|Re: 38C Battery Question|
Message #2 Posted by Vieira, L. C. (Brazil) on 5 Sept 2006, 2:23 p.m.,
in response to message #1 by marc Kremers
many original NiCadŽs that came with portable devices have a 'flat' positive pole. Consumer rechargeable batteries usually have a visible, thicker 'tip'. If you take a closer look at the ones you have in your 38C, youŽll see that one of the poles is actually isolated, while the other is actually the bottom of the battery 'can'.
Because consumer rechargeables have this 'extended' tip in their positive poles, they are not the best choice for the Spices (HP3xE/C series: HP31E, 32E, 33E/C, 34C, 37E and 38E/C) because they bend the contacts too much, causing them to break after some time. I have some Spices with broken contact... 8^(
As a reference: the contact closer to the edge of the calculator case (topmost) is actually the negative pole.
Edited: 5 Sept 2006, 2:25 p.m.