Adding the PowerSkin Extended Battery Case made specifically for the S4, has not only made my battery last all day (and I do mean ALL DAY) but it protects my phone with the silicone case. Unfortunately, my phone has been dropped several times; yes, I'm blaming the 4-year-old. I'm pleased to report that my phone has survived unscathed; no dents, scratches or cracks.
The PowerSkin Extended Battery Case feels great in my hand. The silicone outer layer is not just soft but durable too.
The PowerSkin has a 1600mAh integrated battery. The case is longer than the Samsung Galaxy S4 phone itself because the battery is built-in to the case. Adding the PowerSkin gives me an additional four and half hours of talk time. Not just the extra talk time, but days where I don't use my phone much I have an additional 100 HOURS of standby time. This is truly a smart case. The smart case uses my Galaxy S4 battery first, ones that is depleted I can switch over to my case battery. No having to plug it in anywhere for power.
Once you insert your phone into the charged case there are 4 LED status lights that will light up when you push the button, this will let you know how much battery is left in the case. What an awesome feature that is. The LED lights on the case will also flash when the cash is being charged. I want to note that the case doesn't include a USB cable. You will need a micro USB cable to charge your case.
The case also looks nice in the shiny black, the cut out don't obscure the camera window and doesn't interfere with the control buttons. The case also doesn't add any bulk to the phone, just a little added length.
Adding the PowerSkin to my S4 has me loving my phone again.