9-volt battery
Snap-top power cell
A 9-volt battery is a small rectangular battery with two snap connectors on top, commonly used in smoke detectors, guitar pedals, and portable radios.
Its distinctive shape makes it easy to connect and disconnect.
Unlike cylindrical batteries (AA, AAA), the 9-volt packs more voltage in a compact form: The smoke detector started chirping—time to replace the 9-volt.
- alkalineHaving high pH
- transistorSemiconductor signal switch
- radioElectromagnetic wave receiver
- smoke detectorCombustion particle sensor
- fire alarmEmergency heat warning device
guitar pedal · snap · terminal · rectangular · Duracell · Energizer · connector · power · portable · electronics · clip · multimeter · drawer · junk drawer · junk · dead · replace · leak
- batteriesAAAA, D cell, C, D, AA
- portable energypower bank, solar charger, coin cell, USB charger, car charger
- fire alarmssmoke detector, smoke alarm, fire alarm, heat detector, fire bell