PP1: This battery type was 6 volts and had 2 snap connectors. They were spaced 35.0 mm apart. It is an Exide Drymax.

PP4: This battery was the only cylindrical PP battery. The type was 9 volts and had 2 snap connectors, one on the top and one on the bottom H 50.0 Diameter: 25.5

PP6: This battery type was 9 volts and had 2 snap connectors. Centre distance between terminals is max 12.95 mm with both offset 7 mm nominal from the wider battery edge.

H 70.0 mm L 36.0 mm

W 34.5 mm

PP7: This battery type was 9 volts and had 2 snap connectors. Centre distance between terminals is max 19.2 mm.

H 63 mm

L 46 mm

W 46 mm

PP8: This battery type was 6 volts and had 2 snap connectors. This battery typically had 2 snap connectors, however 4 connector versions are available. They were spaced 35.0 mm apart.

H 200.8 L 65.1 W 51.6

PP9: This battery type was 9 volts and had 2 snap connectors. They were spaced 35.0 mm apart. It is a GP version and as such is slightly smaller then a "standardised" PP9.

H 81.0 L 66.0 W 52.0

PP10: This battery had 2 pin connectors. They were a single ⌀3.2 mm negative pin and a single ⌀4.0 mm positive pin spaced 13.0 mm apart.

H 226.0 L 66.0 W 66.0

PP11: This battery had 4 pin connectors. 9V was available by wiring in series.

There were two ⌀3.2 mm negative pins spaced 9.5 mm apart and two ⌀4.0 mm positive pins spaced 14.3 mm apart.

Negative and positive pins were spaced 18.1 mm apart.

H 91.3 L 65.1 W 52.4

PP3: Commonly used today.

Goes by many names: Radio battery, Smoke alarm battery, Square battery, Transistor battery, 6LR61, 6F22, 1604

Added to ANSI standard in 1959 Often contains six LR61 cells, which are similar to and often interchangeable with AAAA cells.

H: 48.5 L: 26.5 W: 17.5