two power supply management control board

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eslam_reda

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i want to do control system to charge battery from solar cell at day then on night the charged battery light load
the battery :12V. 7A
the solar cell : 15-17V 0.5A 8watt
the load is microcontroller 89s52 flashing 150 LED
please i need the solution
 

Hi,
a possibility (I thin, linked to first from Keith):
h**p://ludens.cl/Electron/solarreg/Solar~1
K.
 

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