Do the "shake to charge your battery" apps for cell phones really work? if so, how?
It's for an samsung galaxy prevail phone
I do not think the Shake to Charge Your Battery apps for cell phones really work. The apps are generally created for fun purposes only. However, the solar panel battery charger apps are real and workable. You only need to shake the phone for extra fast charging. See: http://download.cnet.com/Shake-to-Charge-Battery/3000-2094_4-12504829.html.
No its just for tricking your friends otherwise known as an Entertainment App
www.twitcy.com/fastcharge.html - I wrote this app and can absolutely guarantee 100% that it does not charge your phone, if it did I'd charge a lot more for it :)