LR44 Battery: Equivalent, Specifications and Replacements

The LR44 battery is a common coin cell battery that is used in a wide range of electronic devices, including toys, remote controls, watches, calculators, and so on. It is manufactured by virtually all recognized brands. LR44 battery features a diameter of 11.6 mm (0.457 inches) and a height of 5.4 mm (0.213 inches). The LR44 battery is typically a 1.5 Volt with an operating temperature ranging from 0°C- 60°C, while the optimal temperature is 20°C.

LR44 Battery

• Average Service Capacity( to 0.9 volts):120 mAh (Rated capacity at 4.7k ohms at 23℃)

• Terminals: Flat contacts

• Average weight: 2.0 g

• Minimum OCV: 1.50 volts

• Minimum –10℃ CCV (200 ohms / 5 seconds):1.10 volts

• Minimum Capacity (4.7k ohms to 0.9 volts):08 mAh

The nominal voltage of 11.6x5.4 mm batteries depends on the exact battery chemistry, but also on the battery age, storage conditions, discharge conditions, and similar.

The nominal voltage of the LR44 battery is 1.5 volts and the cutoff voltage is 0.9-1.0 volts - the cutoff voltage also depends on the cutoff voltage of the device in use.

• Medical

• Insulin pumps

• Thermometers

• Drug delivery systems

• Others Electronic calculator

• Toys

LR44 is an alkaline 1.5 V battery. The most common LR44 battery equivalent batteries are:

• AG13

• L1154

• LR1154

• 157

Silver Oxide Equivalent Batteries

LR44 can be also replaced with a silver oxide battery. The most common silver oxide equivalents are:

• SR44

• SR44SW

• 303

• 357

To summarize, a comparison of LR44 battery equivalents and replacements are given in the following chemistries cross reference chart:

Overview of 357 Battery

357 Battery

The 357 battery is a tiny battery with many uses. This 1.5-volt size 357 battery is used in watches, medical equipment, laser pointers, and more. Size 357 batteries are silver oxide batteries, while A76 batteries are alkaline batteries.

Difference in Features

LR44 Features:

• Excellent cost performance

High-cost performance has been achieved owing to the use of manganese dioxide as a cathode material.

• Excellent stable discharge and high-drain pulse discharge characteristics

Stable voltage output is available during the high-drain pulse discharge.

• Excellent leakage resistance

Murata-unique sealing structure, coupled with special sealing-material treatment, has helped accomplish excellent leakage resistance.

• RoHS  Directive / European Directives

This product does not contain Mercury(Hg), Cadmium(Cd), nor Lead(Pb), and conforms to EC regulation values. (Directive 2006/66/EC, 2013/56/EU)

The battery pack is excluded from the RoHS directive. (DIRECTIVE 2011/65/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment)

357 Battery Features:

• Chemical System: Silver Oxide (Zn/Ag2O)

• Designation: ANSI-1131SO, IEC-SR44

• Nominal Voltage: 1.55 Volts

• Typical Capacity: 150 mAh* (to 1.2 volts)

• Capacity Test: 6.8K ohm continuous drain at 21°C

• Typical Weight: 2.3 grams (0.08 oz.)

• Typical Volume: 0.57 cubic centimeters (0.035 cubic inch)

• Impedance (40 Hz): 5 to 15 ohms

The Difference in Specifications

The Difference in Dimensions

LR44 Dimensions

357 Dimensions

Murata is a leading enterprise that is committed to designing, manufacturing, and providing advanced electronic materials, leading-edge electronic components, and multi-functional, high-density modules. Our innovations can be discovered in an extensive range of applications containing mobile phones, home appliances, and automotive applications to energy management systems and healthcare devices.

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