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charger speed?

Discussion in 'Electrical Engineering' started by Anthony Guzzi, Dec 9, 2008.

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  1. What makes a fast charger... fast? I'm looking for the technical details.

    I ask in regards to cell phone chargers

    It would seem that there aren't really "fast chargers" any longer, but a
    couple years ago I had 3 cell phone chargers, two for the wall and one
    for the car. The wall chargers, one came with the phone and it was
    fast, and one I bought at Wal-Mart for a trip, and it charged the phone
    noticeably slower. The car charger that I bought was pretty slow also.
    I'm wondering what is the difference between the two chargers?

    Thank you
  2. Tim Perry

    Tim Perry Guest

    In general, fast charge or rapid charge means about a one hour recharge. The
    higher the charging current the more the battery heats up under charge. This
    reduces the number of recharges before capacity is diminished.
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