---
product_id: 784056762
title: "UMLIFE 10 Pack Ultra-Mini USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input"
brand: "umlife"
price: "€ 23.49"
currency: EUR
in_stock: true
reviews_count: 5
category: "Umlife"
url: https://www.desertcart.pt/products/784056762-umlife-10-pack-ultra-mini-usb-type-c-3-7v
store_origin: PT
region: Portugal
---

# 5V USB-C PD input 1A high-current charge Multi-layer protection circuit UMLIFE 10 Pack Ultra-Mini USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input

**Brand:** umlife
**Price:** € 23.49
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your projects with precision and style—charge smarter, not harder!

## Quick Answers

- **What is this?** UMLIFE 10 Pack Ultra-Mini USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input by umlife
- **How much does it cost?** € 23.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/784056762-umlife-10-pack-ultra-mini-usb-type-c-3-7v)

## Best For

- umlife enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Ultra-mini 14×18×5mm board fits anywhere, perfect for sleek, space-conscious projects.
- • **Smart Safety First:** Built-in over-current, over-voltage, and under-voltage protection keeps your batteries and devices safe.
- • **Versatile 10-Pack Value:** Stock up with 10 boards, ideal for multiple projects or bulk replacements—never run out of power solutions.
- • **Intuitive LED Indicators:** Visual charge status at a glance—know exactly when your battery is ready to go.
- • **Seamless USB-C Integration:** Supports modern PD fast charging heads to minimize cable clutter and future-proof your setup.

## Overview

The UMLIFE 10 Pack Ultra-Mini USB Type C Lithium Battery Charger Boards deliver a compact, efficient 1A charging solution for 3.7V lithium batteries. Featuring a 5V USB-C PD input, integrated multi-layer protection circuits, and LED charge indicators, these modules ensure safe, fast, and convenient charging. Perfect for tech-savvy professionals upgrading their battery-powered devices with modern USB-C compatibility and reliable performance.

## Description

Product Features:Small sizeSupport Type-C interface power supply, compatible with most PD fast charging heads1A high current linear chargingWith protection board function Input voltage range: 5~6VOutput voltage: 4.2VCharging current: 1AFeatures:When the charging current drops to 100mA after reaching the final float voltage, the charging cycle will be automatically terminated.When the battery voltage drops below 4.05V (roughly corresponding to 80% to 90% of the battery capacity), the charging cycle restarts.When the battery voltage is lower than 2.9V, the battery will be precharged with a current of 100mA.With protection board, over voltage protection, over discharge protection, over current protection. Over-discharge protection value: 2.4V; over-current protection value: 4A.You need to connect the power supply to activate the protection board for the first use.Board size: 14×18×5mm (Type-C port female seat protrudes about 1.5mm)Package： 10PCS

Review: Simple straightforward usb C charger for 1s or 18650 - Used this to revive a flashlight which had a single 18650 battery inside for light. When the charger died I thought it was done for and would need to be replaced, but then I found these. They work terrific for charging 1s and similar voltage devices. Like any charging device like these I would strongly advise you don't use this like a pass through to keep a item charged While still actively using it. As they can get hot. I usually stick a mini heatsink on devices like this but since it's for a single flashlight I charge once every other month it is fine and doesn't get so hot it burns out. These are ideal for charging a single battery at a time. If you have multiple batteries or the battery in question has a large capacity definely look into a heatsink or it can overheat with extended use. And I wouldn't advise you use this to keep power going on some project actively in use for hours or again, heat can cause it to burn out or become a problem. I've wired similar devices in parallel so one usb connection powered three of these chargers at the same time to charge three cells (one 18650 per charger) but you have to make sure your usb power brick can handle the load if you're going to do that!
Review: I like...(technical details in review) - Excellent size, easy to use, definitely seems a great value, and nice build quality. I dig the USB-C power input port, as I want to migrate away from as many of the older USB styles as possible to minimize the variety of cables I need to keep around. Details I observed: The "Battery+" and "Output+" terminals are electrically bonded together. The "Output-" and "Battery-" terminals are electrically isolated. The unit's output is 4.2V DC when plugged into a USB-C power supply, and will drop to the lipo cell's voltage when unplugged from USB-C power supply. It does not have an onboard voltage boost circuit onboard, so if your project demands a solid 5V output, plan accordingly to add your own separate voltage booster to achieve 5V output - not a big deal, but I figured that may be noteworthy to someone. YES, it can indeed act as an Uninterruptable Power Supply for devices running off 4.2V DC or less. If you include a 5V boost circuit on the output, it would likely be perfect as a USB UPS device (think: powering a Raspberry Pi when the main power is lost). I'll be using one of these to convert a low-current smart scale I bought many years ago, which runs on 3 AAA batteries, to being USB rechargeable, using with a lipo cell I recovered from a disposable ... ahem, "product." The rest will go into my parts kit, for future conversion projects. I'm happy with this product.

## Features

- Input voltage range: 5~6V； over-current, over-voltage, and under-voltage protection
- Output voltage: 4.2V
- An ultra-small, 1A charging board for 3.7V lithium batteries with USB Type-C power input and LED charge indicators
- Support Type-C interface power supply, compatible with most PD fast charging heads
- The input terminal has a Type-c USB female socket, which can be directly used as an input to charge the lithium battery with a mobile phone charger.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BRXYZTWN |
| Amperage | 1 Amps |
| Brand | UMLIFE |
| Color | 10PCS Type C USB |
| Colour | 10PCS Type C USB |
| Compatible Devices | Devices with USB Type-C port and PD fast charging support |
| Connector Type Used on Cable | USB Type-C |
| Current Rating | 1 Amps |
| Customer Reviews | 4.6 out of 5 stars 85 Reviews |
| Input Voltage | 6 Volts |
| Input voltage | 6 Volts |
| Item Dimensions D x W x H | 5D x 18W x 5H millimeters |
| Manufacturer | UMLIFE |
| Number of Ports | 1 |
| Output Voltage | 5 Volts |
| Output voltage | 5 Volts |
| Product dimensions | 5D x 18W x 5H millimeters |
| Specification Met | UL, FCC, CE |
| Specification met | UL, FCC, CE |
| UPC | 701715547391 |
| Unit Count | 10.0 Count |

## Product Details

- **Brand:** UMLIFE
- **Colour:** 10PCS Type C USB
- **Output voltage:** 5 Volts
- **Product dimensions:** 5D x 18W x 5H millimeters
- **Specification met:** UL, FCC, CE

## Images

![UMLIFE 10 Pack Ultra-Mini USB Type C 3.7V Lithium Battery Charger Board 4.2V Charging Module with Protection Circuit and LED Charge Indicators 5V USB-C Input - Image 1](https://m.media-amazon.com/images/I/71+GnNciN5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple straightforward usb C charger for 1s or 18650
*by I***U on 10 July 2026*

Used this to revive a flashlight which had a single 18650 battery inside for light. When the charger died I thought it was done for and would need to be replaced, but then I found these. They work terrific for charging 1s and similar voltage devices. Like any charging device like these I would strongly advise you don't use this like a pass through to keep a item charged While still actively using it. As they can get hot. I usually stick a mini heatsink on devices like this but since it's for a single flashlight I charge once every other month it is fine and doesn't get so hot it burns out. These are ideal for charging a single battery at a time. If you have multiple batteries or the battery in question has a large capacity definely look into a heatsink or it can overheat with extended use. And I wouldn't advise you use this to keep power going on some project actively in use for hours or again, heat can cause it to burn out or become a problem. I've wired similar devices in parallel so one usb connection powered three of these chargers at the same time to charge three cells (one 18650 per charger) but you have to make sure your usb power brick can handle the load if you're going to do that!

### ⭐⭐⭐⭐⭐ I like...(technical details in review)
*by A***C on 21 August 2025*

Excellent size, easy to use, definitely seems a great value, and nice build quality. I dig the USB-C power input port, as I want to migrate away from as many of the older USB styles as possible to minimize the variety of cables I need to keep around. Details I observed: The "Battery+" and "Output+" terminals are electrically bonded together. The "Output-" and "Battery-" terminals are electrically isolated. The unit's output is 4.2V DC when plugged into a USB-C power supply, and will drop to the lipo cell's voltage when unplugged from USB-C power supply. It does not have an onboard voltage boost circuit onboard, so if your project demands a solid 5V output, plan accordingly to add your own separate voltage booster to achieve 5V output - not a big deal, but I figured that may be noteworthy to someone. YES, it can indeed act as an Uninterruptable Power Supply for devices running off 4.2V DC or less. If you include a 5V boost circuit on the output, it would likely be perfect as a USB UPS device (think: powering a Raspberry Pi when the main power is lost). I'll be using one of these to convert a low-current smart scale I bought many years ago, which runs on 3 AAA batteries, to being USB rechargeable, using with a lipo cell I recovered from a disposable ... ahem, "product." The rest will go into my parts kit, for future conversion projects. I'm happy with this product.

### ⭐⭐⭐⭐⭐ Wow, these are well worth it!
*by N***K on 8 May 2025*

For so long I have been making my own charger for 3.7v Liop batteries, and while it works well, it only has a single light indicator the goes out on charged. It allows charging if there at a time, but plugged in the wrong order for just one or two, it starts to fry itself.. These here show red or green depending on charged it not, they allow two batteries hooked up and have a input terminal for things like, what else but, 5v solar paneling! Plus easy convenient Type-C porting. These things are a no brainer. The effeciency of the solar panal use is like non I ever did get able to work, when developing solar circuits myself. In short, if a battery is at zero charge, I have yet to find a way to recharge when the application is also wanting to up and running already, I'm not so advanced These are a charm.

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-24*