The A19PX or 531 is an unusual cell often used in older Polaroid cameras. It
is a cylindrical battery with one mini snap connectors at each end (the same
size of mini snap found in the popular 9Volt PP3 battery).
The older Polaroid cameras models: 100, 101, 102, 220, 225, 230, 240, 250, and
340 use one PX19 or No. 531 (4.5 volt) alkaline battery.
• Type: Alkaline.
• Voltage: 4.5 V.
• Diameter: 16.8 mm.
• Height: 58.3 mm.
Also known as: V19PX / 531 / RPX19 / A19PX / EPX19 / 3LR50 / 1307AP.
