---
product_id: 306840633
title: "Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board 18650 Charger Module BMS PCB Protection Board for Li-ion Lithium Battery Cell with Nickel Strip"
brand: "youmile"
price: "1 kr"
currency: DKK
in_stock: false
url: https://www.desertcart.dk/products/306840633-youmile-10pcs-1s-3-7v-4a-lithium-battery-protection-board
store_origin: DK
region: Denmark
---

# 4A max continuous current 4.2V precise charging voltage 4-fold battery protection Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board 18650 Charger Module BMS PCB Protection Board for Li-ion Lithium Battery Cell with Nickel Strip

**Brand:** youmile
**Price:** 1 kr
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Power your projects with precision and protection!

## Quick Answers

- **What is this?** Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board 18650 Charger Module BMS PCB Protection Board for Li-ion Lithium Battery Cell with Nickel Strip by youmile
- **How much does it cost?** 1 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/306840633-youmile-10pcs-1s-3-7v-4a-lithium-battery-protection-board)

## Best For

- youmile enthusiasts

## Why This Product

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

## Key Features

- • **Quadruple Safety Shield:** Integrated overcharge, overdischarge, short circuit, and overcurrent protections keep your battery and devices safe.
- • **Compact & Lightweight Design:** Slim 35x4x2.2mm board weighing just 10g fits effortlessly into any DIY or professional battery project.
- • **Precision Voltage Management:** Maintains a stable 4.2V charging voltage to maximize battery lifespan and performance.
- • **Power-Packed 4A Current Control:** Handles up to 4 amps for efficient charging and discharging without compromise.
- • **Plug & Play Nickel Strip Included:** Comes with a 1-meter nickel strip for seamless battery pack assembly and enhanced conductivity.

## Overview

The Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board set offers professional-grade battery management with a max 4A current, precise 4.2V charging voltage, and comprehensive safety features including overcharge, overdischarge, short circuit, and overcurrent protection. Each compact module includes a nickel strip for easy assembly, making it ideal for DIY enthusiasts and professionals aiming to build reliable, long-lasting lithium battery packs.

## Description

Description: Overcharge detection voltage: 4.25 ± 0.05V Overcharge release voltage: 4.23 ± 0.05V Over discharge detection voltage: 2.45 ± 0.1V Upper limit continuous current: 4A Overcurrent detection current: 5A Charging voltage: 4.2V Product Size: 35 x 4 x 2.2MM IC components: DW01 + 8205A x 2  Protection: 1. Overcharge Protection 2. Overdischarge Protection 3. Short Circuit Protection 4. Overcurrent Protection.  Wiring instructions: B + : Connected to the battery positive. B-: Connected battery negative. P + : For the battery pack output input positive P- : For the battery pack output input negative  Package Included: 10 x 1S 4A 3.7V 18650 Lithium Battery Protection Board 1 x 39inch/1m 0.15x8mm Nickel Strip

## Features

- ✅Charging Voltage: 4.2V; Charging Current: 4A (MAX)
- ✅MOS transistor can control the battery charge and discharge, low standby current consumption.
- ✅Protection: Overcharge Protection, Overdischarge Protection, Short Circuit Protection, Overcurrent Protection.
- ✅Note:Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+:battery output input positive, P-:battery output input negative, Otherwise it will cause damage to the chip.After connection,it need to first charge activation, then will have the output.
- ✅Package Content:10 x 1S 4A 3.7V 18650 Lithium Battery Protection Board, 1 x 39inch/1m 0.15x8mm Nickel Strip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Youmile |
| Part number | DR-YM-510 |
| Item Weight | 10 g |
| Package Dimensions | 8.4 x 3.9 x 1.5 cm; 10 g |
| Item model number | DR-YM-510 |
| Colour | Black, Green, Silver |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Battery Cell Type | Lithium |

## Product Details

- **Brand:** Youmile
- **Colour:** Black, Green, Silver
- **Output voltage:** 4.2 Volts
- **Current rating:** 4 Amps
- **UPC:** 612840759071

## Images

![Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board 18650 Charger Module BMS PCB Protection Board for Li-ion Lithium Battery Cell with Nickel Strip - Image 1](https://m.media-amazon.com/images/I/71kBZXCViQL.jpg)
![Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board 18650 Charger Module BMS PCB Protection Board for Li-ion Lithium Battery Cell with Nickel Strip - Image 2](https://m.media-amazon.com/images/I/61ZZFa1LrWL.jpg)
![Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board 18650 Charger Module BMS PCB Protection Board for Li-ion Lithium Battery Cell with Nickel Strip - Image 3](https://m.media-amazon.com/images/I/61HPb9kVaCL.jpg)
![Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board 18650 Charger Module BMS PCB Protection Board for Li-ion Lithium Battery Cell with Nickel Strip - Image 4](https://m.media-amazon.com/images/I/51zQTCiWjiL.jpg)
![Youmile 10PCS 1S 3.7V 4A Lithium Battery Protection Board 18650 Charger Module BMS PCB Protection Board for Li-ion Lithium Battery Cell with Nickel Strip - Image 5](https://m.media-amazon.com/images/I/51cb7C8v6wL.jpg)

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**Shop now:** [https://www.desertcart.dk/products/306840633-youmile-10pcs-1s-3-7v-4a-lithium-battery-protection-board](https://www.desertcart.dk/products/306840633-youmile-10pcs-1s-3-7v-4a-lithium-battery-protection-board)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-03*