15PCS 5V Boost Step Up Power Module Lithium LiPo Battery Charging Protection Board for DIY Charger 134N3P Program

Charge and discharge status indication Built-in charging and discharging MOS Input voltage: 3.7V~5.5V; Charging current: up to 1A Output current: up to 1A; Output voltage: 5V BAT discharge termination voltage: 2.9V Preset 4.2V charging voltage with an accuracy of ±1% Discharge efficiency: 85% (input 3.7V output 5V/1A) Maximum 8uA standby current Integrated charge management and discharge management Intelligent temperature control and over temperature protection Integrated output overvoltage protection short circuit protection heavy duty protection Integrated overcharge and overdischarge protection Supports turbulence mode and zero voltage charging Type:Voltage Regulator Model Number:5V Lithium Battery Charger Step Up Protection Board Application:Computer color:Blue + silver Material:PCB+Metal size:21.7 x 17.2mm Package Contents: 15 x Lithium Battery Charging Protection Board Only the above package content other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.