Redone and improved The nintendo ds lite seems like it was made to have solar cells put on it.It has a large amount of surface area on the top and bottom that both face upward when the ds is opened.The top and bottom faces each have exactly the right amount of room for two 60x60mm solar cells side by side(Four total).Each one has a maximum power output of 3 volts at 40 ma.The top two are connected in series and so are the bottom two.These two sets are wired in parallel to get a total of 6 volts at 80 ma, perfect for trickle charging the battery. My original instructable had a couple of flaws, some of them very important.I was originally going to post the updates on my first instructable, but there were so many changes that i had to make a whole new one. Another thing i need to mention is why i didn use a 5v regulator and hook it up to the charging jack of the ds.The reason i did not do that is because i would have to rewire the solar cells to produce a higher voltage for the voltage regulator.This would give me less than 40 ma.Running that through a voltage regulator reduces that even further.Also, the ds would have its charging led on if i did this.That would suck about half of the remaining current, leaving next to nothing for the battery.If i did it that way, the battery would charge about 4 times slower. This is my third instructable, and if you have any questions, don hesitate to post a comment!Don forget to rate and vote either! Hey I know this instructable a bit old but hopefully your still around to answer yet more questions Thinking of implementing small solar cells into multiple gadgets and came across this:Wow 4.5V out of something so small!But wait, theres a catch, the current christian louboutin womens peep toe booties is only 5ma: ( So my question to dark sponge is: How important is the current in the process of charging small gadgets?Would the lack of current be a worthy sacrifice for the extra voltage? If that ones a no goer than i do have a second solar cell in mind with higher current so no worries. Dude! Edd hewett Ok i louboutin sale shoes think ive got more to add actually As i understand it(Which is not very well)The voltage is the christian louboutin wedding shoes uk amount of electricity and the current is the flow of electricity, so the 4.5V cell with 5mA current could charge a gadget(Say a mobile with a 3.7V battery)On its own but really slowly.Whereas with a 2v 25ma cell you would need 2 cells to generate enough v to charge the phone but it would charge a lot quicker as it has a lot more current. So. Would it christian louboutin mens sneakers charge 5 times quicker as it has 5 times the current? I am assuming current does not stack like v so if you were to include both the different cells in series the result would still only be a current of 5ma and not 30ma.Is this true?Edd hewett One way to think of it is like water in a tube, voltage is like pressure, helps to push the(Electrons)Through the parts and pressure is lost to them like in frictional resistance, thus the main purpose of resisters is to lower voltage, and current is the flow.You can add voltage(But not current)By making them in series or add current(But not voltage)By adding the power source in parallel.Each part generally needs so much pressure and flow to work but not too much or your figurative pipes will break or overheat from friction, such as a fuse will blow if the current is too high.So basically they need to be within a threshold to get it to work and below the point where it will fry your parts so just adding more current doesn mean it will charge faster, it might break it.Though from the looks of it the higher current set looks to be the better option and though i don know for sure should be a safe current.Hope that helps. 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