Calculator & Thermometer Battery Guide
Low-drain instruments often use alkaline or silver oxide button cells. LR44/AG13 and LR1130/AG10 families dominate calculators and thermometers — verify thickness before swapping.
Selection notes
- LR44 is 5.4 mm thick; LR1130/L1131-size cells are about 3.0–3.1 mm — not interchangeable.
- Silver oxide upgrades improve caliper and meter accuracy under load.
- Keep spare cells sealed; button cells self-discharge faster once the foil is removed.
Related charts
LR44 is one of the most searched button cells worldwide — an 11.6 × 5.4 mm, 1.5V alkaline cell also sold as AG13, A76, 76A, or LR1154. Silver oxide SR44/357 fits the same holder and is the better upgrade for watches and meters.
AG13 is one of the most searched alkaline button labels online. It is the same 11.6 × 5.4 mm, 1.5V cell as LR44, A76, and 76A — not a different chemistry.
A76 is Energizer's equivalent name for the standard LR44/AG13 alkaline button cell. If your device tray says A76, any quality LR44 alkaline of 11.6 × 5.4 mm will fit.
LR1130 (AG10/L1131) is an 11.6 × 3.0 mm alkaline cell — thinner than LR44 in the same diameter. Shoppers often search L1131 or AG10 for the same family.
L1131 is a frequently searched alkaline button label that maps to the LR1130/AG10 size family (about 11.6 × 3.0–3.1 mm). It is thinner than LR44 despite sharing the same diameter.
AG10 is the alkaline retail label for LR1130-sized cells (11.6 × 3.0 mm). Shoppers often search L1131 for the same family — confirm thickness before buying LR44 by mistake.
SR44 silver oxide cells (also sold as 357 or 303) provide stable 1.55V output in the standard LR44 form factor.
357 is the most common US retail label for SR44-size silver oxide watch batteries.
Frequently Asked Questions
Is L1131 the same as LR1130?
They share the 11.6 × ~3.0 mm alkaline family. L1131 is a common retail/search label that maps to the LR1130/AG10 size — confirm the printed code on your device.
Review record and primary sources
Reviewed by PlainBattery Technical Review Desk on 2026-08-25. Checked: device-selection guidance, linked battery dimensions, voltage, and chemistry, compatibility and safety limits.
- Energizer A76 / IEC LR44 Product Datasheet — Energizer Holdings, EBC-4407F. LR44/A76 dimensions, voltage, capacity test conditions and discharge curve.
- Silver Oxide (SR) and Alkaline Button (LR) Battery Specifications — Maxell. SR/LR model dimensions, voltage, nominal capacity and drain class.
- Energizer 357/303 / IEC SR44 Product Datasheet — Energizer Holdings, EBC-4349C. SR44/357/303 dimensions, chemistry, voltage and low-drain performance.
Revision record: source citations and field-level review scope added September 11, 2026. See our sources and methodology and corrections policy.
To identify a printed code, use the Battery Finder or the cross-reference charts.