The local BatteriesPlus store rebuilt my 105B pack for about $150 - there was quite a bit of extra labor involved but the pack is completely to spec except it has more capacity than original
On Fri, Jan 5, 2018 at 12:17 PM, Van Horn, David <david.vanh...@backcountryaccess.com> wrote: > > Nicads are still made. > > NIMH is not necessarily a drop in. While it will work fine in the short term, > crude chargers that implement constant trickle like C/10 can be (emphasis) > tolerated (/emphasis) by some NIMH cells, and totally out of spec for others. > > Modern chargers and NIMH is a good pairing, but if you must use the original > NICAD charger, you likely need real NICADs for a long term solution. > > > -----Original Message----- > From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of paul swed > Sent: Friday, January 5, 2018 10:00 AM > To: Ulf Kylenfall; Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] HP 105B: Modern replacement for NiCad battery pack? > > Ulf > A drop in replacement for nicads is nickle metal hydride or NiMh. Nicads are > still available but can be expensive. > The other comment I would make is the 1970s charging circuits were pretty > crude and lead to boiled batteries. > If your going to invest in an internal battery you may want to consider a > smarter modern charger. > There seems to be all sorts of very nice boards out of China for little cost. > Its amazing. > If you go the alternate approach you may consider Lithium batteries. > Drones seemed to have made a very nice market for batteries and smart > chargers. > Regards > Paul > WB8TSL > > On Fri, Jan 5, 2018 at 11:46 AM, Ulf Kylenfall via time-nuts < > time-nuts@febo.com> wrote: > >> >> Gentlemen, >> I may have asked this question before... >> I am looking for a modern replacement for the NiCadbattery pack used >> in the HP 105B. One such 105that I salvaged have been standing on a >> shelf with thebatteries "happily boiling away". >> So, what kind of chemistry would be possible to usewithout to much >> re-design of the charging circuitry? >> Ulf Kylenfall >> SM6GXV >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to >> https://www.febo.com/cgi-bin/ mailman/listinfo/time-nuts and follow >> the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
