Coin cell stored energy
Coin cell stored energy is the total electrical energy that can be delivered by a small, disc-shaped lithium battery before depletion.
Also known as: CR2032 stored energy, coin battery energy
How big is it?
2.43 kJ · defined nominal stored energy
Defined nominal stored energy · derived specification
Typical recorded range: 2.2 kJ to 2.6 kJ.
A little perspective
Coin cell stored energy vs Food kilocalorie: energy comparison
The energy of a food kilocalorie is about 1.72 times the energy stored in a coin cell.
ENERGY STORED OR TRANSFERRED
Coin cell stored energy is the total electrical energy that can be delivered by a small, disc-shaped lithium battery before depletion.
A food kilocalorie is the energy needed to raise the temperature of one kilogram of water by one degree Celsius, used to express food energy.
Measurements, assumptions & sources +
Coin cell stored energy
Defined nominal stored energy: 2.43 kJ; derived specification; range 2.2 kJ–2.6 kJ.
A defined CR2032 lithium coin cell rated at 3 V and 225 mAh stores a nominal 2,430 J by voltage × ampere-hours × 3,600. Delivered energy depends on load, cutoff voltage, temperature and ageing.
Energizer — CR2032 product datasheet
The marked defined nominal stored energy is calibrated. Unmeasured illustration details are representative.
Food kilocalorie
Energy: 4.184 kJ; defined energy model.
One thermochemical kilocalorie, the unit commonly written Calorie on food labels.
Defined examples — our methodology
The marked energy is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
Why this measurement?
Why we use 2.43 kJ
We compare the energy stored in a coin cell. The measurement is labelled derived specification. Check the source notes for its basis. The recorded range is 2.2 kJ to 2.6 kJ.
A defined CR2032 lithium coin cell rated at 3 V and 225 mAh stores a nominal 2,430 J by voltage × ampere-hours × 3,600. Delivered energy depends on load, cutoff voltage, temperature and ageing.
The picture identifies the subject; the diagram compares the recorded values. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 2.43 kJ | 2.2 kJ to 2.6 kJ | derived specification |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueEnergyGolf drive ball kinetic energy130 JDefined launch kinetic energyGolf drive ball kinetic energy is the amount of energy a golf ball possesses due to its motion immediately after being struck.
Nearest higher valueEnergyFood kilocalorie4.184 kJEnergyA food kilocalorie is the energy needed to raise the temperature of one kilogram of water by one degree Celsius, used to express food energy.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- Energizer — CR2032 product datasheetNominal 3 V lithium coin cell and representative 225 mAh capacity; stored energy is explicitly derived.
There’s always another scale
Follow your curiosity.
PowerQuartz watch10 µWThe average electrical power consumed by a quartz wristwatch during operation.
EnergyPhone battery54 kJA phone battery stores electrical energy to power a mobile phone.EnergyFood kilocalorie4.184 kJA food kilocalorie is the energy needed to raise the temperature of one kilogram of water by one degree Celsius, used to express food energy.
EnergyLaptop battery216 kJA laptop battery supplies electrical energy to a portable computer.EnergyGolf drive ball kinetic energy130 JGolf drive ball kinetic energy is the amount of energy a golf ball possesses due to its motion immediately after being struck.EnergyTennis ball serve kinetic energy120 JTennis ball serve kinetic energy is the amount of energy a tennis ball has due to its motion immediately after being struck during a serve.
EnergyHeat one litre of water334.4 kJHeating one litre of water is the energy required to raise the temperature of a standard amount of water to near boiling.
PowerSingle-mode laser pointer optical output5 mWSingle-mode laser pointer optical output is the continuous visible light power emitted by a standard handheld laser pointer operating in a single spatial mode.