Furthermore, as compared to silver-oxide batteries, their capacity is 30 percent lower when drained down to 1. Hearing aids, diabetes meters, blood pressure monitors, calculators, and watches and a variety of other electronic devices are all compatible with the Energizer 376 battery. You can also use a micrometer to measure the inside of a battery cavity to find out which battery you need. But, some manufacturers label AG4 (incorrect) and silver-oxide batteries with both SG4 (correct) to indicate that they are a substitute for SR626SW/SR626/LR626/SR66/LR66/SG4/AG4 batteries. The Apollo lunar module, Saturn rocket launcher, moon rover, and life-support bag all employed the same technology.

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Multi-drain means they are adaptable and function as well in high-drain settings (digital, electric watches) as well as low-drain scenarios (analogue watches).The battery code after the digits containing ‘SW’ indicates the battery is made of sodium hydroxide electrolyte and is in compliance with the watch battery standard of IEC 60086-3. A potassium hydroxide battery is identified by the letter ‘P’ in the battery code following the digits. A sodium hydroxide electrolyte battery is identified by the letter ‘S’ in the battery code following the digits. Note that nominal capacity is affected by the device being powered by the LR626 battery, as well as drain current, temperature, battery age, and other factors. AG4 batteries have a chemistry that is alkaline and should not be used as a watch battery replacement or a hearing aid battery replacement.

SR626SW, LR626, LR66 Battery Equivalents - AussieBattery AG4, SR626SW, LR626, LR66 Battery Equivalents - AussieBattery

Because their energy density is higher than that of ordinary batteries, these Button Cells pack a lot of energy for their small size. PRO TIP: If you are having a hard time determining your battery, measure the width of the battery and then the height. These button-cell batteries, often known as micro batteries, power timepieces and small electronics like calculators and health monitors.

When utilizing alkaline AG4/LR66/LR626 batteries, however, sensitive electronics may have problems running at such low voltages and may have reliability difficulties. A silver oxide battery will maintain voltage over time whereas the alkaline battery voltage will lower over time and not maintain 1. E364, SB-AG, AG1/364A, 364A, 364X, GP164, SW621, LR620, LR60, SG1, LR621, L621, AG-1, 364, AG1, GP364, S621E, D364, 602, SB-AG/DG, 280-34, T, V364, SR621, SR60, SR621SW batteries are all direct replacements. However, most manufacturers now offer SR626 batteries (multi-drain) that may be used in keychain LED torches, thermometers, analog watches, both digital and toys, and other devices.