Exell MRB400 1.35V Zinc Air Battery Z400PX PX400 EPX400 RM400 The PX400 is is a discontinued Mercuric Oxide coin type cell that was commonly used in cameras and is now banned because of toxicity and environmental fears. The original PX400 mercury cell produced 1.35V.There are two possible Compatible Withs for this PX400 cell:the equivalent silver oxide cell, the S400PX.the equivalent zinc air cell, the WeinCELL MRB400.There are no alkaline cells manufactured of this size and shape.SpecificationsType: Zinc Air Voltage: 1.35VDiameter: 11.2 mmHeight: 3.6 mm The S400PX cells produce 1.55V which is different from the 1.35V produced by the original PX400 mercury.
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