2S 4A 2pin lithium battery charger

Description

The 2S 4A Lithium Battery Charger Module is a small, high-efficiency device designed to charge 2-cell (2S) lithium-ion or LiPo battery packs. It boosts a low-voltage DC input commonly from a USB Type-C port to the higher voltage needed to charge 2S batteries.

Key Features

• USB Type-C Input: Supports convenient and up-to-date connection options.
• Boost Conversion: Effectively raises lower input voltages to 8.4V, ideal for charging 2S battery packs.
• Built-in Safety Features: Includes protective measures to ensure the safety of both the charger and battery.
• LED Status Lights: Display the current charging state in real time.
• Compact Size: Space-saving design fits well in a wide range of projects and setups.

Technical Specifications:

• Input Voltage: DC 3–6V (optimal at 3.7V or 5V)
• Maximum Input Current: Up to 4A
• Output Charging Voltage: 8.4V, ideal for 2S Li-ion or LiPo batteries
• Charging Current: Around 2.2A
• Switching Frequency: Reaches up to 1MHz
• Charging Mode: Constant Current / Constant Voltage (CC/CV)
• LED Indicators:
  • CR: Indicates charging is active
  • OK: Signals full charge or constant voltage stage
• Protection Features:
  • Overvoltage protection
  • Undervoltage protection
  • Short-circuit protection
  • Over-discharge protection
  • Temperature protection
• Operating Temperature Range: -40°C to +85°C
• Module Size: Approximately 39 × 18 × 6.3 mm
• Weight: About 5 grams

Applications

The Step-Up Power Module is highly versatile and can be used in a variety of devices including PDAs, MP3 and MP4 players, digital cameras, Bluetooth-enabled devices, gaming consoles, laptops, mobile phones, solar charging systems, audio equipment, portable gadgets, POS systems, electric fans, and other USB Type-C charging devices