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    SubjectRe: [IDEA] Poor man's UPS
    On Monday 22 May 2006 01:40, Christian Trefzer wrote:
    > I think it would be cheaper ("costs" for your solutin in terms of
    > required I/O power and hard disk space) to use two or more lead
    > batteries which are charged and discharged in a round-robin fashion,
    > controlled by some smart home-brew circuitry, and connect the beast to
    > some control/monitoring software via RS-232 ; )
    > The logic should at least completely drain the battery before
    > recharging,

    I thought deep discharge cycles were unhealthy for lead batteries?
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