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Small Solar Panel

Step 14Put it in the sun

The solar panel is complete--place it in the sun and charge your batteries. I'm estimating that at 250 milliamps, the solar panel will take 10-12 hours to fully charge my 1800 milliamp/hour batteries.

Although the diode will prevent the batteries from discharging into the solar panel, there is no protection against over charging, so don't leave the batteries out too long. Also, the panel may not be able to take a drenching rain. Even though it is sealed up, I take mine inside if it looks like it is going to rain.
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2 comments
Jun 23, 2007. 12:12 AMCommanderBob says:
Nickle metal hydride batteries can take up to 1/10 of there mAh rating and safely dissipate this as heat. This is the minimum and I am sure that if your batteries were charged and you left it there for say an hour, nothing would happen. Now if your batteries are lithium than it is a different story.
Jun 19, 2009. 5:20 PMAusi319 says:
reverse diodes will make them so they dont drain into the panel.
Jan 29, 2008. 3:56 AMr.abdou says:
How Old are you?

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