4.5-volt, D, C, AA, AAA, 9-volt, SR41/AG3, SR44/AG13
This article lists the sizes of some common primary and interchangeable secondary battery types in household and light industrial use. The long history of disposable dry cells means that many different manufacturer-specific and national standards were used to designate sizes, long before international standards were reached. Technical standards for battery sizes and types are published by standards organizations such as International Electrotechnical Commission (IEC) and American National Standards Institute (ANSI). Popular sizes are still referred to by old standard or manufacturer designations, and some non-systematic designations have been included in current international standards due to wide use.
The complete nomenclature for the battery will fully specify the size, chemistry, terminal arrangements and special characteristics of a battery. The same physically interchangeable cell size or battery size may have widely different characteristics; physical interchangeability is not the sole factor in substitution of batteries.
A battery may consist of a single cell or two or more cells in a single package, such as the 2CR5 (two lithium cells) or a 4LR44 (four LR44 cells), or a 1604 9-volt battery which has six cells.
1 Standardization
The current IEC standards for portable primary (non-rechargeable) batteries bear the 60086 number. The relevant US standards are the ANSI C18 series. These standards are developed by a committee of the National Electrical Manufacturers Association (NEMA). Both standards have several parts covering general principles, physical specifications and safety. Designations by IEC and ANSI standards do not entirely agree, although harmonization is in progress. Manufacturers further have their own systematic identification of cell types, so cross-reference tables are useful to identify equivalent types from different manufacturers.
2 Battery chemistry
The terminal voltage of a battery depends on the chemicals it uses, and not on its physical size. For example, primary (non-rechargeable) alkaline batteries have a nominal voltage of 1.5 volts. Rechargeable NiCd (nickel cadmium) and NiMH (nickel metal hydride) typically output 1.25 volts per cell. Devices intended for use with primary batteries may not operate properly with these cells, given the reduction in voltage. mercury batteries, no longer common, had stable terminal voltages around 1.35 volts.
The full battery designation identifies not only the size, shape and terminal layout of the battery but also the chemistry (and therefore the voltage per cell). For example, a CR123 battery is always LiMnO2 ('lithium') chemistry, in addition to its unique size.
The following tables give the common battery chemistries for the current common sizes of batteries. See Battery Chemistries for a list of other electrochemical systems.
3 Nonstandard brand-specific names
Manufacturers may assign proprietary names and numbers to their batteries, disregarding common, colloquial, IEC, and ANSI naming conventions (see LR44 battery as an example). Often this is done to steer customers towards a specific brand, and away from competing or generic brands, by obfuscating the common name. For example, if a remote control needs a new battery and the battery compartment has the label, "Replace with CX472 type battery," many customers will buy that specific brand, not realizing that this is simply a brand name for a common type of battery. For example, British standard U series were often sold under manufacturer prefixes such as "C" "SP" "HP" etc ); Ever Ready sold "U2" (D) batteries as "SP2" (standard-duty zinc carbon) and "HP2" (heavy duty zinc chloride).
On the other hand, with obscure battery types, the name of a specific brand will sometimes become the most common name for that battery type, as other manufacturers copy or modify the name so that customers recognize it.
4 Common consumer batteries
4.1 Cylindrical batteries
These are all single-cell round batteries with height greater than their diameter. In zinc-carbon or alkaline types they produce around 1.5 volts per cell when fresh. Other types produce other voltages per cell (as low as 1.2 volts for rechargeable nickel-cadmium, up to around 3 volts for lithium/manganese dioxide). The cylindrical form has a positive nub terminal at the cap of the cell, and the negative terminal at the bottom of the can; the side of the can is not used as a terminal.
Most Common Name | Other Common Names | IEC Name | ANSI/NEDA Name | TypicalCapacity(mAh) | Dimensions Diameter x Height (mm) | Comments |
---|---|---|---|---|---|---|
AAA | U16 (In Britain until the 1980s) Micro Microlight MN2400 MX2400 Type 286 (Soviet Union/Russia) UM 4 (JIS)[2] #7 (China) |
LR03 (alkaline) R03 (carbon–zinc) FR03 (Li–FeS2) HR03 (NiMH) KR03 (NiCd) ZR03 (NiOOH) |
24A (alkaline) 24D (carbon–zinc) 24LF (Li–FeS2) |
1200 (alkaline) 540 (carbon–zinc) 800–1000 (NiMH) |
10.5 x 44.5 | Introduced 1911, but added to ANSI standard in 1959 |
AA | U7 (In Britain until the 1980s) Pencil-sized Penlight Mignon MN1500 MX1500 Type 316 (Soviet Union/Russia) UM 3 (JIS) #5 (China) |
LR6 (alkaline) R6 (carbon–zinc) FR6 (Li–FeS2) HR6 (NiMH) KR6 (NiCd) ZR6 (NiOOH) |
15A (alkaline) 15D (carbon–zinc) 15LF (Li–FeS2) 1.2H2 (NiMH) 1.2K2 (NiCd) |
2700 (alkaline) 1100 (carbon–zinc) 3000 (Li–FeS2) 1700–2900 (NiMH) 600–1000 (NiCd) |
13.5–14.5 x 50.5 | Introduced 1907, but added to ANSI standard sizes in 1947 |
C | U11 (In Britain until the 1980s) MN1400 MX1400 Baby Type 343 (Soviet Union/Russia) UM 2 (JIS) #2 (China) |
LR14 (alkaline) R14 (carbon–zinc) FR14 (Li-FeS2) HR14 (NiMH) KR14 (NiCd) ZR14 (NiOOH) |
14A (alkaline) 14D (carbon–zinc) |
8000 (alkaline) 3800 (carbon–zinc) 4500–6000 (NiMH) |
26.2 x 50 | Can be replaced with alkaline AA cell using plastic sabot (stub case) |
D | U2 (In Britain until the 1980s) Flashlight Battery MN1300 MX1300 Mono Type 373 (Soviet Union/Russia) BA-30 (US Military Spec WWII–1980s) UM 1 (JIS) #1 (China) |
LR20 (alkaline) R20 (carbon–zinc) FR20 (Li-FeS2) HR20 (NiMH) KR20 (Ni-Cd) ZR20 (NiOOH) |
13A (alkaline) 13D (carbon–zinc) |
12000 (alkaline) 8000 (carbon–zinc) 2200–12000 (NiMH) |
34.2 x 61.5 | Introduced 1898 as the first flashlight battery. |
4.2 Prismatic (rectangular)
Most Common Name |
Other Common Names |
IEC Name |
ANSI/NEDA Name |
Typical Capacity(mAh) | Nominal Voltage (V) | terminals | Dimensions | Comments |
---|---|---|---|---|---|---|---|---|
9-Volt | PP3 Radio battery Smoke Alarm (UK) MN1604 Square(sic) battery Krona (Soviet Union/Russia) Transistor |
6LR61 (alkaline) 6LF22 (alkaline; alternate) 6F22 (carbon zinc) 6KR61 (NiCd) 6HR61 (NiMH) |
1604A (alkaline) 1604D (carbon zinc) 1604LC (Lithium) 7.2H5 (NiMH) 11604 (NiCd) 1604M (mercury, obsolete)[3] |
565 (alkaline) 400 (carbon zinc) 1200 (lithium) 175–300 (NiMH) 120 (NiCd) 500 (Lithium polymer rechrg) 580 (Mercury, obsolete) |
9 (alkaline) 7.2 (NiMH and NiCd) 8.4 (some NiMH and NiCd) 9.6 (some NiMH)[4] |
both small end + male clasp − female clasp |
H 48.5 mm L 26.5 mm W 17.5 mm |
Added to ANSI standard in 1959 |
Lantern (Spring) | Lantern 6 Volt Spring Top MN908 (UK) 996 or PJ996 Energizer 529 |
4LR25Y (alkaline) 4R25 (carbon zinc) |
908A (alkaline) 908D (carbon zinc) |
26000 (alkaline) 10500 (carbon zinc) |
6 | SpringsTop + Corner − Center |
H 115 mm L 68.2 mm W 68.2 mm |
Spring terminals. |
5 Less common batteries
These types are not as likely to be found in consumer applications and may be specialized for photographic, instrumentation or other purposes. Some cell sizes are used only as elements of multi-cell batteries.
5.1 Cylindrical single-cell
These are all single-cell round batteries with height greater than their diameter. In zinc-carbon or alkaline types they produce around 1.5 volts per cell when fresh. Other types produce other voltages per cell (as low as 1.2 volts for rechargeable nickel-cadmium, up to around 3 volts for lithium/manganese dioxide). The cylindrical form has a positive nub terminal at the cap of the cell, and the negative terminal at the bottom of the can; the side of the can is not used as a terminal.
Most Common Name | Other Common Names | IEC Name |
ANSI/NEDA Name |
Typical Capacity(mAh) | Dimensions Diameter x Length (mm) |
Comments |
---|---|---|---|---|---|---|
AAAA | MX2500 Mini UM 6 (JIS) |
LR8D425 (alkaline) LR61 (alkaline) |
25A (alkaline) |
625 (alkaline) |
8.3 x 42.5 | Obscure type sometimes used in 'pen flashlights', calculators, fishing lures, or electronic glucose meters. Most common use is as an internal component of PP3 ("9-volt") batteries and J batteries. |
A | R23 (zinc-carbon) LR23 (alkaline) |
17 x 50 | More common as a NiCd or NiMH cell size than a primary size, popular in older laptop batteries and hobby battery packs | |||
B | U10 (UK, pre-1980s) 336 (Russia) |
R12 (zinc-carbon) LR12 (alkaline) |
8350 (alkaline) |
21.5 x 60 | Most commonly found within a European 4.5 volt lantern battery. Not to be confused with the vacuum tube B battery. | |
F | R25 (zinc–carbon) LR25 (alkaline) |
60 | 10.5 Ah (zinc-carbon) 26 Ah (alkaline) |
33 x 91 | Four "F" Cells are often found within 6 volt rectangular lantern batteries. | |
N | Lady MN9100 UM-5 (JIS) E90 |
LR1 (alkaline) R1 (zinc–carbon) HR1 (NiMH) KR1 (NiCd) |
910A (alkaline) 910D (zinc–carbon) |
800–1000 (alkaline) 400 (zinc-carbon) 350–500 (NiMH) |
12 x 30.2 | Typical uses include remote-control door chimes, smallflashlights,glucose meters, small deskclocks,and other low current drain devices. Also used for wireless microphones and some laser pointers. The HP-41C calculator used four of these batteries. The battery is approximately three-fifths the length of a AA battery. Rechargeablenickel-cadmium andnickel-metal hydride are far less common than other rechargeable sizes.[5] Mercury batteries of the same dimensions are no longer manufactured. |
No. 6 | Ignition Cell | R40 | 905 | 35–40 Ah (Zinc carbon) |
67 x 170.7 | Typical modern uses include school science experiments, and starting glow plugmodel engines. Formerly used for alarms, bell ringing, ignition systems, telephones.[1] |
5.2 Multi-cell cylinder
Most Common Name | Other Common Names | IEC Name | ANSI/NEDA Name | Typical Capacity (mAh) |
Nominal Voltage (V) | Dimensions Diameter xLength(mm) | Comments |
---|---|---|---|---|---|---|---|
A23 | V23GA 23A MN21 |
8LR23 (alkaline) |
1181A (alkaline) |
55 (alkaline) | 12 | 10 x 29 |
Used in small RF devices such as key fob-style garage door openers and keyless entry systems where only infrequent pulse current is used. Sometimes enclosed like a normal battery but sometimes a stack of eight LR932 button cells shrink wrapped together.
|
A27 | GP27A, MN27, L828 |
8LR50 (alkaline) |
22 (alkaline) | 12 | 8 x 28 | Used in small RF devices such as car alarm remote controls. | |
4SR44 | PX28A, A544, K28A, V34PX |
4LR44 (alkaline) |
110–150 (L) 170–200 (S) | 6.2 V (L) 6.5 (S) | 13 x 25.2 | Used in film cameras, blood glucose meters, medical instruments, dog training devices. | |
523 | PX21 | 3LR50 | 1306A | 580 (alkaline) | 4.5 | 17.1 x 49.9 | Used in cameras and Apple Macintosh computers (such as the 128K through 512K and similar). |
531 | PX19 | 3LR50 | 1307AP | 580 (alkaline) | 4.5 | 17.1 x 58.3 | A 523 with snap connectors attached to either end. Used in some older cameras. |
5.3 PP series
The PP (Power Pack) series was manufactured by Ever Ready in the UK (Eveready in the US) and designates multi-cell carbon-zinc batteries. The batteries were used for portable electronic devices. Most sizes are uncommon today, but the PP3 size is readily available.[6][7] The PP4 is cylindrical, all other types are rectangular. Most have snap terminals as seen on the common PP3/1604 type.
PP series | Other Common Names | Typical Capacity(mAh) | Nominal Voltage (V) | Dimensions | Comments |
---|---|---|---|---|---|
PP1 | 6 | H 55.6 mm L 65.5 mm W 55.6 mm |
|||
PP3 | See 9-volt prismatic/rectangular, above | ||||
PP4 | 226, NEDA 1600,IEC 6F24 | 9 | H 50.0 mm diameter 25.5 mm |
round with snap terminals. | |
PP6 | 246, NEDA 1602, IEC 6F50-2 | 850 | 9 | H 70.0 mm L 36.0 mm W 34.5 mm |
|
PP7 | 266, NEDA 1605 | 2500 | 9 | H 55.6 mm L 65.5 mm W 55.6 mm |
|
PP8 | 6 | H 200.8 mm L 65.1 mm W 51.6 mm |
|||
PP9 | 276, NEDA 1603,IEC 6F100 | 5000 | 9 | H 81.0 mm L 66.0 mm W 52.0 mm |
|
PP10 | 9 | H 226.0 mm L 66.0 mm W 66.0 mm |
|||
PP11 | 4.5 + 4.5 | H 91.3 mm L 65.1 mm W 52.4 mm |
4 pin connections for series or center tap 9 v |
5.4 Lithium-ion cylindrical rechargeable
Lithium-ion rechargeable batteries are not interchangeable with primary types with different chemistry. Lithium-ion cells are made in various sizes, usually made into packs for portable equipment. All of these cylindrical cells have a nominal voltage around 3.7 volts, and have a positive terminal nub at one end and flat negative terminal at the other. Many types are available with an internal protection circuit to prevent over-discharge and short-circuit damage. Safe and economic recharging requires use of chargers specified for these cells. Popular applications include laptop battery packs and flashlights.
Some sizes of lithium primary cells have lithium-ion rechargeable equivalents.
Most common name | Other common names | IEC name | ANSI/NEDA name | Typical capacity (mAh) | Dimensions Diameter x Length (mm) | Comments |
---|---|---|---|---|---|---|
32600 | 3000–6000 | 34 x 61 | About the same size as a D cell. | |||
25500 | 2500–5000 | 25 x 50 | About the same size as a C cell. | |||
18650 | 168A | 2200–3000 | 18 x 65 | Notably used in most laptop batteries and the Tesla Roadster | ||
10440 | 340 | 10 x 44 | Same size as AAA cell. | |||
14500 | 700 | 14 x 50 | Same size as AA cell. | |||
RCR123A | Tenergy 30200 [8]
,R123, RCR123A, RCR123 |
750 | 17 x 34.5 | Same size as, and substitute for, CR123 primary lithium for cameras and flashlights. Protected version. | ||
18500 | 1400 | 18 x 50 | ||||
17670 | 1800 | 17 x 67 | 2 times the length of a standard CR123A. | |||
17500 | 1100 | 17 x 50 | The same size as an A cell, and 1.5 times the length of a CR123A. | |||
14250 | 300 | 14 x 25 | Same size as 1/2 AA cell. | |||
10280 | 200 | 10 x 28 | ||||
10180 | 90 | 10 x 18 |
5.5 Duplex
Most common name | Duplex |
---|---|
Other Common Names | Ever Ready No. 8 |
IEC Name | 2R10 |
ANSI/NEDA Name | |
Typical Capacity (mA·h) | |
Nominal Voltage (V) | 3 |
Shape | Cylinder |
Terminal layout | + Nub cylinder end, − Flat opposite end |
Dimensions | H 74.6 mm, D 21.8 mm |
Comments | Internally contains two 1.5 V cells hence the nickname 'Duplex' |
5.6 Lantern
Most common name | Lantern (Screw) | Lantern (big) |
---|---|---|
Other Common Names | Lantern, 6 Volt, Screw Top | 918, R25-2, Big Lantern, Double Lantern, MN918, Energizer 521 |
IEC Name | ||
ANSI/NEDA Name | 915A (alkaline), 915 (carbon–zinc) | |
Typical Capacity (mA·h) | 26000 (alkaline), 10500 (carbon–zinc) | 52000 (alkaline), 22000 (carbon–zinc) |
Nominal Voltage (V) | 6 | 6 |
Shape | Square | Rectangular (doubled length) |
Terminal layout | Screw Posts Top, + Corner, − Center | Screw posts, Apart top |
Dimensions | H 115 mm, L 68.2 mm, W 68.2 mm | H 127 mm, L 136.5 mm, W 73 mm |
Comments | For uses that have high vibration/shock where the leads may be knocked off springs. |
5.7 4.5 volt
|
Most common name | 4.5 volt |
---|---|---|
Other Common Names | Pocketable Battery, 1203, 4.5 V, Type 3336 (Soviet Union/Russia) | |
IEC Name | 3LR12 (alkaline), 3R12 (carbon–zinc) | |
ANSI/NEDA Name | MN1203 (manganese) | |
Typical Capacity (mA·h) | 6100 (alkaline), 1200 (carbon–zinc) | |
Nominal Voltage (V) | 4.5 | |
Shape | Flat pack | |
Terminal layout | + short terminal strip, − long terminal strip | |
Dimensions | H 65 mm, L 61 mm, W 21 mm | |
Comments | This battery is more common in Europe than North America. |
5.8 Sub-C
Most common name | Sub-C |
---|---|
Other Common Names | Type 323 (Soviet Union/Russia) |
IEC Name | |
ANSI/NEDA Name | |
Typical Capacity (mA·h) | 1200–2400 (NiCd), 1800–5000(NiMH) |
Nominal Voltage (V) | 1.2 |
Shape | Cylinder |
Terminal layout | + Nub cylinder end, − Flat opposite end |
Dimensions | L 42.9 mm, D 22.2 mm, 1 11/16×7/8 in |
Comments | Extremely popular size for cordless tool battery packs. Also used in radio-controlled scale vehicle battery packs. 1/2-, 4/5- and 5/4-sub-C sizes (differing in length) are also popular. |
5.9 1/2AA
|
|
Most common name | 1/2AA |
---|---|
Other Common Names | SAFT LS14250, Tadiran TL5101, UL142502P |
IEC Name | CR14250 (Li-MnO2), ER14250 (Li-SOCl2) |
ANSI/NEDA Name | |
Typical Capacity (mA·h) | 850–1200 mAh |
Nominal Voltage (V) | 3.0 (Li-MnO2), 3.6 (Li-SOCl2) |
Shape | Cylinder |
Terminal layout | + Nub cylinder end, − Flat opposite end |
Dimensions | L 24.0 mm, D 13.5–14.5 mm |
Comments | Same diameter as AA battery, used in small electronics, including pulse oximeters, as well as use in some computer models (such as the Power Mac G4 and some older IBM PC compatibles) as the CMOS battery |
6 Camera batteries
Digital and film cameras often use specialized primary batteries to produce a compact product. Flashlights and portable electronic devices may also use these types.
6.1 CR123A
A lithium primary battery, not interchangable with zinc types. A recharageble lithium-polymer version is available in the same size and is interchangeable in some uses.
|
|
Most common name | CR123A |
---|---|
Other Common Names | Camera Battery, 123, CR123, 17345, 16340, CR-123A |
IEC Name | CR17345 (lithium) |
ANSI/NEDA Name | 5018LC (lithium) |
Typical Capacity (mA·h) | 1500 (lithium primary), 700 (Li–ion rechargeable) |
Nominal Voltage (V) | 3 (lithium), 3.6 (Li-ion) |
Shape | Cylinder |
Terminal layout | + Nub cylinder end, − Flat opposite end |
Dimensions | L 34.5 mm, D 17 mm |
Comments | CR (cylindrical lithium) 1 X 2/3A which breaks down further as 2/3 the size of an 'A' cell (an 'A' size cell is an industrial size) |
6.2 CR2
Another lithium primary battery.
Most common name | CR2 |
---|---|
Other Common Names | 15270 (Li-Ion Rechargeable) |
IEC Name | CR17355 |
ANSI/NEDA Name | 5046LC |
Typical Capacity (mA·h) | 750 (lithium) |
Nominal Voltage (V) | 3 (lithium), 3.6 (Li-ion) |
Shape | Cylinder |
Terminal layout | + Nub cylinder end, − Flat opposite end |
Dimensions | L 27 mm × D 15.6 mm |
Comments | Standard Discharge Current: 10 mA common battery in cameras and photographic equipment |
6.3 2CR5
|
Most common name | 2CR5 |
---|---|---|
Other Common Names | EL2CR5, DL245, RL2CR5 | |
IEC Name | 2CR5 | |
ANSI/NEDA Name | 5032LC[9] | |
Typical Capacity (mA·h) | 1500 | |
Nominal Voltage (V) | 6 | |
Shape | Double cylinder | |
Terminal layout | Both on one end | |
Dimensions | 45 × 34 × 17 mm | |
Comments | Commonly used in film and digital cameras. Shaped so that it can be inserted into a battery compartment only one way. |
6.4 CR-V3
A lithium primary battery, same size as two R6 (AA) cells side by side. A rechargeable type also is also made in this size.
Most common name | CR-V3 |
---|---|
Other Common Names | CRV3, RCR-V3 (Li-ion) |
IEC Name | |
ANSI/NEDA Name | 5047LC, 5047LF (primary)[10] |
Typical Capacity (mA·h) | 3000 (lithium), 1300 (Li-ion) |
Nominal Voltage (V) | 3 (lithium), 3.6 (Li-ion) |
Shape | Flat pack |
Terminal layout | Both on one end |
Dimensions | 52.20 × 28.05 × 14.15 mm |
Comments | may be used in some devices not explicitly designed for CR-V3, especially digital cameras. |
6.5 J
Most common name | J |
---|---|
Other Common Names | 7K67 |
IEC Name | 4LR61 (alkaline) |
ANSI/NEDA Name | 1412A (alkaline) |
Typical Capacity (mA·h) | 625 (alkaline) |
Nominal Voltage (V) | 6 |
Shape | Rectangular, with missing corner |
Terminal layout | Flat contacts, − top side, + missing corner |
Dimensions | H 48.5 mm, L 35.6 mm, W 9.18 mm |
Comments | Typically used in applications where the device in question needs to be flat, or where the battery should be unable to be put in reverse polarity—such as a blood glucose meter or blood pressure cuff. Also good for elderly persons, due to the large size. Often contains 4 AAAAcells, similar to a nine-volt battery. |
7 Button / coin / watch / micro / miniature
7.1 Lithium coin/button cells
Coin-shaped cells are thin compared to their diameter. The metal can is the positive terminal, and the cap is the negative terminal.
CR denotes lithium manganese dioxide chemistry. Since LiMnO2 cells produce 3 volts there are no widely available alternate chemistries for a CR coin battery. Conversely, one LiMnO2 cell can replace two alkaline or silver-oxide cells.
All these lithium cells are rated nominally 3 volts (on-load), with open circuit voltage about 3.6 volts. The IEC "CR" prefix indicates a round, lithium/manganese dioxide cell. Some sizes are also designated with a "BR" prefix, indicating a round lithium/carbon monofluoride cell. See lithium battery for discussion of the different performance characteristics. Manufacturers may have their own part numbers for IEC standard size cells. The capacity listed is for a constant resistance discharge down to 2.0 volts per cell.
IEC 60086 designation |
ANSI C18/NEDA designation | Typical Capacity Ah | Dimension (mm) DiameterxHeight |
Comments |
---|---|---|---|---|
CR927 | 30 | 9.5 × 2.7 | This obscure type of lithium coin cell is used extensively in blinkies. | |
CR1025 | 5033LC | 30 | 10 × 2.5 | Standard Discharge Current: 0.1 mA |
CR1216 | 5034LC | 25 | 12.5 × 1.6 | Standard Discharge Current: 0.1 mA |
CR1220 | 5012LC | 35–40 | 12.5 × 2.0 | Standard Discharge Current: 0.1 mA, 0.03 mA (BR) |
CR1225 | 5020LC | 50 | 12.5 × 2.5 | Standard Discharge Current: 0.2 mA. Maximum discharge current: 1 mA. Maximum pulse discharge current: 5 mA. {Energizer [1]says this type is obsolete.} |
CR1616 | 50–55 | 16 × 1.6 | Standard Discharge Current: 0.1 mA | |
CR1620 | 5009LC | 75–78 | 16 × 2.0 | Standard Discharge Current: 0.1 mA |
CR1632 | 140 120 (BR) |
16 × 3.2 | Standard Discharge Current: 0.1 mA, 0.03 mA (BR) | |
CR2012 | 55 | 20 × 1.2 | Standard Discharge Current: 0.1 mA | |
CR2016 | 5000LC | 90 | 20 × 1.6 | Standard Discharge Current: 0.1 mA, 0.03 mA (BR). Often used in pairs instead of CR2032 for devices that require more than 3 V, like blue/white LED flashlights. |
CR2025 | 5003LC | 160–165 | 20 × 2.5 | Standard Discharge Current: 0.2 mA. |
CR2032 | 5004LC | 225 (CR) 190 (BR) |
20 × 3.2 | Standard Discharge Current: 0.2 mA, 0.03 mA (BR). Maximum discharge current: 3 mA. Maximum pulse discharge current: 15 mA. |
CR2320 | 110-175
[12] |
23 × 2 | 3V | |
CR2325 | 165-210 | 23 × 2.5 | 3V | |
CR2330 | 265 255 (BR) |
23 × 3.0 | Standard Discharge Current: 0.2 mA, 0.03 mA (BR) | |
CR2354 | 560 | 23 × 5.4 | Standard Discharge Current: 0.2 mA | |
CR2430 | 5011LC | 270–290 | 24.5 × 3.0 | |
CR2450 | 5029LC | 610–620 | 24.5 × 5.0 | Portable devices requiring high current (30 mA) and long shelf life (up to 10 years) |
CR2477 | 1000 | 24.5 x 7.7 | Standard Discharge Current: 0.2 mA | |
CR3032 | 500–560 500 (BR) |
30.0 × 3.2 | Standard Discharge Current: 0.2 mA, 0.03 mA (BR) | |
CR11108 | 160 | 11.8 x 11 | Also called CR1/3N because it is one third the height of an alkaline N cell, and a stack of three of them will form a battery with the same dimensions as an N cell but with 9 V terminal voltage. Such 9 V batteries in a single package do exist but are rare and only usually found in specialist applications. Such a battery can be referred to as 3CR1/3N. However 2CR1/3N, a 6V battery consisting internally of a stack of two CR1/3N is sold by Duracell, Energizer and others. |
7.2 Button cells (silver oxide and alkaline)
SR/LR/AG/SG Button Cells: IEC SR series batteries are silver oxide chemistry and provide 1.55 volts, while IEC LR series batteries are alkaline chemistry and provide 1.5 volts. Similarly, SG prefix batteries are the silver oxide chemistry version of the alkaline AG prefix. Since there are no 'common' names beyond the AG designation, many vendors use these four designations interchangeably for the same sized cell, and they will all fit and work. The only difference is that silver oxide chemistry typically has 50% greater capacity than alkaline chemistry and usually a flat discharge characteristic (constant voltage), while the voltage of an alkaline battery decreases with use; and alkaline batteries are cheaper than silver. The capacity of a silver battery may be twice that of an alkaline. For devices which require a steady voltage such as photographic light meters and those which fail to operate below a certain voltage—some digital calipers do not work below 1.38V— a silver cell with flat discharge characteristic is indicated. Inexpensive devices are sometimes supplied fitted with alkaline batteries, though they would benefit from silver.
Round button cells have heights less than their diameter. The metal can is the positive terminal, and the cap is the negative terminal. Button cells are commonly used in electricwatches, clocks, and timers. IEC batteries that meet the international IEC 60086-3 standard for watch batteries carry a "W" suffix. Other uses include calculators, laser pointers, toys,LED "blinkies", and novelties.
Sizes are shown for the silver-oxide IEC number; types and capacity are identified as (L) for alkaline and (S) for silver-oxide.
Most Common Name |
Other Common Names |
IEC Name |
ANSI/NEDA Name |
Typical Capacity (mAh) |
Dimensions (mm) Diameter x Height |
Comments |
---|---|---|---|---|---|---|
SR41 | AG3/SG3 LR41 192/384/392 |
LR736 (L) SR736 (S) |
1135SO (S) 1134SO (S) |
25–32 (L) 38–45 (S) |
7.9 × 3.6 | |
SR43 | AG12/SG12 LR43 186/301/386 |
LR1142 (L) SR1142 (S) |
1133SO (S) 1132SO (S) |
80 (L) 120–125 (S) |
11.6 × 4.2 | |
SR44 | AG13/SG13 LR44/LR154 A76/S76 157/303/357 |
LR1154 (L) SR1154 (S) |
1166A (L) 1107SO (S) 1131SOP (S) |
110–150 (L) 170–200 (S) |
11.6 × 5.4 | |
SR45 | AG9/SG9 LR45 194/394 |
LR936 (L) SR936 (S) |
48 (L) 55–70 (S) |
9.5 × 3.6 | ||
SR48 | AG5/SG5 LR48 193/309/393 |
LR754 (L) SR754 (S) |
1136SO (S) 1137SO (S) |
52 (L) 70 (S) |
7.9 × 5.4 | |
SR54 | AG10/SG10 LR54 189/387/389/390 LR1130/SR1130 |
LR1131 (L) SR1131 (S) |
1138SO (S) | 44–68 (L) 80–86 (S) |
11.6 × 3.1 | |
SR55 | AG8/SG8 LR55 191/381/391 LR1120/SR1120 |
LR1121 (L) SR1121 (S) |
1160SO (S) | 40–42 (L) 55–67 (S) |
11.6 × 2.1 | |
365,366,S16,608 | SR1116SW | 28-40[14] | 11.6 x 1.65 | 1.55V | ||
SR57 | AG7/SG7 LR57 195/395/399 LR927/SR927 SR927W/GR927 |
LR926 (L) SR926 (S) |
116550 (S) | 46 (L) 55–67 (S) |
9.4 × 2.6 | |
SR58 | AG11/SG11 LR58 162/361/362 |
LR721 (L) SR721 (S) |
1158SO (S) | 18–25 (L) 33–36 (S) |
7.9 × 2.1 | |
SR59 | AG2/SG2 LR59 196/396/397 |
LR726 (L) SR726 (S) |
1163SO (S) | 26 (L) 30 (S) |
7.9 × 2.6 | |
SR60 | AG1/SG1 LR60 164/364 |
LR621 (L) SR621 (S) |
1175SO (S) | 13 (L) 20 (S) |
6.8 × 2.1 | |
SR63 | AG0/SG0 LR63 379 |
LR521 (L) SR521 (S) |
10 (L) 18 (S) |
5.8 × 2.1 | ||
SR66 | AG4/SG4 LR66 177/377 SR626SW |
LR626 (L) SR626 (S) |
1176SO (S) | 12–18 (L) 26 (S) |
6.8 × 2.6 | |
SR69 | AG6/SG6 LR69 171/371 LR920/SR920 |
LR921 (L) SR921 (S) |
30 (L) 55 (S) |
9.5 × 2.1 | ||
SR516 | SR516SW 317 |
LR516 (L) SR516 (S) |
11 (S) | 5.8 x 1.6 | ||
SR416 | SR416SW 337 |
LR416 (L) SR416 (S) |
8 (S) | 4.8 x 1.6 | ||
LR932 | LR932 (L) | 40 (L) | 9.3 × 3.2 | Rarely used independently. 8 of these in series used in A23 battery. |
7.3 Zinc air button cells (hearing aid)
Miniature zinc-air batteries are button cells that use oxygen in air as a reactant and have very high capacity for their size. Each cell needs around 1 cubic centimeter of air per minute at a 10 mA discharge rate. These cells are commonly used in hearing aids. A sealing tab keeps air out of the cell in storage; a few weeks after breaking the seal the electrolyte will dry out and the battery become unusable, regardless of use. Nominal voltage on discharge is 1.2 volts.
Most Common Name |
Other Common Names |
IEC 60086 Name |
ANSI/NEDA Name |
Typical Capacity (mAh) |
Dimensions (mm) Diameter x Height |
Comments |
---|---|---|---|---|---|---|
5 | AC5 | PR63 | 7012ZD | 33 | 5.8 × 2.5 | Marked as "discontinued" in Energizer data sheet [15] |
10 | yellow tab | PR70 | 7005ZD | 91 | 5.8 × 3.6 | |
13 | orange tab | PR48 | 7000ZD | 280 | 7.9 × 5.4 | |
312 | brown tab | PR41 | 7002ZD | 160 | 7.9 × 3.6 | |
675 | blue tab | PR44 | 7003ZD | 600 | 11.6 × 5.4 | |
AC41E | PR43 | 7001Z | 390 | 11.6 × 4.2 | Discontinued |