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

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

package Includes:

1 x 5V Step-Up Power Module Lithium Battery Charging Protection Board

Specifications and Features:

1. Input Voltage:3.7V~5.5V
2. Charging Current:1A(max)
3. Output Current:1A(max)
4. Output voltage:5V
5. Dimensions: 23 x 18 x 10 mm (LxWxH)
6. Weight: 3 gm
7. BAT Discharging Stop Voltage:2.9V
8. Discharging Efficiency:85%(input 3.7V output 5V/1A)
9. Charging and discharging indication
10. Internally installed charging and discharging power MOS
11. Preset 4.2V charging voltage, precision ±1%
12. Max 8uA standby current
13. Integration charging management and discharging management
14. Intelligent temperature control and overtemperature protection
15. Integration output overvoltage protection, short circuit protection, overload protection
16. Integration overcharging and over-discharging protection
17. Support trickle mode and zero voltage charging
18. When charging: red light flashing
19. Full charged: Red light glows for a long time