The energy of heating one litre of water is about 6.19 times the energy of a phone battery. Selected basis: approximate values.
ENERGY STORED OR TRANSFERRED
Bar length represents energy. Equal energy does not imply the same temperature, power or usefulness.
334.4 kJ - Energy; defined energy model.
Heating one litre of water is the energy required to raise the temperature of a standard amount of water to near boiling.
An ideal model: 1 kg water heated by 80 K at 4,180 J/(kg·K). Excludes heat losses and phase change.
Defined examples — our methodology54 kJ - Energy; defined energy model.
A phone battery stores electrical energy to power a mobile phone.
A defined 15 Wh stored-energy battery. Actual devices and usable energy vary.
Defined examples — our methodology
There’s always another scale
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.
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.
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
Illustrative artwork · not to scale
Illustrative artwork · not to scale
Illustrative artwork · not to scale
Illustrative artwork · not to scaleGot a good eye for scale?