Features:

• lasts up to 7 times longer than alkalines with digital cameras
• weighs 1/3 less than alkalines
• operating temperatures: -40° to 140°
• shelf life of up to 15 years

Editor Reviews:

Product Description:
lasts up to 7 times longer than alkalines with digital cameras * weighs 1/3 less than alkalines * operating temperatures: -40° to 140° * shelf life of up to 15 years *

Rating : - Top Rated in Consumer Reports
Very pricey (Amazon beats Wal-Mart hands-down), but they last the longest of any battery source. Consumer's just reviewed batteries for power-hungry digital cameras and confirmed same. I use 'em in my battery-eating HeadRoom Super Bithead portable headphone amp (4-AAA) along with my iPod Classic and Shure SE-530PTT music rig, and they outlast multiple sets of Duracell copper-top and Energizer Max alkalines. I carry an extra set in my computer bag so i'm never without my tunes! LOL!