<P> Batteries designed for use inside a portable uninterruptable power supply (UPS) typically use Faston tabs, often with an adapter cable between those and the UPS's internal battery connectors . Larger external battery packs use a variety of connectors, including the Anderson Powerpole MultiPole series (as used by Tripp Lite), which are color - coded and keyed for specific voltages . Very large batteries as installed in battery rooms such as are found in datacenters use bolted connections from cell terminals to bus bars or flexible cables . </P> <P> Most cylindrical dry batteries (such as the AA battery) have a projection at one end (positive) and a flat base (negative). These mate with metal strips or springs in the battery holder . </P> <P> Six volt lantern batteries typically feature two coiled, cone - shaped spring terminals, designed to mate with flat contact plates on the inside of the battery compartment . Some lantern batteries instead feature screw terminals, while still others instead feature pin holes . </P> <P> Nine - volt batteries have snap - on connectors . </P>

Which terminal has the larger diameter on a standard car battery