This power bank module is designed for 2x 3.7V 18650 batteries and provides dual USB output for charging devices. With built-in overcharge, over-discharge, and short-circuit protection, it is ideal for DIY power banks, electronics projects, and hobbyist applications.

Key Features:

• Dual USB Output: Provides 5V DC up to 2A for charging smartphones, tablets, and other USB devices
• Battery Compatibility: Supports 2x 3.7V 18650 Li-ion batteries
• Protection Features: Overcharge, over-discharge, overcurrent, and short-circuit protection
• Compact Design: Small PCB module suitable for custom power bank builds
• LED Indicators: Shows battery charge status

Specifications:

• Input Voltage: 3.7V (2x 18650 batteries in series)
• Output Voltage: 5V DC
• Output Current: 2A max (combined dual USB)
• Battery Type: 2x 3.7V 18650 Li-ion
• PCB Module Size: Standard XHD-2310H form factor
• Application: DIY power banks, electronics projects, portable chargers

Applications:

• DIY portable power banks
• Electronics hobby projects and prototyping
• Emergency USB device charging
• Educational projects for learning battery management