LR44 vs. 357 Battery


The LR44 and 357 batteries are both small, button-shaped cells commonly used in a variety of small electronic devices. Here's a comparison between the two:

LR44 Battery

  • Type: Alkaline
  • Voltage: 1.5 volts
  • Size: 11.6 mm diameter × 5.4 mm height
  • Common Equivalents: AG13, A76, L1154, 303, RW42, and SR44

357 Battery

  • Type: Silver oxide
  • Voltage: 1.55 volts
  • Size: 11.6 mm diameter × 5.4 mm height
  • Common Equivalents: SR44, SG13, SR44SW, and SR1154


  • Chemistry: The LR44 battery uses alkaline chemistry, while the 357 battery uses silver oxide chemistry. Silver oxide batteries typically have a higher energy density and are often used in precision instruments and medical devices.

  • Voltage: The LR44 battery has a nominal voltage of 1.5 volts, while the 357 battery has a nominal voltage of 1.55 volts.

  • Applications: LR44 batteries are commonly used in small electronic devices such as watches, calculators, and toys. The 357 battery is also used in similar devices but is especially common in precision instruments, medical devices, and applications where a stable voltage and longer shelf life are crucial.

The Difference in Specifications

  lR44 357
Battery type Alkaline Manganese   Batteries Silver Oxide
Nominal   Voltage 1.5V 1.55V
Nominal   Capacity 120mAh 150 mAh
Operating   Temperature Range -10℃ to 60℃  
Diameter   (inch) 0.457inch  
Diameter (mm) 11.6mm 11.6mm
Height (inch) 0.213inch 0.213inch
Height (mm) 5.4mm 5.4mm
IEC (JIS) LR44  
Mass (oz) 0.0705oz  
Mass (g) 2g 2.3g


These two batteries are interchangeable in many devices. The slightly higher voltage of the 357 battery can sometimes affect the performance of devices designed for the lower voltage LR44, so it's always best to check the device's specifications and consult the user manual if possible. In many cases, however, the voltage difference is small enough that they can be used interchangeably.

When replacing batteries in a device, it's important to ensure that the replacement battery matches the voltage and size requirements. Always check the device's documentation or consult an expert if you have any doubts about the appropriate replacement.