2S 8.4V 2A Type-C Lithium Charger Module | Pro Tronix

Product Description

The 2S 8.4V 2A USB Type-C Lithium Battery Charger Module (Green PCB) is a high-efficiency step-up synchronous boost charging board designed specifically for dual-cell (2S) 7.4V / 8.4V lithium-ion and 18650 battery packs. Powered via a modern USB Type-C input (5V), this compact module boosts the input voltage to deliver a precise 8.4V charging output with up to 2A constant current, ensuring rapid and efficient charging for your series battery builds.

Equipped with integrated charge status LED indicators and essential safety protections against over-voltage and thermal overload, this green PCB module is an ideal charging controller for portable Bluetooth speakers, custom robotics, field test gear, and DIY 2S lithium battery projects.

⚠️ Wiring & Charging Tip: Connect your 2S battery pack (8.4V total series connection) strictly to the output solder pads observing proper polarity (BAT+ and BAT-). Ensure your 5V USB Type-C power adapter can supply sufficient current (at least 5V/2A or higher) for maximum charging efficiency.

Technical & Architectural Highlights

• USB Type-C Power Input: Modern 5V Type-C interface for easy power supply using standard phone chargers and power banks.

• Synchronous Boost Converter: High-efficiency boost topology delivers up to 2A fast charging output at 8.4V.

• Dual LED Status Indicators: Onboard LED lamps clearly indicate charging status (e.g., Charging / Full Charge).

• 2S Battery Dedicated Design: Optimized specifically for 2-series 7.4V nominal / 8.4V peak lithium-ion and 18650 cell packs.

🧰 Recommended Batteries & Power Accessories

Completing your 2S battery charging system? Add these matching batteries and power management essentials to your order:

1. BMS 2S 7.4V 8A Li-ion Protection Board: Essential battery management circuit to pair with your charger for over-discharge and short-circuit protection: Pro Tronix BMS Collection

2. 18650 & Cylindrical Lithium-Ion Batteries: High-capacity rechargeable cells for building durable 2S battery packs: Pro Tronix Lithium Batteries Collection

3. Lithium Polymer (LiPo) Batteries: Compact single and multi-cell LiPo packs for lightweight portable electronics: Pro Tronix LiPo Batteries Collection

4. 1S Lithium Battery Charger Modules (TP4056): Dedicated 5V charging boards designed for single-cell 3.7V lithium batteries: Pro Tronix 1S Charger Collection

5. Battery Holders & Connectors: Secure 18650 battery holders, nickel strips, and wire leads for clean pack assembly: Pro Tronix Battery Holders Collection

Technical Specifications

Applications

• DIY 2S Battery Pack Charging: Convenient Type-C charging port for custom 7.4V / 8.4V 18650 packs.

• Portable Audio & Speakers: Built-in charger module for rechargeable Bluetooth speakers and audio amplifiers.

• Robotics & IoT Instrumentation: Safe charging solution for 2S-powered field devices and micro-robots.

What’s in the Box

• 1 x 2S 8.4V 2A USB Type-C Lithium Battery Charger Module (Green PCB).

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