Additional iPhone 4 battery power has always been a worry for Apple smartphone owners. Numerous companies are trying to find ways to set their accessories apart in ways other than just iPhone 4 battery capacity. The SwitchBack Surge iPhone 4 battery case is one those products with a dual-functionality.

Different from many other iPhone 4 battery, SwitchBack Surge is original and authentic, utilizng a twist on the regular slider-style case. This piece of accessory is made of sturdy and shiny black plastic. On the rear side of the iPhone 4 battery pack is a exchangeable plate, metallic silver and black solutions are included, that serves as a kind of protection. Beneath is a key that releases the top slider portion of the iPhone 4 battery case. The smartphone glides right into place. All of the custom openings and cut-outs are there, even though there is no key protection. Rounded openings along the front let you access the speaker and mic.

Besides the four illuminating iPhone 4 battery LED lights and a key to track the status on the back of the unit, the bottom has a micro USB port and a on / off switch. Original is the fold-out stand on the rear side. It sits flat while not in use, and functions in a pretty wide scope of landscape viewing mode angles. While the stand seems kind of fragile, it does keep the mobile phone safely in place, and the additional feature comes in handy, too, mostly because it does not add much volume.The size of the iPhone 4 battery case is akin to other similar products. It is just as stocky, even though a little bit wider and a bit shorter. SwitchBack Surge is also a bit lighter. Rendition from the 1800mAh iPhone 4 battery is just about what the company claims: in a little over an hour, the smartphone takes a 75% charge before the iPhone 4 battery is drained. The manufacturer states that the cell will bring the smartphone up to 80%, witch is very much true.




                                                            


The most interesting and useful feature of the iPhone 4 battery case is the company's free free “reVIVE” application, carried by Scosche as handy for controlling the iPhone 4 battery power. The application turns out to be a bit more than an approximating calculator of how many hours remain for your phone’s current iPhone 4 battery life, and how long it will take to fully charged after being hooked up to a power source. It does not even use the accuracy remaining iPhone 4 battery percentage number supplied by the mobile phone, instead rounding up or down in 5% increments. Among other similar battery packs for iPhone 4, Scosche's SwitchBack Surge is one of the best, which makes it easy to recommend.