5V Step-Up Power Module Lithium Battery Charging Protection Board USB 134N3P

Features:

• Charging and discharging indication
• Internally installed charging and discharging power MOS
• Preset 4.2V charging voltage, precision ±1%
• Max 8uA standby current
• Integration charging management and discharging management
• Intelligent temperature control and over-temperature protection
• Integration output over-voltage protection,short circuit protection,overload protection
• Integration overcharging and over-discharging protection
• Support trickle mode and zero voltage charging
  • When charging: red light flashing
  • Full charged: red light light for a long time

Specifications:

• Input Voltage: 3.7V~5.5V
• Charging Current: 1A(max)
• Output Current: 1A(max)
• Output voltage: 5V
• BAT Discharging Stop Voltage: 2.9V
• Discharging Efficiency: 85%(input 3.7V output 5V/1A)