So a team at the University of Limerick in Ireland evolved new signal-timing patterns that minimise the build-up of the disabling charge.

ECONOMIST: Monitor

Our standard battery rundown test involves setting the brightness and volume to half, using 4G in a 75 percent or better signal area, enabling GPS and WiFi (not connected) and disabling Bluetooth while looping a video from a full charge until the battery is drained.

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Instead of quickly sending out a signal to disable pirated access cards, DirecTV management waited for the company's weekly disabling blast.

FORBES: Magazine Article