VARTA 4920121111
VARTA 4920121111 is a D-size alkaline battery, also known as LR20 or MN1300. It is used as a standard disposable battery source in equipment designed for this battery format and delivers a nominal voltage of 1.5 V.
The size is the classic D-format cylinder with a diameter of 34.2 mm and a length of 61.5 mm. This is important in practice because the battery compartment in the equipment must fit precisely, and because the battery type determines whether the device receives the voltage and physical size it is designed for.
The alkaline chemistry makes the battery a primary battery type, meaning it is not intended for recharging. In professional contexts, it is typically relevant in equipment where a simple power source is desired that can be replaced once depleted.
VARTA specifies the article number 04920 121 111 in the general catalog. The MPN is 4920121111.