---
product_id: 551054508
title: "3PCS 18650 Lithium Battery Multi-Cell 2S 3S 4S Type-C to 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V （2S-4A）"
brand: "dweii"
price: "R$198"
currency: BRL
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.br/products/551054508-3pcs-18650-lithium-battery-multi-cell-2s-3s-4s-type
store_origin: BR
region: Brazil
---

# Up to 16.8V step-up boost Supports 2S, 3S, 4S Li-Ion/LiPo cells Type-C 5V input with 4A max current 3PCS 18650 Lithium Battery Multi-Cell 2S 3S 4S Type-C to 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V （2S-4A）

**Brand:** dweii
**Price:** R$198
**Availability:** ✅ In Stock

## Summary

> 🔋 Boost your battery game with smart, safe, and speedy charging!

## Quick Answers

- **What is this?** 3PCS 18650 Lithium Battery Multi-Cell 2S 3S 4S Type-C to 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V （2S-4A） by dweii
- **How much does it cost?** R$198 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/551054508-3pcs-18650-lithium-battery-multi-cell-2s-3s-4s-type)

## Best For

- dweii enthusiasts

## Why This Product

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

## Key Features

- • **Smart LED Indicators:** Clear 'CR' charging and 'OK' full-charge status LEDs keep you informed at a glance
- • **Universal Type-C Input:** Fast and convenient 5V Type-C charging with up to 4A current for rapid power delivery
- • **Compact & Rugged Design:** Lightweight 5g module fits anywhere and operates reliably from -40℃ to +85℃
- • **Powerful Multi-Cell Boost:** Seamlessly steps up voltage to 8.4V, 12.6V, or 16.8V for versatile battery packs
- • **Advanced Battery Protection:** Built-in safeguards against overvoltage, undervoltage, and short circuits for peace of mind

## Overview

This 3PCS 18650 Lithium Battery Multi-Cell Charger supports 2S, 3S, and 4S Li-Ion/LiPo packs, stepping up input from a Type-C 5V source to deliver precise charging voltages of 8.4V, 12.6V, or 16.8V. Featuring up to 4A input current, advanced overvoltage and short circuit protection, and intuitive LED indicators, it ensures safe, efficient charging for a wide range of portable electronics. Its compact 39x18x6.3mm size and wide operating temperature range make it ideal for professionals demanding reliable power management on the go.

## Description

Multi-Cell 2S 3S 4S Type-C To 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V 18650 Lithium BatteryDescription:1: Diverse choices, customers can choose what they need according to different needs2: Widely used3: High safety performance4: Simple and easy to understand and operate5: Battery overvoltage protectionParameter:2-Cell(2S) 8.4V Version:Input voltage : DC 3-6V(Recommend DC 3.7V 5V)Input current : 1A(1A Version);2A(2A Version);4A(4A Version)Charging voltage : 8.4VCharging current : 0.55A(1A Version);1.1A(2A Version);2.2A(4A Version)3-Cell(3S) 12.6V Version：Input voltage : DC 3-6V(Recommend DC 3.7V 5V)Input current : 1A(1A Version);2A(2A Version);4A(4A Version)Charging voltage : 12.6VCharging current : 0.37A(1A Version);0.74A(2A Version);1.48A(4A Version)4-Cell(4S) 16.8V Version:Input voltage : DC 3-6V(Recommend DC 3.7V 5V)Input current : 1A(1A Version);2A(2A Version);4A(4A Version)Charging voltage : 16.8VCharging current : 0.28A(1A Version);0.56A(2A Version);1.12A(4A Version)Feature:Switching Frequency up to 1MHzQuasi-CV mode to Compensate for the Voltage Loss on Battery Internal Resistance and Trace ResistanceAutomatic RechargeProtection for Battery Voltage Being Low than Input and Short BatteryGood adaptability to Input Supply with Limited Driving CapabilityBattery Overvoltage ProtectionLed indicator : ''CR'' LED is charge status indicator''OK'' LED is fully charged OR Constant voltage mode;Operating Ambient Temperature－40℃ to ＋85℃Size 39mm x 18mm x 6.3mmWeight : 5g

## Features

- Input Type-C 5V
- 3PCS 2S 4A Multi-Cell 2S Type-C To 8.4V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V 18650 Lithium Battery
- Protection for Battery Voltage Being Low than Input and Short Battery Good adaptability to Input Supply with Limited Driving Capability
- Battery Overvoltage Protection
- Applications: PDA, MP3 Players, MP4 Players; Digital Cameras; Bluetooth Applications; Game Players; Notebook; li-on li-po Lithium Battery 18650; Mobile phone; Solar charging; Audio equipment; Portable Devices; POS , Electric Fan;

## Product Details

- **Brand:** DWEII
- **Color:** 2S 4A
- **Product Dimensions:** 14"D x 2"W x 7"H
- **Item Weight:** 5 Grams
- **Output Voltage:** 8.4 Volts

## Images

![3PCS 18650 Lithium Battery Multi-Cell 2S 3S 4S Type-C to 8.4V 12.6V 16.8V Step-Up Boost LiPo Polymer Li-Ion Charger 7.4V 11.1V 14.8V （2S-4A） - Image 1](https://m.media-amazon.com/images/I/719GFDzjSvL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works fine.
*by C***E on March 11, 2025*

Mine were 4s lithium ion. Perfect solution. Weirdly needed a correct wire. If it doesn’t work try a different wire and block. No idea.

### ⭐ Do not buy
*by M***S on September 15, 2025*

Absolute trash. Heats up to unsafe levels and shuts down, I actually received a burn from this product.

### ⭐⭐⭐⭐⭐ Awesome product!!!!
*by M***  on May 4, 2024*

They work great and arrived very fast, and are exactly as advertised!!!

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**Shop now:** [https://www.desertcart.com.br/products/551054508-3pcs-18650-lithium-battery-multi-cell-2s-3s-4s-type](https://www.desertcart.com.br/products/551054508-3pcs-18650-lithium-battery-multi-cell-2s-3s-4s-type)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-07*