Method and circuit for controlling battery charge and supply by microprocessor

A circuit for controlling battery charge and supply by microprocessor, comprising:

• a microprocessor, being individually connected to a charging circuit, a DC voltage circuit, and a power supply circuit;
• said power supply circuit comprising a first power supply switch and a second power supply switch, and said first and second power supply switches also connecting to said microprocessor, thereby said microprocessor controlling said first and second power supply switches to an ON or OFF status;
• a first chargeable battery and a second chargeable battery, being connected between said charging circuit and said DC voltage circuit, and said chargeable batteries being connected to said microprocessor such that said microprocessor detecting the electric level of said chargeable level, and said power supply circuit being connected to an electronic device such that when the microprocessor controlling said first power supply switch to the OFF status, said first chargeable battery supplying power to said electronic device;
• when said microprocessor controlling second power supply switch to the OFF status, said second chargeable battery supplying power to said electronic device;
• a first charging switch and a second charging switch, being connected between said first and second chargeable batteries and said charging circuit respectively, and said first and second chargeable batteries connecting with said microprocessor such that said microprocessor respectively controlling said first and second charging switches to an ON or OFF status to respectively charge the first chargeable battery or the second chargeable by said charging circuit.