The battery life for most devices is one and a half to two years. If your phone is no longer holding a charge, chances are you need to replace the battery. On most older devices the battery can easily be replaced by removing the back of the phone. Most newer phones, Apple and Android phones require the device to be disassembled and the new battery installed. Either way, the professionals at Mobile Madness can have you fixed up in no time at all, offering a ONE YEAR WARRANTY on all battery replacements.