Phone battery
A phone battery stores electrical energy to power a mobile phone.
54 kJEnergyEveryday quantities
Phone battery vs Laptop 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
Laptop battery
A laptop battery supplies electrical energy to a portable computer.
216 kJEnergyLaptop battery has about 4 times the energy of Phone battery.
01
Phone battery54 kJEnergy
02
Laptop battery216 kJEnergy
Bar length represents energy. Equal energy does not imply the same temperature, power or usefulness.
Measurements, assumptions & sources +
Phone battery
A defined 15 Wh stored-energy battery. Actual devices and usable energy vary.
Defined examples — our methodology
The marked energy is calibrated. Unmeasured illustration details are representative.
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.
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.
Phone battery
54 kJEnergy · defined energy model
A defined 15 Wh stored-energy battery. Actual devices and usable energy vary.
Laptop battery
216 kJEnergy · defined energy model
A defined 60 Wh battery. This is stored energy, not device power.
- Comparing
- Energy ↔ Energy
- Relative size
- Laptop battery is larger on this measurement by a factor of about 4. Laptop battery's selected measurement is approximately 300% greater than Phone battery's.
How to read the visual
The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.
- Phone battery is labelled defined energy model; treat the displayed value as a comparison anchor rather than false precision.
- Laptop 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.
EnergyPhone battery54 kJA phone battery stores electrical energy to power a mobile phone.EnergyLaptop battery216 kJA laptop battery supplies electrical energy to a portable computer.
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.
EnergyElectric car battery216 MJAn electric car battery stores energy to power an electric vehicle.
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.
