Cr2032 batteries all nominally have a voltage of 3 volts and open circuit voltages of approximately 3 6 volts.
Cr2032 battery voltage new.
An insulated top cap is the negative terminal.
Lithium manganese dioxide cr2032 batteries supply reliable power to a wide variety of household electronics.
A watch battery or button cell is a small single cell battery shaped as a squat cylinder typically 5 to 25 mm 0 197 to 0 984 in in diameter and 1 to 6 mm 0 039 to 0 236 in high resembling a button a metal can forms the bottom body and positive terminal of the cell.
The longevity of your 3v battery cr2032 depends on how much power your device uses.
Type maximum current cr2032 10ma cr3032 15 ma.
However a cr2032 battery 3v can last up to 10 years when used in computer bios.
5 year warranty celewell 100 pack cr2032 battery 2032 ecr2032 230mah 3 volt lithium battery coin button cell 4 6 out of 5 stars 397 21 99 21.
For example say a cr2032 battery is used in sample circuit a in combination with a main power source 5 volt.
Typical discharge rate for cr2032 is in around 0 2 ma with the maximum continuous drain current of 3 ma and maximum pulse current of around 15 ma.
Two aspects of cr2032 lithium battery discharge performance need to be understood.
A cr2032 is a small coin shaped battery which uses manganese dioxide lithium chemistry with a diameter of 20 mm and a height of 3 2 mm.
Nominal voltage is 3 volts open circuit voltage of a new cell is 3 2 3 3 volts and cutoff voltage around 2 volts.
As can be seen below there s only 200 mv difference between 100 charge and 25 charge for a constant low current draw of 190ua.
3v of power and 240 mah capacity delivers a reliable long lasting charge to your electronics.
Typically they can last anywhere between 1 2 years.
Energizer lithium coin cell 2032 3v battery 2 per pack.
Firstly the voltage does not change very much over the first 75 of the discharge.