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What are battery sizes

Cindy / 2014-06-21
[B] [M] [S]

 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

A zinc-carbon N size battery.

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

Internal parts of a battery, cylindrical case metal can, round terminals
Disassembled 18650 showing the internal coiled flat-pack lithium polymer cell

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

Lantern battery
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

 
 
A 3R12 battery compared in size to a match.
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

 
A 1/2AA battery compared in size to a AA battery.
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.

 
A CR123A battery compared in size to common items.
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

 
2CR5 Lithium Battery
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 cells of various diameters and thicknesses.

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)

Several sizes of button and coin cells. Some are alkaline and others are silver oxide. 2 9v batteries were added as a size comparison. Enlarge to see the button and coin cells’ size code markings.
See also: button cell

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)

 
Zinc-air hearing aid batteries

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
 

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