Thanks to their ultra-long shelf/standby life (up to 20+ years!), Li-FeS 2 batteries are recommended for devices and applications that are used rarely/in standby, but they must be powered with a reliable power source, even after years (decades!) of non-use. Li-FeS 2 AAA batteries are commonly used in high-drain devices like cameras, flashlights, high-end toys, and similar. Its typical capacity is in the 1100 - 1300 range, providing high capacity and energy density. Li-FeS 2 or Lithium Iron Disulfide is a type of non-rechargeable AAA lithium battery featuring a typical voltage of 1.5 V during high drain applications but also up to 1.8 V maximum open-circuit voltage. NiOOH AAA batteries have a very similar capacity to standard alkaline batteries, but they can be drained using larger currents and are often used in high-drain devices like cameras and similar ones. NiOOH or Nickel Oxy-Hydroxide AAA battery is a type of alkaline battery where nickel oxyhydroxide is added to the manganese dioxide, leading to the 1.5 V typical voltage during high drain use and 1.7 V maximum voltage. Unless otherwise labeled, the alkaline AAA battery is a primary, non-rechargeable battery. But, specially designed AAA alkaline batteries can be recharged numerous times, although these are not standard alkaline batteries. Note: most alkaline batteries are non-rechargeable (primary) batteries. When compared with Zinc Carbon batteries, alkaline AAA batteries have a higher capacity and higher energy density, with longer shelf-life, with some brands offering up to 10+ years of shelf life. They also feature a nominal voltage of 1.5V and a larger capacity of 850 - 1200 mAh. Zinc Carbon AAA batteries were very popular AAA battery chemistry, but due to their lower capacity, these batteries are almost fully replaced by alkaline AAA batteries.Īlkaline AAA batteries are practically a standard chemistry type of AAA batteries. Zinc Carbon AAA batteries are a somewhat older type of primary batteries, featuring a nominal voltage of 1.5 V and a typical capacity of 500-600 mAh. Non-rechargeable (primary) AAA batteries include Zinc Carbon, Alkaline, Li-FeS2, and NiOOH batteries. However, with the advances in technology and chemistry, new types are gaining in popularity as well. The following chart lists the most common AAA battery chemistries, labels, and their features, including perhaps their most important features, AAA battery voltage, and capacity:Īlthough AAA batteries features vary greatly depending on the chemistry type, the most important AAA batteries are non-rechargeable alkaline AAA batteries and NiMH rechargeable AAA batteries. Their standard label is 'AAA', but other labels are also in use, often depending on the country, chemistry, standard and similar, including LR03, R03, FR03, HR03, KR03, ZR03, 24A, 24D, 24LF, MN2400, MX2400, MV2400, Type 286, U16, HP16, UM 4, etc.īut, practically all the most important battery brands label them as AAA batteries. AAA Batteries - Size, Chemistry Types, and ReplacementsĪAA batteries are one of the most common cylindrical battery sizes used in various electronic and electric devices, like remote controls, toys, cameras, flashlights, radios, etc.ĪAA batteries differ greatly in chemistry and hence they differ in capacity, voltage, current/voltage discharging characteristics, and many other features, which may be of great importance when powering sensitive electronic equipment.ĪAA Battery Dimensions, Features, and SpecificationsĪAA batteries are cylindrical batteries 10.5 mm (0.41 inch) in diameter and 44.5 mm (1.75 inch) in length.
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