Charge Batteries with Solar Panel - Questions Answered

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To charge batteries with a solar panel, connect the positive wire of the battery holder to the positive wire of the solar panel, and the negative wire to the negative wire. This ensures that when the solar cell's electromotive force exceeds that of the battery, a charging current flows into the battery. It's important to include a series diode between the solar cell and the battery to prevent the battery from discharging back through the solar panel when light levels drop. Many solar panel kits come with this diode already included. Proper connections and components are crucial for safe and effective battery charging.
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I know it sounds like a really stupid question but i am a bit confused as to what to connect and just want to make sure i do it right. I have a solar panel to charge a set of batteries, i connect the positive wire of the batterie holder to the negative or positive wire for the solar panel, i believe its negative but I'm confusing myself a bit haha. thanks for the help!
 
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Your idea sounds risky. You should connect + to + and - to -. That way, when the solar cell emf is just a tad higher than that of the battery you will get a charging current into the battery.
You should make sure there is a series diode (+ to solar cell +) to stop the battery discharging through the solar cell when the light level falls. Many arrays are sold with a diode included.
 
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