This external power bank and integrated case for Samsung Galaxy S4 is an ideal and powerful companion for your endeared Galaxy S4. It acts both as a protective case and also as an excellent external battery pack. The potent built-in 3000 mAh lithium-ion polymer battery can be engaged using the On/Off switch button at your will and it is able to provide additional talk time and stand time for your Galaxy S4. There are two ways to charge the case - You can use the included micro USB cable to charge this device or exposing the solar panel in the back to DIRECT SUNLIGHT to charge the device. It works like a regular port and can sync and charge with computer or AC adapter. As with any solar chargers, it will take some time to charge the device under direct sunlight. The case is stylish and portable with black non-slip finish and has been designed so that you can use the Galaxy S4's camera without removing the case. Please make sure to charge the battery case for at least 8 Hours before first use to achieve maximum performance. Specs: High efficiency Solar Panel: 5.5V/220mA Lithium polymer Battery: 3.7V/ 3,000mAh Input: 5V/1A Output: 5V/2A Self-charging time: 8 hrs (by laptop); 4 hrs (by 5V/1A travel charger); 15-17 hrs (via solar panel, under full sunlight condition) Power display: 4 LED indicators On/off button: Press to start charging Size: 2.87in x 5.71in x 0.71in Weight: 2.64oz
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