9-volt

Smoke detector's heart

A 9-volt is a rectangular battery with two snap connectors on top, commonly used in smoke detectors, guitar pedals, and portable radios.

The distinctive shape makes it easy to identify: I need to replace the 9-volt in the smoke alarm.

Unlike cylindrical batteries, 9-volts stand upright and connect by snapping onto a terminal clip.

battery

alkaline

Having high pH

rectangularFour right angles
snapSudden sharp sound
connectorThing that joins others

terminals · Duracell · Energizer · disposable · transistor · lithium · cell · power source · anode · cathode

devices

smoke detector

Combustion particle sensor

guitar pedalFoot-switched audio processor
multimeterCombined electrical measuring device
transistor radioCompact semiconductor-based broadcast receiver

effects pedal · alarm · remote control · walkie-talkie · stud finder · metal detector · toy · keyboard · metronome · intercom

electronics

circuit

Closed electrical pathway

breadboardSolderless circuit-building platform
LEDSemiconductor that glows
resistorCurrent-limiting circuit element

capacitor · Arduino · soldering · wiring · current · amplifier · transistor · prototype · DIY · schematic

sensation

tongue

Oral muscle for taste

shockViolent sudden disturbance
tingleSlight stinging sensation
zapDestroy suddenly with energy

taste · metallic · electric · lick · dare · prank · experiment · curiosity · childhood · sting

Categories

batteriesrechargeable battery, AAAA, D cell, car battery, lithium-ion battery
Battery termsalkaline, lithium, lithium-ion, nickel-cadmium, NiCad

Opposites

battery form factor

9-voltAA

Two-letter abbreviation

AAA · button cell · coin cell · car battery · lead-acid battery

voltage level

9-volthigh-voltage

Carrying strong electrical current

Family

volt, volts, voltage, voltages, voltaic, voltmeter, voltmeters

Familiarity: Top 200,000
Profile: Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G