The Museum of HP Calculators

HP Forum Archive 08

[ Return to Index | Top of Index ]

HP41 AC adapter & battery charger
Message #1 Posted by John Breda on 1 Aug 2002, 2:23 p.m.

Does anyone have a battery charger for N cells for the HP 41CX. Also, looking for an AC adapter for the 41CX. Please e-mail to:

jbreda@massmed.org. Thanks.

      
Re: HP41 AC adapter & battery charger
Message #2 Posted by David Smith on 1 Aug 2002, 5:27 p.m.,
in response to message #1 by John Breda

It uses the 82059 A/B/C/D chargers. They appear with great regularity on Ebay. Average going rate $20 +/- $5.

            
Re: HP41 AC adapter & battery charger
Message #3 Posted by Ellis Easley on 1 Aug 2002, 7:33 p.m.,
in response to message #2 by David Smith

It sounds like he's looking for two different things - something to charge N cells and, I guess, the 41C rechargeable pack. That uses a 82059 but it doesn't sell for $20! Didn't an auction for a rechargeable pack generate a thread here of the "Do you beleieve what I saw on Ebay ..." variety?

      
Re: HP41 AC adapter & battery charger
Message #4 Posted by Vassilis Prevelakis on 2 Aug 2002, 2:53 a.m.,
in response to message #1 by John Breda

Hi John

You do not say were on earth you live, so I'll assume you live in the US. The easiest way to buy a charger for N cells is to go to Radio Shack. You need to buy a standard NiCd and NiMH charger (probably desktop) and a set of 4 converters to make the N-cells fit in the charger.

If the RS people have no clue how to order these adaptors, ask them to check the back of any rechargable N-cell pack sold by RS, it contains the magic product number. Best to wait till you get the adaptors before you buy the charger as they do not fit in all the chargers (esp. the small ones).

One final note, the RS code will order you a PACK OF FOUR ADAPTERS, so order only one - Yes I ended up buying 16 adapters :-(

On your second question (about running the HP-41 off a mains adapter), there is no sensible answer. HP used to produce a rechargable battery pack for the 41, but its a complete cludge as it uses minute cells which are difficult to find, tend to leak and need recharging very often. They allow the HP-41 to be operated using the same charger as the other HP-41 peripherals (e.g. the 82143 printer), but, like I said, they are expensive and too much of a bother. Its cheaper to buy another set of 4 rechargable N-cells and simply swap them round.

**vp

[ Return to Index | Top of Index ]

Go back to the main exhibit hall