Anyone have a line on batteries for the NLS portable oscilloscope?
ethan.dicks at gmail.com
Thu Feb 5 16:33:28 CST 2009
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:
>> 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
>> 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
> 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)
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