Laptop battery
A laptop battery supplies electrical energy to a portable computer.
216 kJEnergyEveryday quantities
Laptop battery vs Electric car battery
What are they, and what does the difference actually look like?
Two things. One honest scale.
Meet the pair
What these two things are
Electric car battery
An electric car battery stores energy to power an electric vehicle.
216 MJEnergyElectric car battery has about 1,000 times the energy of Laptop battery.
01
Laptop battery216 kJEnergy
02
Electric car battery216 MJEnergy
Bar length represents energy. Equal energy does not imply the same temperature, power or usefulness.
Measurements, assumptions & sources +
Laptop battery
A defined 60 Wh battery. This is stored energy, not device power.
Defined examples — our methodology
The marked energy is calibrated. Unmeasured illustration details are representative.
Electric car battery
A defined 60 kWh battery; usable capacity and losses vary.
Defined examples — our methodology
The marked energy is calibrated. Unmeasured illustration details are representative.
Change the comparison
Put something else beside it.
Measurement details
Why these numbers?
The visual compares energy with energy. The records below preserve each value’s basis and caveats.
Laptop battery
216 kJEnergy · defined energy model
A defined 60 Wh battery. This is stored energy, not device power.
Electric car battery
216 MJEnergy · defined energy model
A defined 60 kWh battery; usable capacity and losses vary.
- Comparing
- Energy ↔ Energy
- Relative size
- Electric car battery is larger on this measurement by a factor of about 1,000.
How to read the visual
The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.
- Laptop battery is labelled defined energy model; treat the displayed value as a comparison anchor rather than false precision.
- Electric car battery is labelled defined energy model; treat the displayed value as a comparison anchor rather than false precision.
There’s always another scale
Follow your curiosity.
EnergyLaptop battery216 kJA laptop battery supplies electrical energy to a portable computer.EnergyElectric car battery216 MJAn electric car battery stores energy to power an electric vehicle.
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.
EnergyPhone battery54 kJA phone battery stores electrical energy to power a mobile phone.
EnergyOne second of sunlight3.828 × 10¹¹ PJThe total energy emitted by the Sun in all directions over one second.Side by side
Another point of view.
