Pilas 9V Recargables

The nine volt battery is a commonly available battery that is often used for smoke detectors. Identified by its rectangle shape, the 9 volt battery has a snap in connector, which can be convenient for linking several nine-volt batteries in a series, if necessary.

Although there is a common size for 9-volt batteries, there are size variations available, such as PP3 and PP9, allowing for hi...