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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Description Price Model Number Size IEC Name Chemistry Nominal Voltage Capacity Terminal Type Diameter Dimensions Series
RS Stock No. 183-9488
Mfr. Part No.CR-1025/BN
BrandPanasonic
HK$16.99
Each
units
- CR1025 CR1025 Lithium Manganese Dioxide 3V 30mAh - 10mm 10 (Dia.) x 2.5mm CR
RS Stock No. 183-9489
Mfr. Part No.CR-2016/F2N
BrandPanasonic
HK$19.67
Each
units
- CR2016 CR2016 Lithium Manganese Dioxide 3V 90mAh - 20mm 20 (Dia.) x 1.6mm CR
RS Stock No. 183-9480
Mfr. Part No.BR-2330/HFN
BrandPanasonic
HK$39.40
Each
units
- BR2330 - Lithium Polycarbon Monofluoride 3V 255mAh - 23mm 23 (Dia.) x 3mm BR
RS Stock No. 183-9478
Mfr. Part No.BR-1632A/HAN
BrandPanasonic
HK$45.38
Each
units
- BR1632A - Lithium Polycarbon Monofluoride 3V 120mAh - 16mm 16 (Dia.) x 3.2mm BR
RS Stock No. 183-9490
Mfr. Part No.CR-2032/F2N
BrandPanasonic
HK$22.02
Each
units
- CR2032 CR2032 Lithium Manganese Dioxide 3V 225mAh - 20mm 20 (Dia.) x 3.2mm CR
RS Stock No. 183-9473
Mfr. Part No.BR-1225A/HBN
BrandPanasonic
HK$73.87
Each
units
- BR1225 - Lithium Polycarbon Monofluoride 3V 48mAh - 12.5mm 12.5 (Dia.) x 2.5mm BR
RS Stock No. 183-9481
Mfr. Part No.BR-2330A/FAN
BrandPanasonic
HK$56.20
Each
units
- BR2330 - Lithium Polycarbon Monofluoride 3V 255mAh - 23mm 23 (Dia.) x 3mm BR
RS Stock No. 183-9492
Mfr. Part No.CR-3032/F2N
BrandPanasonic
HK$68.85
Each
units
- CR3032 - Lithium Manganese Dioxide 3V 500mAh - 30mm 30 (Dia.) x 3.2mm CR
RS Stock No. 183-9475
Mfr. Part No.BR-1632/HFN
BrandPanasonic
HK$34.28
Each
units
- BR1632 - Lithium Polycarbon Monofluoride 3V 120mAh - 16mm 16 (Dia.) x 3.2mm BR
RS Stock No. 183-9484
Mfr. Part No.BR-2450A/FAN
BrandPanasonic
HK$66.82
Each
units
- BR2450A - Lithium Polycarbon Monofluoride 3V 550mAh - 24.5mm 24.5 (Dia.) x 5mm BR
RS Stock No. 183-9494
Mfr. Part No.CR-2PE/BN
BrandPanasonic
HK$51.37
Each
units
- - - Lithium Manganese Dioxide 3V 850mAh - 15.6mm 15.6 (Dia.) x 27mm CR
RS Stock No. 183-9487
Mfr. Part No.BR-2477A/GAN
BrandPanasonic
HK$83.62
Each
units
- BR2477A - Lithium Polycarbon Monofluoride 3V 1Ah - 24.5mm 24.5 (Dia.) x 7.7mm BR
RS Stock No. 183-9479
Mfr. Part No.BR-2032/F2N
BrandPanasonic
HK$32.74
Each
units
- BR2032 - Lithium Polycarbon Monofluoride 3V 200mAh - 20mm 20 (Dia.) x 3.2mm BR
RS Stock No. 183-9477
Mfr. Part No.BR-1632A/GAN
BrandPanasonic
HK$48.38
Each
units
- BR1632A - Lithium Polycarbon Monofluoride 3V 120mAh - 16mm 16 (Dia.) x 3.2mm BR
RS Stock No. 183-9472
Mfr. Part No.BR-1225A/FAN
BrandPanasonic
HK$59.10
Each
units
- BR1225 - Lithium Polycarbon Monofluoride 3V 48mAh - 12.5mm 12.5 (Dia.) x 2.5mm BR
RS Stock No. 183-9491
Mfr. Part No.CR-2032/GVFN
BrandPanasonic
HK$27.52
Each
units
- CR2032 CR2032 Lithium Manganese Dioxide 3V 225mAh - 20mm 20 (Dia.) x 3.2mm CR
RS Stock No. 183-9474
Mfr. Part No.BR-1632/DBN
BrandPanasonic
HK$26.17
Each
units
- BR1632 - Lithium Polycarbon Monofluoride 3V 120mAh - 16mm 16 (Dia.) x 3.2mm BR
RS Stock No. 183-9482
Mfr. Part No.BR-2330A/GAN
BrandPanasonic
HK$55.91
Each
units
- BR2330 - Lithium Polycarbon Monofluoride 3V 255mAh - 23mm 23 (Dia.) x 3mm BR
RS Stock No. 183-9493
Mfr. Part No.CR-123PE/BN
BrandPanasonic
HK$51.37
Each
units
- CR123A - Lithium Manganese Dioxide 3V 1.4Ah - 17mm 17 (Dia.) x 34.5mm CR
RS Stock No. 183-9486
Mfr. Part No.BR-2477A/FBN
BrandPanasonic
HK$91.25
Each
units
- BR2477A - Lithium Polycarbon Monofluoride 3V 1Ah - 24.5mm 24.5 (Dia.) x 7.7mm BR