Battery

AAA

1.5V alkaline cell

AAA is a smaller standard cylindrical cell. Streaming remotes and many calculators use AAA — check quantity and chemistry on your device page. Bose Smart Soundbar 900 / SoundTouch remotes are 2× AAA — not the CR2032 Bose remotes.

Chemistry: alkaline
Voltage: 1.5 V
Diameter: 10.5 mm
Length: 44.5 mm
Used by: 33 devices

Common uses: Remotes · Calculators · Sensors

AAA Diagram

Brand-neutral outline — confirm the tray in your device.

Other names

Genuine aliases and pack labels for this battery — not substitutes of a different chemistry.

LR03 · R03 · UM-4 · UM4 · AM4 · MN2400

Related codes

Same battery / other names

AAAAM4

Also sold as

Brand or pack name for the same battery.

AAALR03

Also sold as

Brand or pack name for the same battery.

AAAMICRO

Same battery

Same battery, different label.

AAAMN2400

Also sold as

Brand or pack name for the same battery.

Size

10.5 × 44.5 mm

Device-specific caveats

From manufacturer-backed notes on devices that use AAA — not generic advice.

2× AAA alkaline (not rechargeable per Logitech specs).
2× AAA replaceable — not a sealed rechargeable MX Keys sibling.
Bluetooth pairing issues are separate from battery type — fit fresh AAA first, then re-pair if needed.
Do not use rechargeable AAA unless Bose later documents otherwise for your exact remote.
Identify Voice Remote by model (e.g. RCAL7R) — Voice Remote Pro is sealed rechargeable, not 2× AAA.

Devices using AAA

14 / 33

All (33)Calculators (14)Remotes & audio (7)Aviation accessories (3)AC / mini-split remotes (3)Garage remotes (2)Computer peripherals (2)Weather meters (1)Ceiling fan remotes (1)Casio (8)Texas Instruments (6)LiftMaster (2)ASA (2)Logitech (2)Vizio (2)Bose (2)

Used in

Calculators14 devices Remotes & audio7 devices Aviation accessories3 devices AC / mini-split remotes3 devices Garage remotes2 devices Computer peripherals2 devices Weather meters1 device Ceiling fan remotes1 device

Brands: Casio · Texas Instruments · LiftMaster · ASA · Logitech · Vizio · Bose

Learn more

Testers & chargers

Optional tools that fit this cell type — only where the chemistry allows. Separate from the battery answer.

Amazon links may earn us a commission. They do not change the battery answer.

Ansmann Energy Check LCD
Quick household cell check (good / low / replace)
Docs Buy on Amazon More tools
Panasonic eneloop AAA (LSD NiMH)
Replacement AAA cells when the device accepts NiMH
Docs Buy on Amazon More tools
Panasonic eneloop BQ-CC55 charger
Everyday NiMH AA/AAA charging (eneloop ecosystem)
Docs Buy on Amazon More tools

Battery tester
Quick good / low / dead check for household cells
Crude check only — does not measure capacity under realistic load.
How to test a battery Buy on Amazon

Buy links are optional and separate from the battery answer.

Need one?

Need a AAA?

Search Amazon for packs of this battery code.

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