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Engineering/Energy Questions

J

JC724

Weaksauce
Joined
Jan 20, 2016
Messages
118
So I am helping or trying to help my younger cousin with a school project. He is like in the 5th grade, and goes to some fancy school. Anyway he is task with creating like an energy backpack. Basically he is supposed to use an object to charge up solar energy and and then something to transfer that energy into a device(any device, cell phone, etc)? So like a moving charger that uses the sun.

I am more into software can anybody help me out with this? Mostly ideas and materials on how to do it?

Also are there any like Electrical Engineering or Engineering forums that would be a good place where I can ask questions like this?

Thanks any help is appreciated.
 
Go get just about any solar outdoor light from Home Depot or Lowes.

Almost all of these run off of 4.5VDC solar panels, and hook into regular NiCad or NiMH rechargable AAs (a 4.5V solar panel will charge a 2x AA 3VDC battery pack).

Gut the panel and the battery holder out of the light (or leave it in and maybe just unhook the light, doesn't really matter I guess, depends on how fancy you want to get) - you have a portable battery charger.

Get as many of those battery packs as you need to do X

It could be running a flashlight (just pop the batteries out of your solar charger, and into the flashlight - although you already had a light in the solar light, but that isn't the point), a toy, a battery-powered USB charger, whatever.
 
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