MH-CD42 5V 2.1A Charge Discharge Integrated 3.7V 4.2V Lithium Battery Boost Power Battery Protection Module

Original price was: 150.00৳ .Current price is: 149.00৳ .

🔋 Supports 3.7V lithium battery with 4.2V full charge cutoff
⚡ Boosts output to stable 5V @ 2.1A for mobile power applications
🔄 Simultaneous charge & discharge—ideal for UPS setups
📊 4-level LED indicators show battery status in real time
🧠 Built-in protections: OCP, OVP, SCP, OTP for safe operation
🔌 Charging input: DC 4.5V–5.5V (recommended 5V)
🔧 Discharge current up to 3.5A with 96% efficiency
📐 Compact module for DIY power banks, recorders, tablets
📲 KEY pin for output enable/disable via low pulse trigger
📦 Includes: 1× MH-CD42 integrated charge/discharge module

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Description

Description

🔧 Bullet Point Highlights

  • 🔌 Charge/Discharge Current: Supports up to 2A for consistent power supply
  • 🔋 Voltage Support: Ideal for 3.7V and 4.2V 18650 lithium batteries
  • 🌡️ Operating Temperature: Wide range from -40°C to +80°C — suitable for indoor/outdoor use
  • 🖥️ Storage Safety Spec: Computer 105℃ STJF 挥发物 ≤ — optimized for heat-resilient environments
  • 🎯 Integrated Charge & Discharge Circuit — simplifies power control in compact systems
  • 🧩 Applications: Arduino, STM microcontroller projects, portable electronics, robotics, and DIY power setups
  • 📐 Compact Design: Small form factor — perfect for embedding inside small enclosures
  • 📊 Stable Power Delivery: Maintains consistent voltage and current for sensitive electronics
  • 🛠️ Plug-and-play interface with clear I/O pads — great for beginner and advanced builders
  • 💪 Durable and efficient — designed to last under variable voltage loads and rugged conditions
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