[time-nuts] HP-105B Battery Replacement?

David G. McGaw david.g.mcgaw at dartmouth.edu
Thu Sep 15 01:02:52 EDT 2016


NiMH batteries are close the same voltage and charge the same as NiCd 
and are more available and not toxic when disposing of them. They should 
be a good replacement.  Lithiums are very different in voltage and charging.

David N1HAC

On 9/14/16 10:19 PM, Jeremy Nichols wrote:
> Thanks, Brooke, I'll price new Ni-Cads. I wasn't thinking of lead-acid (gel
> cells) but rather lithium rechargeable, providing I can find a type that
> won't catch fire and will work with the 105B'scircuits.
>
> Jeremy
>
>
> On Wednesday, September 14, 2016, Brooke Clarke <brooke at pacific.net> wrote:
>
>> Hi Alex:
>>
>> Yes, I'm recommending Ni-Cad but NOT any acid type.
>>
>> --
>> Have Fun,
>>
>> Brooke Clarke
>> http://www.PRC68.com
>> http://www.end2partygovernment.com/2012Issues.html
>> The lesser of evils is still evil.
>>
>> -------- Original Message --------
>>
>>> Hi Brooke,
>>>
>>> sorry I have to disappoint you; Ni-Cd batteries do not use any acid, they
>>> have K-OH  kalium hidrioxid  [potassium hydroxide  for anglophone ] as
>>> electrolyte and they are normally very air-tide, and widely used in radios.
>>>
>>> 73
>>>
>>> KJ6UHN
>>>
>>> Alex
>>>
>>> On 9/14/2016 4:45 PM, Brooke Clarke wrote:
>>>
>>>> Hi Jeremy:
>>>>
>>>> It's a very bad idea to put any battery with acid in an enclosure that
>>>> has electronics since if it vents the acid will etch the PCBs.
>>>> Guess how I learned this.  I got a great price on a Gibbs Frequency
>>>> Standard because the oven no longer worked.
>>>> http://prc68.com/I/office_equip.html
>>>>
>>>>
>>>> Modern Ni-Cad batteries have much more capacity than older ones and no
>>>> longer have a memory effect.  They are also very easy to charge, so why not
>>>> just replace the old cells?
>>>>
>>>>
>>> _______________________________________________
>>> time-nuts mailing list -- time-nuts at febo.com
>>> To unsubscribe, go to https://www.febo.com/cgi-bin/m
>>> ailman/listinfo/time-nuts
>>> and follow the instructions there.
>>>
>>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/m
>> ailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>




More information about the time-nuts mailing list