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WASHINGTON, DC (WUSA) -- It's the time of year when you'll need plenty of batteries on hand to power up all of those new toys and other devices.

Consumer Reportstested 15 kinds of double A lithium and alkaline batteries on a test rack to measure just how long they'd last in flashlights and digital cameras.

The Toys R Us Ultra alkalines delivered just four hours of flashlight time and 49 shots for a digital camera.

Top AA Batteries

But, the Energizer Ultimate Lithium rated tops for these devices.

And, for toys that are used less often, the Duracell Quantum proved the best alkaline at half the price.