HP Forum Archive 20

[ Return to Index | Top of Index ]

HP-67 battery question Message #1 Posted by Csaba Tizedes (Hungary) on 5 May 2011, 5:22 a.m. I have a "new" HP-67 without charger and dead battery pack. It is possible to insert new AA batteries to testing unit or this will be cause irreversible malfunction?

Re: HP-67 battery question Message #2 Posted by John Robinson on 5 May 2011, 6:56 a.m., in response to message #1 by Csaba Tizedes (Hungary) I've certainly used 3 x alkaline AA batteries to power a 65 with no problem, so I am pretty certain the 67 will be fine too. The DC-DC converter inside the calculator should regulate the voltage(s) to the required level(s) anyway. Cheers, John

Re: HP-67 battery question Message #3 Posted by Csaba Tizedes (Hungary) on 5 May 2011, 8:57 a.m., in response to message #2 by John Robinson Thank you! I'll try to something similar, I think! Maybe you're know the answer to my second problem: It is possible to use higher capacity accumulators than originally installed by HP with factory charger? What will cause when I'll use it?

Re: HP-67 battery question Message #4 Posted by sylvandb on 5 May 2011, 6:33 p.m., in response to message #3 by Csaba Tizedes (Hungary) Quote: Maybe you're know the answer to my second problem: It is possible to use higher capacity accumulators than originally installed by HP with factory charger? What will cause when I'll use it? I have 1100mAh NiMH cells in my 67. They charge just fine with the factory charger. Takes a long time tho. I would not use alkaline. I would use NiCd or NiMH cells charged in an external charger before I used alkaline.

[ Return to Index | Top of Index ]

Go back to the main exhibit hall