Torches on AAA batteries

AAA

— also known as "little" batteries — by analogy with "finger" AA batteries (see the relevant paragraph). They have a slightly smaller size and capacity, but even these characteristics are often enough, given the modest power consumption of LEDs used in modern flashlights; and compactness is often more important than high capacity. Therefore, AAA elements in modern flashlights are much more common than AA.

Cells of this type can be produced both in the form of disposable batteries and in the form of rechargeable batteries. At the same time, both of them can differ markedly in capacity; accordingly, the battery life of a flashlight with such a power supply will be different — depending on the brand of batteries (accumulators) used. Also note that this type of power supply — like other types of replaceable cells — is inevitably associated with additional expenses: you will either have to regularly buy fresh batteries, or spend money on a set of batteries with a charger.