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The battery cap is corroded on. How can it be removed?

I picked up the apple wireless keyboard from a friend who wasn't using it. I went to put batteries in it and found out that it was stuck.

Then I:

  • Tried a basic flathead
  • Tapped around the head with a small hammer to see if it would unseal
  • Attempted a vice and nickel method--I now have a torqued nickel.

So far no direct access method has worked.

I also read the Batteries Corroded & stuck thread n here.. That allowed me to know there was a panel on the back. My KB is a little different, the panel is more in the middle. I opened it up and see there is a battery--so I'm nearly sure it's a corroded battery that has leaked onto the aluminum screw and caused all of this.

Anyone have ideas on how to solve this?

Beantwoord! View the answer Dit probleem heb ik ook

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PC Laptop batterijen

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Mix up a solution of water and baking soda (about a teaspoon per cup) and apply that with a cotton swab to dissolve the corrosion.

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Except that it's potassium hydroxide, which is a base. Acid would work better. But KOH is also easily dissolvable in water, so this will work... even without the baking soda.

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Run hot water on the metal around the stuck endcap. You are attempting to heat up this area to get the aluminum to expand a bit. Be careful not to get water into the keys. I was able to successfully unscrew a stuck endcap with this technique.

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Didn't work for me. Any other suggestions?

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Thanks for the great info! I was about to take my keyboard into a shop to get fixed but found this thread. I used the water-nickel approach and was able to open the sealed cap in a few minutes (after trying to pry it open for nearly half hour with a screw driver and keys yesterday). Inside was two corrosive 2A’s.

God bless you all. Apple keyboard now back in working condition again.

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Andy zal eeuwig dankbaar zijn.
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