Energizer Hardcase H550S official Pictures. Energizer Hardcase H550S is a Smartphone of energizer. The Energizer Hardcase H550S Android Smartphone. Announced Jan 2018. Features 5.5″ Display MT6750 Chipset 16 MP Primary Camera 8 MP Front Camera 4000 MAh Battery 32 GB Storage 3 GB RAM MIL-STD-810G Compliant Corning Gorilla Glass 3. Energizer Hardcase H550S price starts.