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

This is 5V Step-Up Power Module Lithium Battery Charging Protection Board USB For DIY Charger 134N3P. It’s a Lithium Battery Charging Protection Board Boost Converter LED Display USB For DIY Charger 134N3P & High-Quality USB iron with Cheap display port video card and Integrated Circuits.

Note: Product may vary in terms of design.

Features

• BAT Discharging Stop Voltage: 2.9V.
• Discharging Efficiency:85%(input 3.7V output 5V/1A).
• 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 overtemperature protection.
• Integration output overvoltage protection, short circuit protection, overload protection.
• Integration overcharging and over-discharging protection.
• Support trickle mode and zero voltage charging.
• When charging: red light flashing.
• Fully charged: Red light glows for a long time.