Solar Panel Charge Controller Circuit

I will be highly obliged.
Solar panel charge controller circuit. 50w 4a 12v nominal open circuit voltage. Solar charge controller specifications. 18 to 20v output voltage range. Diy automatic solar charge controller.
The solar charge controller circuit diagram comprises of the following hardware components. Can this solar panel can charge the cell 18650 and if yes than how much time this solar panel will take to charge the cell 18650 2100mah. Hello friends today i am back with another project called diy automatic solar charge controller. It s an automatic switching circuit that used to control the charging of a battery from solar panels or any other source.
7 to 14v adjustable not recommended for 6v applications max power dissipation. Though it is not of your circuit even than i will request you to solve my problems like before and help me like a teacher. 16w includes power dissipation of d3 typical dropout voltage. At89c2051 microcontroller serial adc0831 voltage regulator 7805 mosfet lcd display and few discrete components such as solar panel rechargeable battery dusk to dawn sensor charge control and load control.
The solar charge controllers can also control the reverse power flow.