5 Feb
2009
5 Feb
'09
2:33 p.m.
On Thu, Feb 5, 2009 at 5:00 PM, Roy J. Tellason <rtellason at verizon.net> wrote:
On Wednesday 04 February 2009 01:51:59 pm Ethan Dicks
wrote:
Yes.
Hi, All,
The topic of replacement batteries came up in the Yahoo Group
for the RB5X, and someone posted a link for 2 volt 2.5 Amp-hour
cells...
<http://www.batteryweb.com/hawkersla-detail.cfm?Model=0810-0004&label=singl
ecell>
I saw the image and immediately thought of my NLS portable oscilloscope.
I'd love to refurb mine, but $45 in batteries is a little on the high
side for me.
Are we talking about more or less standard gel cells? The 2V terminal voltage
would seem to indicate so. Those are *very* standardized, in terms of similar
sizes being offered by a
great many different manufacturers. When I was doing the retail battery
thing some years back (roughly 1993-5), we carried PowerSonic and one other
brand I'm not remembering at the moment, and the sizes for similar
capacities was a pretty good match for the Panasonic units listed in the
Digi-Key catalog. Folks would come in with all sorts of other units and I
was usually able to match them up with something that would fit.
I'm not concerned about specific vendors - just D-sized (to fit the
enclosure) with solder-tabs.
I've never seen single cells, but we did have
some 4V units which were only
two cells.
My NLS has 3 single cells, bonded together, IIRC. I would be happy to
solder up loose cells.
Capacity in any given size of box seems to gradually
increase over time. I've
seen 6, 6.5, and 7AH in exactly the same size container, for example.
Capactity isn't really a show-stopper for the oscilloscope, but I
think I do need good batteries in there to function, even when plugged
in.
Shipping is going to be the worst of it. I'd find
some national chain
convenient to you (Batteries Plus being an example) and then see if you can
get them to order what you need, and it won't cost you for shipping at all.
I can certainly start there. There's one nearby, and I have a target
price of $7 each (ex. S&H)
-ethan