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    Building a simple battery charger

    this was posted on another internet page.... hope one of you can read it and make some sense out of it """the phone would start charging when the power supply was at 5.2V, and would stop when it went down to about 5.09V. Given the 0.6V drop across the diodes this means that the phone happily...
  2. G

    Building a simple battery charger

    Hello All, I am in the 10th grade and as part of my science-class project i decided to build a mobile-mobile charger...the way this works is pretty simple actually.... I connect a couple of AA batteries together and send the output to my mobile thus charging the mobile battery.... I have two...
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