Button Batteries

Button batteries, also referred to as coin cells, coin batteries or button cells are circular non-rechargeable batteries. They are used to power electronic devices.

Sizes:
The most common naming standard is from the International Electrotechnical Commission or IEC. This typically consists of 2 letters, followed by 3 or 4 numbers.

The first letter defines the chemisty:
L – Alkaline manganese dioxide
S – Silver oxide
P – Zinc-air
C – Lithium manganese dioxide
B – Lithium carbon monofluoride
G – Lithium copper oxide

The second letter defines the shape:
R – Round
F – Flat
S – Square
P – All others that aren’t defined as round, flat or square.

The numbers that follow the letters reference the diameter and the height. If the number ends with 1025, the battery has a 10 mm diameter and a 2.5 mm height.

Applications:
Due to their size, button batteries are used for smaller electronic devices. Standard domestic applications include watches, scales, remote controls and calculators. They can be found in greeting cards, and are used to power small LEDs or speakers within the card.

Coin batteries can also be used to power medical devices such as hearing aids, implantable defibrillators and pacemakers.


Which battery?
Coin batteries have a very long shelf life. They have low levels of self-discharge which means they are able to hold their charge for a long time without losing any power. Coin cells are constructed with 1 of 3 types of battery chemistry. This can help you to choose the most suitable battery for your application.

Alkaline button batteries:
These are an economic solution as they are cheaper than lithium or silver oxide batteries. They do not maintain constant voltage throughout their lifespan like other batteries do. This means that the voltage drops consistently and they typically last half as long as lithium or silver oxide batteries. They have less capacity than silver oxide and lithium batteries.

Silver oxide and lithium button batteries:
Lithium and silver oxide coin batteries have stable voltage throughout their lifespan. Unlike alkaline batteries, they are subject to a drop in voltage quite suddenly as they approach end of life. They are more resistant to corrosion and have better leakage resistance. The main difference between silver oxide and lithium batteries is the voltage. Lithium batteries provide voltage of 3 V while silver oxide batteries offer 1.5 V.

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Beskrivning Pris Model Number Size IEC Name Chemistry Nominal Voltage Capacity Terminal Type Diameter Dimensions Series
RS-artikelnummer 183-4297
VarumärkeRS PRO
9,786 kr
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CR1225 CR1225 - Lithium Manganese Dioxide 3V 50mAh - 12.5mm 12.5 Dia. x 2.5mm CR
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- CR2032 - - - - - - - -
RS-artikelnummer 183-4285
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- LIR1254 - Lithium 3.7V 45mAh - 12mm 12 Dia. x 5.4mm -
RS-artikelnummer 593-401
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- SR41 - Silver Oxide 1.55V 42mAh Standard 7.9mm 7.9 x 3.6mm -
RS-artikelnummer 595-659
VarumärkeRS PRO
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- SR55 - Silver Oxide 1.55V 40mAh Standard 11.6mm 11.6 x 2.1mm -
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RS-artikelnummer 188-2113
Tillv. art.nr20361903501
VarumärkeVarta
9,382 kr
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20361 SR58 - KOH Electrolyte, Silver Oxide, Zinc 1.55V 22mAh - 7.9mm 7.9 Dia. x 2.1mm V MF
RS-artikelnummer 186-3326
Tillv. art.nr97382812
VarumärkeMurata
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1 Tray of 25
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- CR1620 - Lithium Manganese Dioxide 3V 80mAh - 16mm 16 Dia. x 2mm CR
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RS-artikelnummer 191-8140
Tillv. art.nr97384162 SR920/8MR1WW
VarumärkeMurata
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SR920 - - Silver Oxide 1.55V 40mAh Flat 9.5mm 9.5 Dia. x 2.05mm -
RS-artikelnummer 597-368
Tillv. art.nrBR-2330/GUN
VarumärkePanasonic
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- BR2330 - Lithium Polycarbon Monofluoride 3V 225mAh PCB Pin 23mm 23 x 3mm -
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- CR1632 - Lithium Manganese Dioxide 3V 140mAh PCB Pin 16mm 16 x 3.2mm -
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RS-artikelnummer 187-8301
Tillv. art.nrE301319200
VarumärkeEnergizer
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- CR2032 - - - - - - - -
RS-artikelnummer 597-396
Tillv. art.nrBR-2032/GUN
VarumärkePanasonic
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- BR2032 - Lithium Polycarbon Monofluoride 3V 190mAh PCB Pin 20mm 20 x 3.2mm -
RS-artikelnummer 514-7766
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- SR66 - Silver Oxide 1.55V 25mAh Standard 6.8mm 6.8 x 2.6mm -
RS-artikelnummer 183-4291
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- LIR2032 - Lithium 3.6V 40mAh - 20mm 20 Dia. x 3.2mm -
RS-artikelnummer 183-9474
Tillv. art.nrBR-1632/DBN
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- BR1632 - Lithium Polycarbon Monofluoride 3V 120mAh - 16mm 16 (Dia.) x 3.2mm BR
RS-artikelnummer 183-9485
Tillv. art.nrBR-2450A/GAN
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- BR2450A - Lithium Polycarbon Monofluoride 3V 550mAh - 24.5mm 24.5 (Dia.) x 5mm BR
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RS-artikelnummer 191-5226
Tillv. art.nr97384194
VarumärkeMurata
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CR2032R-HE1 - CR2032 Lithium Manganese Dioxide 3V 200mAh Flat 9.5mm 9.5 Dia. x 2.7mm -
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RS-artikelnummer 188-1986
Tillv. art.nr20384903501
VarumärkeVarta
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20384 SR41 - NaOH Electrolyte, Silver Oxide, Zinc 1.55V 37mAh - 7.9mm 7.9 Dia. x 3.6mm V MF
RS-artikelnummer 183-4284
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- CR2354 - Lithium Manganese Dioxide 3V 560mAh PCB Pin 23mm 23 x 5.4mm -