Will a solar calculator's PV cell charge the battery through two diodes?

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The discussion centers on the functionality of a solar calculator's photovoltaic (PV) cell in charging its battery through two diodes. The diodes serve a protective role, preventing current from flowing back into the PV cell from the battery, thereby ensuring the cell operates efficiently. Participants confirmed that the presence of two diodes is intended to safeguard the PV cell from discharging the battery, which is crucial for maintaining the cell's performance.

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John1397
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I have a solar calculator and it also has a battery what I want to know if this solar cell would charge the battery. The positive from solar cell is connected to battery, but the negative from solar cell seems to pass thru two diodes before connecting to battery.

John
 
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hi John

the diodes are probably there to stop current from flowing back into the cell from the battery
purpose -- to protect the cell

Dave
 
Hello John, I am surprised there are 2 ( parallel or series?) - but yes this is to keep the PV cell from discharging the battery. PV Cells essentally work in reverse - they radiate energy when a potential is applied greater then the potential they are creating.
 

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