AA battery

Small cylindrical cell

An AA battery is a standard cylindrical dry cell battery used to power small electronic devices such as remote controls, flashlights, and portable radios.

The designation refers to its size—roughly 50mm long and 14mm in diameter—rather than its chemistry, which may be alkaline, lithium, or rechargeable nickel-metal hydride.

AA batteries are among the most common consumer battery sizes worldwide.

I need to pick up some AA batteries for the smoke detector.

devices

flashlight

Portable electric lamp

toyObject for amusement
calculatorElectronic computation device
thermostatAutomatic climate control device

headlamp · doorbell

chemistry

alkaline

Having high pH

lithiumLightest solid element
rechargeableAble to regain power
disposableMade for one use

electrolyte · anode · cathode · leakproof · shelf-life · corrosion · discharge · capacity · energizer

form

cylindrical

Circular in cross-section

cellBasic unit of life
penlightMiniature cylindrical torch
eight-packExceptional abdominal musculature

electrical

voltage

Electrical potential difference

currentDirected flow of charge
polarityState of opposing forces
contactCommunication or physical touch

circuit · load · drain · resistance · series · parallel

Categories

batteriesAAAA, D cell, 9-volt, C, D
portable energypower bank, solar charger, coin cell, USB charger, car charger
backup powergenerator, backup power, backup generator, APU, emergency power
rocket launchersrocket launcher, RPG, bazooka, shoulder-fired, rocket artillery

Opposites

power source type

AA batteryAC power

Oscillating electrical current

wall outlet · power cord · solar panel · generator · fuel cell

rechargeability

AA batteryrechargeable battery

Cell restored by current

lithium-ion battery

battery size/capacity

AA batterycar battery

Vehicle's electrical storage unit

D battery · 9-volt battery · AAA battery · watch battery · button cell

Family

battery, batteries, alkaline battery, alkaline batteries

Familiarity: Top 100,000
Profile: Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G