How to charge 2 5V 2A solar panels
This uses a buck converter as a 5V Output to charge the battery(Li Po/Li-ion).And Boost converter for 3.7V battery to 5V USB output for devices needed 5 V. Similar to the Original system that uses Lead Acid Battery as an energy storage charge by either PWM or MPPT controller.And supply for 12V Devices. This One only uses a Buck converter to convert 12V (solar panel nominal …