XY-L10A, JDY-40, NS-06
Project files .ARK for mobile and .AIA for appinventor https://drive.google.com/open?id=1aKq...
Battery charge control module.
The XY-L10A charging module is suitable for charging any batteries (lithium, lead-acid, and starter) in the voltage range from 6V to 48V with a charging current of up to 10A (the maximum charging current is limited by the contact parameters of the relay used). Its main advantage is its very low cost and a sufficient set of functions for creating an automatic charger.
Note: XY-L30A modules with a more powerful relay are also available; their contacts are rated for currents up to 30A http://ali.pub/5bff5r .