Maxell LR44 Alkaline Battery

Maxell LR44 Alkaline Button Cell — What It Is

The Maxell LR44 is a non-rechargeable 1.5V alkaline button battery built to the IEC LR1154 size (11.6 mm diameter × 5.4 mm height). It suits low- to moderate-drain electronics such as calculators, laser pointers, digital calipers, small toys, and sound modules. Expect roughly 110 mAh capacity under typical light loads, with reliable performance across a wide temperature range.

Compatibility and Equivalent Codes

• Maxell LR44 (IEC: LR1154)
• Common cross-references (alkaline): AG13, A76, L1154, G13, 157
• Same size, different chemistry: SR44/357 (silver-oxide, 1.55V) — longer life and flatter voltage; use when specified

Always match your device manual. Physically compatible batteries (e.g., SR44/357) may be recommended for accuracy-critical devices.

When to Choose LR44

• General-purpose devices: calculators, timers, LED keychain lights, small toys
• Intermittent-use gadgets: laser pointers, novelty sound/light modules
• Cost-sensitive replacements where alkaline performance is sufficient

Consider SR44/357 (Silver-Oxide) Instead

• Precision gear: some watches, light meters, medical/diagnostic instruments (when specified)
• Devices that require very stable voltage over the discharge cycle
• Longer runtime needs in the same physical size

Key Specifications

Parameter	Value
Chemistry	Alkaline (Zn/MnO2)
Nominal Voltage	1.5 V
Typical Capacity	~110 mAh (varies with load and cutoff)
Size (IEC)	LR1154 — 11.6 mm × 5.4 mm
Weight	~1.8–2.0 g
Operating Temperature	-10 °C to +60 °C
Shelf Life	Typically several years; check package date code

Runtime Examples (Typical)

• Calculator or digital calipers: months to a year, depending on use
• Laser pointer: about 30–90 minutes of cumulative on-time
• LED keychain light: roughly 20–60 minutes of bright output
• Toy sound/light modules: a few hours of intermittent play

Actual runtime depends strongly on current draw, duty cycle, and ambient temperature.

Installation

1. Open the battery compartment using the proper tool or latch.
2. Note polarity (+ facing the marked side) before removal.
3. Insert the new LR44 with correct orientation.
4. Close the compartment securely and test the device.

For devices using multiple cells, replace all at once. Do not mix brands, ages, or chemistries.

Storage and Safety

• Store in a cool, dry place (ideally 10–25 °C), in original packaging until use.
• Keep away from metal objects to prevent short circuits.
• Button batteries pose a severe ingestion hazard. Keep out of reach of children and pets; seek immediate medical attention if swallowed.
• Do not recharge, crush, or expose to fire.
• Recycle or dispose of at approved battery collection points; do not put in household trash.

Alternatives and Compatibility Notes

• SR44/357 (silver-oxide, 1.55V): better voltage stability and typically longer life; often preferred for cameras, meters, and some watches.
• CR1/3N (3V lithium): some devices accept either two LR44 in series or a single CR1/3N. Follow the device manual; do not substitute unless explicitly supported.
• Rechargeable look-alikes (e.g., 3.6V Li-ion “LIR44”): higher voltage and not drop-in compatible for LR44 devices. Avoid unless the device specifically allows it.

FAQ

Is LR44 the same as 357?

They share the same size, but LR44 is alkaline (1.5V) while 357 is silver-oxide (1.55V). 357 typically lasts longer and holds voltage flatter. Use what your device specifies.

Can I use two LR44 instead of a CR1/3N?

Many devices that accept a CR1/3N (3V) also work with two LR44 cells in series (≈3V) if the compartment is designed for it. Check the device manual before substituting.

How long do LR44 batteries last in storage?

Typically several years when stored sealed at room temperature. Use by the date code on the package for best results.

Are LR44 batteries safe for watches?

Some watches use this size, but many perform better with SR44/357 due to the flatter voltage curve. Follow the watch manufacturer’s recommendation.

Can I mix LR44 with other button cells?

No. Do not mix old and new cells, brands, or chemistries. Replace all cells as a set with the same type.