Avenue "A" was for assault, "B" was for battery, "C" was for coma and "D" was for death.

VOA: special.2009.04.27

What really bewildered us was the lens continuously auto-focusing while the camera remained stationary -- that couldn't be good for the battery, and we'd like to see how battery life fares in upcoming reviews.

ENGADGET: Sony Alpha A390 and A290 DSLRs hands-on Hands-on

Each submunition is the size of a D-cell battery with a distinctive white ribbon, and the design of their fuze system makes each one very sensitive and liable to detonate if disturbed.

CNN: The gruesome toll of deadly cluster bombs in Syria

But if you wanted to play Real Racing HD on your iPad for a month straight or drive your Tesla from Seattle to Miami on a single charge, you'd need a battery the size of a freight train.

FORBES