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High capacity caps for ram backup

Discussion in 'Electronic Basics' started by [email protected], Jan 3, 2005.

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  1. Guest

    Hi all,

    My electronics knowledge is pretty basic; I know enough to be
    dangerous. :)

    I have a device which uses a cap for 'battery backup' of parameters.
    The cap is listed as as GC5.5v, .22f. The cap has an 'M' on it; I can't
    tell who makes it. Panasonic seems to have similiar caps though -
    'their SG and SD gold series'

    Without knowing more about the circuit it is in, is it 'fairly' safe to
    increase the cap to 1f or so? The battery backup isn't nearly long

    I realize it will take ~5x longer to charge the cap (which is fine).
    Thanks for any answers,
  2. I think it is mostly a matter of cost.
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