Phone battery
54 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 methodologyThe energy of a laptop battery is about 4 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.
54 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 methodology216 kJ - Energy; defined energy model.
A laptop battery supplies electrical energy to a portable computer.
A defined 60 Wh battery. This is stored energy, not device power.
Defined examples — our methodologyThere’s always another scale
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?