 fits comfortably in the palm of your hand and is portable for outdoor applications.Specifications:* Input: DC 5V/1A 5W * Output Voltage: 4.2VÂ±1% * Output Current: 800mA (max) * Compatible with : 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 * Maximum Brightness: 5 * Dimensions: L-4.82"xW-1.15"xH-1.26"* Weight: 1.43oz

Review: Easy to use and has a great charging meter. - Works great 👍🏼
Review: That it works - Worked as designed

## Features

- POWERFUL CHARGER-The NITECORE UI1 reaches a single slot maximum charging current of 800mA when using 3.7V rechargeable batteries.
- USB COMPATIBLE - Compatible with multiple USB inputs including solar panels, adapters, and power reservoirs for quick and efficient charging.
- INTELLIGENT CHARGING - The UI1 is equipped with intelligent charging mode selection that automatically adopts the optimal charging modes for batteries.
- LIGHTWEIGHT AND COMPACT - Weighing 1.43 ounces and less than 5 inches in length, the lightweight and compact size of the UI1 allows you to carry it with you on the go.
- UI1 CHARGER KIT - Included in this bundle is the NITECORE UI1 21700/18650 battery charger, usb cable, and battery/cable case.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083QNRRWW |
| Customer Reviews | 4.6 4.6 out of 5 stars (434) |
| Date First Available | January 10, 2020 |
| Item Weight | 1.43 ounces |
| Item model number | UI1 |
| Manufacturer | NITECORE |
| Product Dimensions | 4.82 x 1.15 x 1.26 inches |

## Product Details

- **Brand:** Nitecore
- **Color:** Black
- **Item Weight:** 1.43 Ounces
- **Output Voltage:** 4.2 Volts (DC)
- **Product Dimensions:** 1.15"D x 4.82"W x 1.26"H

## Images

![UI1 Single-Slot Intelligent Lithium-ion Battery USB Charger for 18650, 18350, 20700, 21700, 16340, 14500 and More, and Organizer - Image 1](https://m.media-amazon.com/images/I/71jQTskuxOL.jpg)

## Questions & Answers

**Q: How does this differ from the F1? Is it intended to be an upgrade?**
A: Unlike the F1, the UI1charger would be able to charge large-sized batteries like 20700, 21700 batteries & more.

**Q: Can these charge the Nitecore 21700/5000 Inteligent battery?**
A: UI1 is compatible with 21700 batteries. 
However, we recommend charging the Nitecore i series batteries through the flashlights.

**Q: I would like the functionality of an intelligent usb single-slot quick battery charger for li-ion/ni-mh/ni-cd/imr. any ideas?**
A: If you can do without the usb and single slot; the Eastshine S2 charger has a very informative display which I would buy again. Car plug or 110v house, has two speeds, shows charge advancement, Mah, time spent, and volts. Having those updates at a glance keeps you informed. 5 stars.

**Q: Will this product charge the nl2140hp?**
A: Yes.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to use and has a great charging meter.
*by S***K on October 24, 2025*

Works great 👍🏼

### ⭐⭐⭐⭐⭐ That it works
*by G***Y on January 19, 2026*

Worked as designed

### ⭐⭐⭐⭐⭐ Nightcore products are amazing works perfect definite recommend by
*by D***. on January 25, 2026*

Nightcore single battery charger does every single battery on all my flashlights that I have from Nightcore. I have five different flashlights that uses four different batteries. Everyone charges in there perfect

## Frequently Bought Together

- Nitecore UI1 Single-Slot Intelligent Lithium-ion Battery USB Charger for 18650, 18350, 20700, 21700, 16340, 14500 and More,and LumenTac Battery Organizer
- 2X Nitecore IMR 18350 NI18350A 700mAh 3.7V Button Top Rechargeable Battery (This is NOT a Replacement for CR123A)

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**Shop now:** [https://www.desertcart.hu/products/178169974-ui1-single-slot-intelligent-lithium-ion-battery-usb-charger-18650](https://www.desertcart.hu/products/178169974-ui1-single-slot-intelligent-lithium-ion-battery-usb-charger-18650)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-12*