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I have a N-size battery charger (HP PN 92266a) which was for ni-cad batteries used in HP 41Cs. I read that N-size ni-cads are no longer produced. Does this make this charger obsolete? Can some other form of rechargeable battery be used? If so, what kind?
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They are still available from Panasonic (175mAh)
-Stefan
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Ni-cad N cells are also available from your local Radio Shack.
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The cells that are no longer made are the 1/2N cells used in the 82120A battery pack for the HP41.