AAA battery

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File:Kodak AAA alkaline and zinc carbon batteries.jpg
AAA batteries showing both alkaline (LR03) and zinc (R03) versions
File:6 most common battery types-1.jpg
D, C, AA, AAA, AAAA, 9-Volt batteries

The AAA battery (or triple-A battery) is a standard size of dry cell battery. One or more AAA batteries are commonly used in low-drain portable electronic devices. A zinc–carbon battery in this size is designated by IEC as R03, by ANSI C18.1 as 24, by old JIS standard as UM-4, and by other manufacturer and national standard designations that vary depending on the cell chemistry. The size was first introduced by The American Ever Ready Company in 1911.[1] In Mainland China, they are called #7 batteries, the name originating from Charles F. Burgess of the Burgess Battery Company designating his AAA batteries "Number 7".Script error: No such module "Unsubst".

An AAA battery is a single cell that measures Script error: No such module "convert". in diameter and Script error: No such module "convert". in length, including the positive terminal button, which is a minimum Script error: No such module "convert".. The positive terminal has a maximum diameter of Script error: No such module "convert".; the flat negative terminal has a minimum diameter of Script error: No such module "convert"..[2] Alkaline AAA batteries weigh around Script error: No such module "convert"., while primary lithium AAA batteries weigh about Script error: No such module "convert".. Rechargeable nickel–metal hydride (NiMH) AAA batteries typically weigh Script error: No such module "convert"..

Use

AAA batteries are most often used in small electronic devices, such as TV remote controls, MP3 players and digital cameras. Devices that require the same voltage, but have a higher current draw, are often designed to use larger batteries such as the AA battery type. AA batteries have about three times the capacity of AAA batteries. With the increasing efficiency and miniaturization of modern electronics, many devices that previously were designed for AA batteries (remote controls, cordless computer mice and keyboards, etc.) are being replaced by models that accept AAA battery cells.

As of 2007, AAA batteries accounted for 24% of alkaline primary battery sales in the United States. In Japan as of 2011, 28% of alkaline primary batteries sold were AAA. In Switzerland as of 2007, AAA batteries totaled 30% of primary battery sales and 32% of secondary battery (rechargeable) sales.[3][4][5]

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Chemistry IEC name ANSI/NEDA name Nominal voltage (V) Typical capacity (mAh) Typical capacity (Wh) Rechargeable
Zinc–carbon R03 24D 1.5 540 0.81 No
Alkaline LR03 24A 1.5 Script error: No such module "sort".[6] Script error: No such module "sort". Some
Li-FeS2 FR03 24LF 1.5 Script error: No such module "sort". 1.8 No
NiMH <templatestyles src="Fraction/styles.css" />1⁄2 AAA 10.4mm 22.7mm GP35AAAH 1.2 ~350–1,000[7] 0.42 - 1.2 Yes
Li-ion <templatestyles src="Fraction/styles.css" />1⁄3 AAA 10180 3.7 ~100 0.4 Yes
Li-ion <templatestyles src="Fraction/styles.css" />2⁄3 AAA 10280 3.7 ~200 0.8 Yes
Li-ion AAA 10440 3.7 ~350 1.3 Yes
NiCd KR03 24K 1.25 Script error: No such module "sort". Script error: No such module "sort". Yes
NiMH HR03 24H 1.25 Script error: No such module "sort".[8] Script error: No such module "sort". Yes

Other common names

File:Eneloop 6420.jpg
Panasonic Eneloop 1.2 V NiMH rechargeable batteries in AA and AAA

See also

References

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  1. ↑ About Eveready
  2. ↑ Script error: No such module "citation/CS1".
  3. ↑ Life Cycle Impacts of Alkaline Batteries with a Focus on End-of-Life - EPBA-EU.
  4. ↑ Script error: No such module "citation/CS1". INOBAT 2008 statistics.
  5. ↑ Monthly battery sales statistics - MoETI - March 2011 Template:Webarchive.
  6. ↑ VARTA V4903 datasheet.
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "citation/CS1".
  10. ↑ Script error: No such module "citation/CS1".
  11. ↑ Heinz Albert Keighne, Battery technology handbook, CRC Press, 2003 Template:ISBN, page 374.
  12. ↑ Defence Standards: 61 Series - Electrical Wire and Power.

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External links

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