USB Smart 3.7V / 4.2V Lithium Battery Charger with LED Indicator

The HD-9668A Lithium Battery Charger is a compact, smart, and reliable solution for charging 3.7V rechargeable lithium-ion batteries. Powered via a standard USB cable, it can be conveniently connected to power banks, wall adapters, laptops, or car chargers. Featuring a 4-LED status screen, it displays live battery voltage and charging progress at a glance.

Key Features

• 4-Level LED Indicator: Real-time display showing charging status and battery voltage levels:
  • 25% (3.5V)
  • 50% (3.7V)
  • 75% (3.7V)
  • 100% (4.2V Full Charge)
• USB-Powered Convenience: Plugs into any standard DC 5V USB output, including laptops, wall chargers, power banks, and car adapters.
• Comprehensive Multi-Protection:
  • Overcharge Protection
  • Short Circuit Protection
  • Temperature Control
  • Reverse Polarity / Battery Protection
• Durable & Portable: Constructed from high-quality, heat-resistant ABS material with a lightweight design for easy portability.
• Spring-Loaded Slot: Securely holds rechargeable lithium cells in place during charging.

Specifications

• Model: HD-9668A
• Input Voltage: DC 5V / 1.2A
• Output Voltage: 4.2V DC
• Output Current: 500mA / 1200mA
• Power Source: Attached USB Cable
• Supported Battery Types: 3.7V Rechargeable Lithium-Ion (18650 and similar sizes)
• Certifications: CE, RoHS
• Material: ABS Plastic
• Color: Black