2Pcs Circuit Boost Board 134N3P Charge Discharge Module Diy Usb Power Bank 4.2V

Features: Material: ABS Input voltage: 3.7v to 5.5v Charging current: 1A (max.) Output current: 1A (max.) Output voltage: 5V Battery charge cut-off voltage: 4.2v±1% Battery discharge cut-off voltage: 2.9v±1% Discharge efficiency: 85% (input 3.7V output 5V / 1A) Charging: The red light will flash Fully charged: Steady red light Standby current: 8uA Product Size: 2.3*1.8*1cm

Packing list: 2pcs X boost module

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