The Museum of HP Calculators

HP Forum Archive 16

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the 34c and battery packs
Message #1 Posted by megarat on 21 Oct 2006, 1:00 a.m.

Hey all,

I've been considering getting a 34c just for fun, but I don't have a clear understanding about how the battery-pack "works", or if it's needed. For my puposes, having it connected via mains power would be fine, but I've read a report here and there about the battery being required -- even using mains power -- for proper operation.

Can anyone enlighten me?

thanks, -cam

      
Re: the 34c and battery packs
Message #2 Posted by Jan on 21 Oct 2006, 7:58 a.m.,
in response to message #1 by megarat

Hello,

The 34C and other members of the spice (3x E/C) require working battery packs, EVEN WHEN CONNECTED TO AN AC ADAPTER, for operation (they just don't work at all with a bad pack). Bad battery packs or running a unit without a battery pack installed may even harm the calculator.

regards Jan

      
Re: the 34c and battery packs
Message #3 Posted by ssf on 22 Oct 2006, 12:00 p.m.,
in response to message #1 by megarat

replacing the bateries inside the battery-pack hp 34c is easy you can use new NiCd rechargables bateries search the museum for more information.

http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=335

the 34c require the battery-pack to work correctly, never use the calculator without bateries

            
Re: the 34c and battery packs
Message #4 Posted by megarat on 22 Oct 2006, 12:29 p.m.,
in response to message #3 by ssf

Terrific, thanks for the info, everyone. This is very helpful.

-cam


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