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Step 4Finished!
So now its done, but before connecting it to any usb device, be sure that it works properly! (the voltage should be 5 volts, the LED only should glow,etc...) When all is checked and you are sure that everything works you can (if you like it) start to put hot melt around it as kind of protection. In case you don't like hot melt you can put the device into a match box or everything you want...
on the left side of the picture you see an older version on the right you see the newer smaller, enhanced version
Some Technical data:
Input: 1,5 to 3 volts
Output: 5 Volts @ 200mA max. (really enough to charge an iPod mini or a mobile phone, trust me ;-) )
Watts and efficiency:
In: 0,95W at 2,5 V
Out: 0,875W at 5 V
loss: 0,075W
8 percent loss
92% efficiency
on the left side of the picture you see an older version on the right you see the newer smaller, enhanced version
Some Technical data:
Input: 1,5 to 3 volts
Output: 5 Volts @ 200mA max. (really enough to charge an iPod mini or a mobile phone, trust me ;-) )
Watts and efficiency:
In: 0,95W at 2,5 V
Out: 0,875W at 5 V
loss: 0,075W
8 percent loss
92% efficiency
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