Researchers Find Way to Extend Battery Life

At some point in your life, you may have replaced your old cell phone because its battery didn’t last long, leaving you empty whenever you needed to use your phone the most. Well, U.S. scientists revealed some crucial information that may help batteries last longer.

Scientists from the University of Michigan said that mobile phones that are in power-saving mode and not actively sending or receiving files or messages still use battery power for searching communication channels and anticipating incoming information. This is vital information that cell phone companies do not tell their subscribers.

According to the researchers, a new “subconscious mode” for phones and other Wi-Fi enabled mobile units can help extend the life of the battery by 54 per cent. They also added that phones in idle mode spend almost the same amount of power as when they are active. Professor Kang Shin, a UM computer science and engineering mentor, and doctoral student Xinyu Zhang further expounded that the new power-management technique can make cell phones perform idle listening more efficiently.

Energy-minimizing Idle Listening strategy slows down the Wi-Fi hardware clock by 1/16 of the normal frequency, but it gets back to full speed when the cell phone notices information coming into it. Shin stressed out that the challenge in this is how to get the phone in recognizing incoming messages while it is in slower mode.

“We came up with a clever idea,” Shin said. “Usually, messages come with a header, and we thought the phone could be enabled to detect this, as you can recognize that someone is calling your name even if you’re 90 percent asleep.”

No word on when exactly we could see this on the market.


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