5V 1A 2A 18650 Battery Charging Module Step Up Power Supply Bank Lithium Polymer Battery Charger Board Software Hardware Version
Specifications:
Model: Battery Charging Module for Power Bank
Size:69.37x20.54x6.42mm
Input:5V 1A
Output:5V 1A or 5V 2A
Input Interface:V8 port,micro USB
Electricity Quantity Display:4 grade LED lamp to display electricity quantity,non-operation state automatic power off
Charging Display:
when charging 0-25%,the first light will flash,and other lights are off;
when charging 25%-50%,the second light will flash,and the first light remains on;
when charging 50%-75%,the third light will flash,and the first two lights remain on;
when charging 75%-100%,the fourth light will flash,and the first three lights remain on;
then the four lights are all on until charging to 100%
Notice:
Adaptive Battery:3.7-4.2V polymer battery
Protection Function:overvoltage protection;overcurrent protection;undervoltage protection
Charging Input Requirement:the most advisable is over 5V 1A charger,and any other 5V constant vltage power supply can also be used.
Difference between Hardware and Software Version:
The software version is more powerful than the hardware version.
The hardware version is continuously running and the software version is automatic. There is a load to run. Life is longer than hardware.
The hardware version of the LED power display is not accurate enough to achieve the effect of breathing lights and marquees. The software version is intelligent. The software version is more accurate than the hardware version.
The conversion efficiency of the hardware version is generally 75%. The conversion rate for the software version is 85%. That is to say, the mobile power of the same capacity will charge your mobile phone, and the software version will charge more times than the software version. This point is more obvious when the capacity is larger.
The software version has a longer service life, and the software version uses a control IC that can be programmed to control the display of the indicator light and is more intelligent. The hardware version simply uses a simple circuit to control charge and discharge.
Advantages of the software version:
The software version is dual IC control. It is easy to realize synchronous rectification, high efficiency, low heat generation, and flexible function changes, which has become a development trend. Software version optimization is mainly to speed up the main loop. Currently, the main loop is less than 200us. Fast control is achieved by integrating a dedicated comparator. For example, a DC-DC comparison is performed at 5.0 V, and pwm control is turned off unconditionally at 5.5 V.
Input interface: V8 port, micro usb (for Android port, flat port)
Power display: 4 levels of LED lights display power, intelligent automatic shutdown in non-working state.
Charge and discharge protection: The circuit board has a built-in lithium battery protection IC with overvoltage protection, overcurrent protection and undervoltage protection.
Charging input requirements: The best match is the charger above 5V1A, and any other 5V constant voltage power supply can be used as the charging input power.
Package Included:
1 x Battery Charging Module
Hardware Version
Software Version
