5V Boost Step Up Power Module Lithium LiPo Battery Charging Protection Board LED Display USB For DIY 134N3P Program

5V Boost Step Up Power Module Lithium LiPo Battery Charging Protection Board

Input voltage: 3.7V~5.5V
Charging current: Max 1A
Output current: 1A max
Output voltage: 5V
BAT discharge termination voltage: 2.9V
Preset 4.2V charging voltage with accuracy of ±1%
Discharge efficiency: 85% (input 3.7V, output 5V/1A)