>
 > It is, perhaps, a stupid question; and I'm familiar with 3 volt lithiums.  What
I'm attempting to get at, more precisely, is 
there
   anything
special about the Mn02-Li's that I need to know about? 
 YEs, don't recharge them. They _will_ explode.
 
 Thanks.  I thought the difference, if there were one, might be that the MnO2s were
the rechargeable type.
-W