HP28S battery stuck! Message #1 Posted by Tom (UK) on 13 Feb 2002, 12:29 p.m.
Help,
I recently got hold of a HP28S in good working condition for 6 pounds (about $9) but the 'inner' battery is stuck in the machine.
The single battery comes out easily, the first of the double batteries only comes out if I slap the calculator into my hand a few times, the last battery will not budge!
I can see a rubber strip that seems to be stopping the battery coming out because it is twisted. Can I cut this to try and remove the last battery? Does this rubber strip simply stop the batteries rattling?
The other thing I think might work is if I make a small tool by bending over a stiff wire, sliding it down the side of the battery and pulling - but I think the wire will bend.
A destructive method might be to drill a small hole in the hinge side of the calculator and push the battery out - but I don't want to do this.
Has anybody seen this problem on a clamshell HP, and if so how did they solve it?
Tom.
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