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IBM ThinkPad A21p RTC battery dies fast

Discussion in 'Hardware' started by ua1osm, Mar 27, 2010.

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  1. ua1osm

    ua1osm Thread Starter

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    Mar 27, 2010
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    Problem is in motherboard. Who helps me with a part of schematics of IBM ThinkPad A21p 2629 HWU notebook, related to BIOS support circuitry? Lithium coin shaped battery has high discharge current and dies in hours. Until this battery keeps up, the notebook works perfect. Using car accumulator 3 V tap solves the problem. I want to dig in the motherboard and connect RTC battery lead right to BIOS chip, bypassing harmed circuitry. Who helps me? TBL company in Tampa FL neglects my e-mail yells.
     
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