Philips Minicells Battery 357/97, Single-use battery, Silver-Oxide (S), 1.55 V, 160 mAh, Cd (cadmium), Hg (mercury), Pb (lead), Blister Philips Minicells Battery 357/97. Battery type: Single-use battery, Battery technology: Silver-Oxide (S), Battery voltage: 1.55 V. Package type: Blister. Battery form factor: Button/coin, Chemical composition: Silver Oxide, Packaging material: Carton, PET