8 Best Battery Saver Apps For Your Smartphone

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8 Best Battery Saver Apps For Your Smartphone | ZoomZum

 

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A battery one-tenth the size with the same power...

Super-powered battery breakthrough claimed by US team
17 April 2013 : A new type of battery has been developed which its creators say could revolutionise the way we power consumer electronics and vehicles.

The University of Illinois team says its use of 3D-electrodes allows it to build "microbatteries" that are many times smaller than commercially available options, or the same size and many times more powerful. It adds they can be recharged 1,000 times faster than competing tech. However, safety issues still remain. Details of the research are published in the journal Nature Communications.

Battery breakthrough

The researchers said their innovation should help address the issue that while smartphones and other gadgets have benefited from miniaturised electronics, battery advances have failed to pace. Batteries work by having two components - called electrodes - where chemical reactions occur. In simple terms, the anode is the electrode which releases electrons as a result of a chemical reaction. The cathode is the electrode on the other side of the battery to which the electrons want to flow and be absorbed - but a third element, the electrolyte, blocks them from travelling directly. When the battery is plugged into a device the electrons can flow through its circuits making the journey from one electrode to the other.

Researchers claim their technology could shrink the size of batteries by 10 times while offering the same power

The scientists' "breakthrough" involved finding a new way to integrate the anode and cathode at the microscale. "The battery electrodes have small intertwined fingers that reach into each other," project leader Prof William King told the BBC. "That does a couple of things. It allows us to make the battery have a very high surface area even though the overall battery volume is extremely small. "And it gets the two halves of the battery very close together so the ions and electrons do not have far to flow. "Because we're reduced the flowing distance of the ions and electrons we can get the energy out much faster."

Repeatable technique

 

[Mr. H.]

An and Cath Ode.
They're related aren't they?

 

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Granny uses a flip-phone dat can't do dat...

Seven in ten smartphone apps share your data with third-party services, research says
Friday 9th June, 2017 - Our mobile phones can reveal a lot about ourselves: where we live and work; who our family, friends and acquaintances are; how (and even what) we communicate with them; and our personal habits. With all the information stored on them, it isn’t surprising that mobile device users take steps to protect their privacy, like using PINs or passcodes to unlock their phones.

The research that we and our colleagues are doing identifies and explores a significant threat that most people miss: More than 70 percent of smartphone apps are reporting personal data to third-party tracking companies like Google Analytics, the Facebook Graph API or Crashlytics. When people install a new Android or iOS app, it asks the user’s permission before accessing personal information. Generally speaking, this is positive.

Social media network concept on phone.​

And some of the information these apps are collecting are necessary for them to work properly: A map app wouldn’t be nearly as useful if it couldn’t use GPS data to get a location. But once an app has permission to collect that information, it can share your data with anyone the app’s developer wants to – letting third-party companies track where you are, how fast you’re moving and what you’re doing.

The help, and hazard, of code libraries

An app doesn’t just collect data to use on the phone itself. Mapping apps, for example, send your location to a server run by the app’s developer to calculate directions from where you are to a desired destination. The app can send data elsewhere, too. As with websites, many mobile apps are written by combining various functions, precoded by other developers and companies, in what are called third-party libraries. These libraries help developers track user engagement, connect with social media and earn money by displaying ads and other features, without having to write them from scratch.

However, in addition to their valuable help, most libraries also collect sensitive data and send it to their online servers – or to another company altogether. Successful library authors may be able to develop detailed digital profiles of users. For example, a person might give one app permission to know their location, and another app access to their contacts. These are initially separate permissions, one to each app. But if both apps used the same third-party library and shared different pieces of information, the library’s developer could link the pieces together. Users would never know, because apps aren’t required to tell users what software libraries they use. And only very few apps make public their policies on user privacy; if they do, it’s usually in long legal documents a regular person won’t read, much less understand.

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