1. 3.7V boost to 5V (or 6V, or 9V), 2A--4A.
2. With 1-4 lights to choose from for power display, the LED will always display after power on.
3. 4.2-4.4V charging protection, overcurrent and overload p
As an RF engineer and tester, in my daily work, in addition to test instruments, calibration parts, and connecting cables, I am most exposed to adapters. During the maintenance process, we found that