Modlite 18350 1600mAh Protected Cell (2 PACK)

Were bought because same size and voltage as needed for cordless screwdriver. Installed and charged for 60 minute. Screwdriver still doesn't work. Check batteries, one 3.6V, other -.7V Batteries were tack welded, not soldered. Charger is 8V 1A

Great batteries. They charge quickly and drain appropriately and predictably.

So far so good!