Excellent cost-performance
Unlike silver oxide batteries that use the precious metal, silver, the alkaline battery features good cost-performance because it uses low-cost manganese dioxide as its active material.

Superior leakage* resistance
Like silver oxide batteries, the LR battery is manufactured using the Maxell’s original leak-resistant processing that suppresses the electrolyte from rising up and seeping out — a basic phenomenon of alkaline electrolytes.

Excellent heavy load characteristics
The LR battery offers excellent heavy load characteristics and employs a separator featuring low internal resistance, good liquid holding properties and high-drain characteristics.

* Leakage is defined as an unintended escape of liquid from a battery.



 Modal LR44 LR43 LR1130 LR1120 LR41 4LR44
 Nominal Voltage (V)
 Diameter (mm) 11.6 11.6 11.6 11.6 7.9 13
 Height (mm) 5.44.2 3.05 2.05 3.6 25.2
 Weight (g) 2 1.5 1.1 0.8 0.6 10.5

* Data and dimensions are reference values only. For further details, please contact your nearest Maxell office.


Mini-game machines, electronic calculators, electronic clocks, electronic watches, measuring instruments, electronic lighters, electronic thermometers, cameras, compact radios, and various types of remote controllers, etc.


Micro Battery Replacement Guide

This chart lists Maxell’s button- and coin-type batteries, along with the corresponding batteries of other brands.



The Maxell’s LR battery is a compact, light and economical alkaline battery having a nominal voltage of 1.5V. The LR battery is less expensive than silver oxide batteries and usable with a wide variety of equipment, ranging from electronic calculators to electric toys.

Based on many years of experience and know-how in the field of silver oxide batteries, the LR battery boasts high quality and high reliability.


Principle and reaction

The button-type alkaline battery uses manganese dioxide (MnO2) as its positive active material and zinc (Zn) as its negative active material. Potassium hydroxide (KOH) is used as an electrolyte.



Data and dimensions are not guaranteed but reference values. For further details, please contact us at your nearest Maxell office.
Contents on this website are subject to change without notice.

Cross-sectional diagram