![]() ![]() Again, some manufacturers also label them using alkaline AG# label to emphasize that their silver-oxide (SG#) batteries are replacement for alkaline AG# batteries. Typical labels of silver-oxide batteries are SR#, SR#, SG#, or similar. This 0.05 V difference is rarely of an issue - in real life more devices will have issues due to the voltage drop in alkaline batteries than with slightly larger voltage of silver-oxide batteries. Silver Oxide: Silver-oxide button/coin cell batteries are the most popular type of these batteries - they are not expensive, often have a shelf life of 10 or more years, they have very constant voltage during operation, which is very similar to the nominal voltage of alkaline batteries (1.55 V vs 1.50 V). Shelf life depends on the manufacturer, but generally newer alkaline batteries have a shelf life of at least 5 years. ![]() The typical capacity of, for example, alkaline LR44 is in the 110-130 mAh range, which is lower when compared with equivalent silver-oxide (150-200 mAh) or zinc-air (600-700 mAh). Typical labels of alkaline batteries are LR#, LR#, AG#, or similar. If alkaline batteries are used in devices that tolerate low battery voltage, then nominal capacity is larger, since such device will not require new batteries soon. If it is some sort of electronic equipment requiring constant and relatively high voltage, then the nominal capacity of these batteries is rather low - such device will require new replacement batteries rather quickly. Their nominal voltage is 1.5 volts, but as the battery is used, its voltage drops over time.Īctual capacity depends on the cut-off voltage of the used device. Slightly lower voltage contains mercury Īlkaline: Alkaline button/coin cell batteries are reliable and cheap batteries. However, AG13 (AG**) and SG13 (SG**) are both often used for silver batteries, while AG13 (AG**) is mostly used only for alkaline batteries.Ī comparison of these chemistries is given in the following table: Chemistry For example, the AG13 battery should be an 'Alkaline G13' battery, and the SG13 battery should be a 'Silver G13' battery. ![]() There are several chemistry types of these batteries: alkaline, silver-oxide, zinc-air, and mercury-oxide, leading to confusion among their users.Īlso, some manufacturers interchangeably use the same labels for both alkaline and silver-oxide batteries. They are very common in watches, key-chain flashlights, hearing aids, remote controls, and similar. Button/coin cell batteries are a group of non-rechargeable batteries. ![]()
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