+1 on the La Crosse BC-900. Refreshed my 3 year old Energizer 2300 maH NIMHs nicely. Also comes with C- and D-size adapters. Rechargeable hybrids are nice for their ability to retain charge long term, good for devices sitting around unused for awhile, like digital cameras. Currently limited to 2000 maH and more expensive than regular NIMHs.