[volt-nuts] Fluke 735C - Information Needed

[GandalfG8 at aol.com]

Ah well, I think that probably settles it then:-)
 
 
In a message dated 10/09/2013 15:17:16 GMT Daylight Time, jltran at att.net  
writes:

Nigel,

All help appreciated.  I never knew about SLA  batteries in a 1/2 D size
looking like NiCd's.  I have seen 'packaged'  cylindrical SLA's as used in
the battery option HP 5315A but they are much  bigger than a 'D' cell.

The cells certainly look like NiCd based on the  'corrosion' and 'exudate'
they produced.  I have never seen an SLA do  that.

In addition, they clearly say 'RECHARGEABLE NICKEL-CADMIUM  BATTERY' in all
caps, bold letters next to the 'GE'  trademark.

Thanks again.

Joe



-----Original  Message-----
From: volt-nuts-bounces at febo.com  [mailto:volt-nuts-bounces at febo.com] On
Behalf Of GandalfG8 at aol.com
Sent:  Tuesday, September 10, 2013 8:54 AM
To: volt-nuts at febo.com
Subject: Re:  [volt-nuts] Fluke 735C - Information Needed

Not wanting to labour the  point, but just to be sure as I don't recognise
that part number, in the  80s GE did make cylindrical sealed lead  acid 
cells
under the brand  name "Cyclon" and these looked very similar  to Ni-Cads.

If the  cells themselves aren't clearly marked one obvious check is the
charging  circuit, basically constant voltage for lead acid and  constant
currrent  for  Ni-Cad.

Regards

Nigel
GM8PZR


In a message dated  10/09/2013 13:42:27 GMT Daylight Time,  jltran at att.net
writes:

Charles,

The NiCd pack (of five  'units', side by side, with  each 'unit' being two
1/2
D cells  stacked on top of each other) is 12 V 2.2  AH,  GE Cat. No.  JF
479147
8249.  I suspect the '8249' is a date  code and they  look original.  The 
Cal
date was also Feb 82.

I  found 1.2  V 2.5 AH 1/2 D cells for $5.50 ea. On the internet.  I   would
like to find a cheaper source since I need 20 of them, enough for two  
packs,
one pack on each side of the Battery PCB.  I'll also need  some  'thin' heat
shrink tubing to go around the 2 cell  'units'.

I could  also use some 'spare' 1/2 D cells for the  battery packs in my
5061A's and  B's.

I wonder what would be  better, SLA or NiCd's?  The NiCd's had  'spewed' and
corroded the  PCB a bit but I have that cleaned up.  I  have seen SLA's  (in
UPS's) 'shrivel' and get very hot as they  die.

I'll have  to take a look at the 732A manual to see what it's   battery
construction looks like.

Joe

-----Original   Message-----
From: volt-nuts-bounces at febo.com   [mailto:volt-nuts-bounces at febo.com] On
Behalf Of Charles  Steinmetz
Sent:  Monday, September 09, 2013 11:10 PM
To: Discussion  of precise voltage  measurement
Subject: Re: [volt-nuts] Fluke 735C -  Information  Needed

Joe wrote:

>I need to fabricate a  couple of 12 V NiCd  battery packs using 1/2 D 
>cells

Does  it have NiCds now?   If so, do they look original?  The 732A  uses SLA
batteries (originally  4x 6v, but most folks replace them  with 2x 12v).  If
it has SLAs or  gel cells (or originally did),  you should replace them with
the same so the  charger works  properly.

Best   regards,

Charles



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