| http://www.w3.org/ns/prov#value | - Below is a circuit where the voltage is removed the usb on the computer will be strengthened by several components so that the voltage used to charge batteries more powerful and filtered, and will make it more durable and long lasting.Part List :R1 = 1 KR2 = 330 RR3 = 4K7R4 = 300 RR5 = 27RD1 = 4.7 volt zener /1WC1 = 100uF/16VQ1 = BC548Q2 = BC558A
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