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, such as clocks, remote control toys and wristwatches.

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 chemistry:

  • 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 should I use?

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庫存編號 183-9494
製造零件編號CR-2PE/BN
BrandPanasonic
HK$51.98
單位
CR2 CR2 - Lithium Manganese Dioxide 3V 850mAh PCB Pin 15.6mm 15.6 x 27mm CR
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製造零件編號CR-2016/F2N
BrandPanasonic
HK$19.11
單位
CR2016 CR2016 CR2016 Lithium Manganese Dioxide 3V 90mAh PCB Pin 20mm 20 x 1.6mm CR
RS庫存編號 183-9475
製造零件編號BR-1632/HFN
BrandPanasonic
HK$41.28
單位
BR1632 BR1632 - Lithium Polycarbon Monofluoride 3V 120mAh PCB Pin 16mm 16 x 3.2mm BR
RS庫存編號 183-9492
製造零件編號CR-3032/F2N
BrandPanasonic
HK$83.60
單位
CR3032 CR3032 - Lithium Manganese Dioxide 3V 500mAh Standard 30mm 30 x 3.2mm CR
RS庫存編號 183-9473
製造零件編號BR-1225A/HBN
BrandPanasonic
HK$59.80
單位
BR1225 BR1225 - Lithium Polycarbon Monofluoride 3V 48mAh PCB Pin 12.5mm 12.5 x 2.5mm BR
RS庫存編號 183-9490
製造零件編號CR-2032/F2N
BrandPanasonic
HK$26.73
單位
CR2032 CR2032 CR2032 Lithium Manganese Dioxide 3V 225mAh PCB Pin 20mm 20 x 3.2mm CR
RS庫存編號 183-9486
製造零件編號BR-2477A/FBN
BrandPanasonic
HK$73.87
單位
BR2477A BR2477A - Lithium Polycarbon Monofluoride 3V 1Ah Standard 24.5mm 24.5 x 7.7mm BR
RS庫存編號 183-9482
製造零件編號BR-2330A/GAN
BrandPanasonic
HK$56.58
單位
BR2330 BR2330 - Lithium Polycarbon Monofluoride 3V 255mAh PCB Pin 23mm 23 x 3mm BR
RS庫存編號 183-9479
製造零件編號BR-2032/F2N
BrandPanasonic
HK$39.75
單位
BR2032 BR2032 - Lithium Polycarbon Monofluoride 3V 200mAh PCB Pin 20mm 20 x 3.2mm BR
RS庫存編號 183-9476
製造零件編號BR-1632A/FAN
BrandPanasonic
HK$48.95
單位
BR1632A BR1632A - Lithium Polycarbon Monofluoride 3V 120mAh PCB Pin 16mm 16 x 3.2mm BR
RS庫存編號 183-9493
製造零件編號CR-123PE/BN
BrandPanasonic
HK$62.37
單位
CR123A CR123A - Lithium Manganese Dioxide 3V 1.4Ah PCB Pin 17mm 17 x 34.5mm CR
RS庫存編號 183-9488
製造零件編號CR-1025/BN
BrandPanasonic
HK$20.23
單位
CR1025 CR1025 CR1025 Lithium Manganese Dioxide 3V 30mAh Standard 10mm 10 x 2.5mm CR
RS庫存編號 183-9474
製造零件編號BR-1632/DBN
BrandPanasonic
HK$26.48
單位
BR1632 BR1632 - Lithium Polycarbon Monofluoride 3V 120mAh Standard 16mm 16 x 3.2mm BR
RS庫存編號 183-9491
製造零件編號CR-2032/GVFN
BrandPanasonic
HK$26.09
單位
CR2032 CR2032 CR2032 Lithium Manganese Dioxide 3V 225mAh PCB Pin 20mm 20 x 3.2mm CR
RS庫存編號 183-9472
製造零件編號BR-1225A/FAN
BrandPanasonic
HK$71.76
單位
BR1225 BR1225 - Lithium Polycarbon Monofluoride 3V 48mAh PCB Pin 12.5mm 12.5 x 2.5mm BR
RS庫存編號 183-9485
製造零件編號BR-2450A/GAN
BrandPanasonic
HK$67.61
單位
BR2450A BR2450A - Lithium Polycarbon Monofluoride 3V 550mAh Standard 24.5mm 24.5 x 5mm BR
RS庫存編號 183-9481
製造零件編號BR-2330A/FAN
BrandPanasonic
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單位
BR2330 BR2330 - Lithium Polycarbon Monofluoride 3V 255mAh PCB Pin 23mm 23 x 3mm BR
RS庫存編號 183-9478
製造零件編號BR-1632A/HAN
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BR1632A BR1632A - Lithium Polycarbon Monofluoride 3V 120mAh PCB Pin 16mm 16 x 3.2mm BR
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RS庫存編號 183-9471
製造零件編號BR-1225A/BN
BrandPanasonic
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單位
BR1225 BR1225 - Lithium Polycarbon Monofluoride 3V 48mAh Standard 12.5mm 12.5 x 2.5mm BR