Solar Panel Battery Charge Controller Circuit

It s a 555 based simple circuits the charge the battery when the battery charge goes below the lower limits and stop charging when the battery reaches it s upper limit voltage.

Solar panel battery charge controller circuit.

Solar charge controller specifications. 50w 4a 12v nominal open circuit voltage. 7 to 14v adjustable not recommended for 6v applications max power dissipation. It s an automatic switching circuit that used to control the charging of a battery from solar panels or any other source.

We have a solar panel with internal blocking diode some kind of switching circuit and the battery to be charged. High current low drop solar charger circuit. This low drop solar panel charger circuit is going to be used to accomplish optimum current from a solar panel system whilst charging a conventional lead acid 12 volt battery. For getting a regulated charging supply.

The above explained solar charger circuit using transistors and with auto cut offs can be used for any small scale solar controller applications such as for charging cellphone batteries or other forms of li ion batteries safely. 18 to 20v output voltage range. 16w includes power dissipation of d3 typical dropout voltage. It gives you approximately the identical current as though the solar panel was attached straight to the battery.