Energizer Hardcase H501S official Pictures. Energizer Hardcase H501S is a Smartphone of energizer. The Energizer Hardcase H501S Android Smartphone. Announced Feb 2019. Features 5.0″ Display, MT6739 Chipset, 2500 MAh Battery, 16 GB Storage, 2 GB RAM, Panda Glass. Energizer Hardcase H501S price starts.