Efficiency breakthrough could double smartphone battery life

Efficiency breakthrough could double smartphone battery lifeOne of the classic bugbears with smartphones is battery life, and most manufacturers - disappointingly - seem more concerned with making things thin and light. Give us more juice!

However, there’s been a bit of a breakthrough that could hypothetically see smartphone battery life as much as double within a few years. Hurray!

The good news is reported over on Technology Review, and we have a Cambridge, Massachusetts-based “MIT spinout company” to thank.

Eta Devices was cofounded by MIT electrical engineering professors Joel Dawson and David Perreault, and they’re reportedly onto something potentially huge by way of a new amplifier design. Eta calls the technology “asymmetric multilevel outphasing”.

The technology is expected to reach commercialisation next year, and will make its debut in power-hungry LTE base stations.

If it proves successful, a smaller scale version of the technology could make its way to smartphones, and threatens to double battery life. Oh baby.

“There really has been no significant advance in this area for years,” says Vanu boss Vanu Bose (you heard me). “If you get 30 to 35 percent efficiency with today’s amplifiers, you are doing really well. But they can more than double that.”

Charging just once every couple of days? That sounds like the kind of future I want to be a part of.

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4 comments

Pondlife  Nov. 2, 2012 at 18:17

Can see how it could reduce the battery usage on one area but not how that would be so significant overall.

Reading the link it's more useful for light usage, it wouldn't help heavy users so much.

JanSt / MOD  Nov. 2, 2012 at 18:30

it sounds like the future? more like the recent past :p
Get a Note 2. Or a Motorola

Pondlife  Nov. 2, 2012 at 20:25

Or a dumbphone and a ipod touch...

matt101101 / MOD  Nov. 2, 2012 at 22:21

Or a dumbphone and a ipod touch...
I can vouch for an iPod Touch being a great way of making, even an S2 with a wrecked battery, last all day.

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