It’s always irritating to dig up a bunch of half-used batteries in the drawer and not be sure which ones are usable. Duracell has probably been listening to a bunch of complaints from users, and came up with the Duracell Ultra Advanced with POWERCHECK battery, capable of letting you know just how much power is left in the thing when you press the 2 white dots simultaneously. The technology itself is nothing new, but it’s great to see it integrated into the battery now. Full press release can be found here.