5V 2A Lithium Battery Charge and Discharge Boost Module 3.7V 4.2V

This is CD42 5V 2A Charge Discharge 3.7/4.2V Lithium Battery Boost Voltage Indicator Protection Board. When using lithium battery, its charge and discharge need a circuit protection to protect the lithium battery from being charged or damaged or to obtain safe power supply from the lithium battery. The mobile power module is used as the charge and discharge protection for lithium battery. Compared with the general lithium battery protection board, the module has four LED indicators to indicate the current power of the lithium battery.

Technical Specifications:

• • Input voltage: DC 4.65V-5.5V
  • Overcharge protection voltage:  4.2V ± 1%
  • Over discharge protection voltage: 3 ± 1% v
  • Charging current: 0-2.1A
  • Discharge current: 0-2.4A
  • Input protection:: over current, over voltage, short circuit protection
  • Output protection:  over voltage, overcharge, over discharge, : over current protection
  • Operating temperature range:  – 20℃ to + 85 ℃
  • Product size: 25 * 16mm/0.98*0.62”

Pin Description:

• • VIN : Charge port positive input +
  • GND : Charger Negative Input –
  • BAT : Lithium Battery +
  • GND : Lithium Battery –
  • GND : Output negative output –
  • VOUT: Output Positive Output +
  • KEY : Output Enable Trigger Port (Low Pulse Trigger)

Package Includes:

• • 1 x 5V 2A Charging Discharging Protection Integrated Boost Module 3.7V/4.2V Lithium Battery