Quote: (Originally Posted by
jradomski)

The LST cells will perform much better than aa alkaline cells (especially in cold water) but about 50% of the LS cells... out of my LS cells I normally expect 30-40 hours of dive time (mix of auto and manual) on the primary, I would assume the lst cells should give you 15 or so hours of dive time (a bit better in warm water)..
If there is that much difference I find it a bit odd that Dive Rite sells (promotes) the LST cells for the Optima? Seems odd given there doesn't seem to be much of a price difference LS vs LST, or something like that to merit it?
Or is the LST perhaps the more commonly used and avaliable version of the cell in general?