iPC Battery Replacement Tip

joeshepardjoeshepard Registered User
I just replaced the battery in my iPC and had a real head scratcher going.

My iPC has the ASUS A7N8X-VM/400 mother board in it. It takes a 3volt CR2 lithium battery. The one that looks like a stubby AA battery. Anyway, I took out the old battery and replaced it. Started up and reset all the BIOS info. The board started up no problem. Job done, I thought. I have my board plugged into a plug strip which I turn off at night. Came in the next day and upon turning on the plug strip and restarting all of the BIOS settings had been lost. After much fooling around, checking the voltage of the new battery, cleaning contacts etc with no change I noticed that the battery has a heat shrink label on it that extends down and covers a bit of the bottom of the negative end of the battery, enough that it got in-between the battery and the contact on the board. Took a razor blade, removed the heat shrink and now all's good.

Anyway a long winded way of saying check out the bottom of the battery before you install it.



  • bradpepebradpepe Registered User, HES Alumni
    edited November 2009

    Yes the heat shrink on some batteries does cover quite a large amount of the bottom of the battery. When we were looking for a battery to ship with, I collected hundreds of batteries to compare the shrink wrap tolerances. We actually had a spec on what was allowed from our suppliers!

    In going through the process, I was shocked to see how different the batteries are from various manufacturers. Someplace I have a spreadsheet that explains the differences...
  • joeshepardjoeshepard Registered User
    edited November 2009
    Might have been easier to just ship the battery along with a razor blade and let the customer do it! (bad joke).

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