I've never
seen single cells, but we did have some 4V units which were
only two cells.
Gates was a major provider of the single 2V cell in the "D" size with tabs
on one end.
Yeah, I'd remembered that a bit later on...
My stint in the battery retail store biz went from January of 1993 to October
of 1995, so I'm a bit fuzzy about recalling some of those details these
days. :-)
NLS used three of them but a 6V monolythic battery
with the same outer
dimensions will also work fine as the tabs soldered to the rear board for
mounting and to create a series connection.
The ones they make with multiple cells in a plastic case have a flat top
that's rectangular in cross-section and that might be an issue, depending on
the housing. A quick google gets me to this page:
http://www.batteryprice.com/0819-00126v25ahcyclonleadacidbattery.aspx
where there's a picture of one, what they're calling a "0819-0012 6v 2.5Ah
Cyclon Lead Acid Battery". Not a bad price at $15.70, either, if it'll
fit. The individual D sized cells are here:
http://www.batteryprice.com/0810-0004cyclonbattery.aspx
at $7.90 each, not terrific but not too terrible either.
The only reason batteries are needed to run the NLS is
the charger is way
too small run run it directly.
Interesting...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin