WeinCell Replacement Battery MRB400 (1.35v, Zinc-Air)

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WeinCell 1.35 volt mercury replacement button cell as used in many older 35mm slr cameras. Ideal replacement for batteries including the Z400PX, PX400, EPX400, RM400, RM400R and V400PX.

  • Replaces RM440R and V400PX for Pentax cameras
  • Voltage output more stable than alkaline replacements
  • No camera adjustment needed
  • Wein Cell batteries are not activated until the pull-tab is removed (Remove tab at least 30 minutes prior to use.)
  • Environmentally Safe

Compatible with the following Pentax Cameras:

  • Pentax Spotmatic I
  • Pentax Spotmatic II
  • Pentax Spotmatic IIA
  • Pentax SP500
  • Pentax SP1000.