I can't initiate a post so I'm taking this opportunity to tag one on here.
 
I use both the Janty Kiss Box and the 801.  The KB batteries will fit the 801 charger if I leave the switch on the battery.  Is there any reason to not do this?  They seem to charge but I'm not sure I understand how the charger works through the presumably open switch.  And I'm not sure the charge is full.
 
Thanks,
Wally