531 / PX19 / V19PX / A19PX 4.5 Volt Alkaline Battery
Excellent battery, works great. Chose the cheapest shipping which said it would be a couple of weeks and it was here in two days.
I was looking for a battery to fit a mid-70s(ish) Polaroid camera I found.... Battery worked great....
This came quickly, and worked perfectly for the old polaroid I ordered it for. Easy process, good price.
Battery Mart had this battery for my Polaroid Automatic 340 Camera. Perfect fit; arrived in (3) days with standard shipping.
Camera works like it did when new in 1969.
I have Polaroid 420 and 230 Land Cameras and these 531 batteries make them work like it's 1969 again. Saves me having to wire the old cameras for AAA, and keeps them original. Battery Mart had a great price and easy shipping.