Energizer Power Max P490 official Pictures. Energizer Power Max P490 is a Smartphone of energizer. The Energizer Power Max P490 Android Smartphone. Announced Jun 2018. Features 4.95″ Display MT6580M Chipset Dual: 8 MP Primary Camera Dual: 5 MP Front Camera 4000 MAh Battery 8 GB Storage 1000 MB RAM. Energizer Power Max P490 price starts.