The China 4LR44 battery 6V is a single cell battery with a nominal voltage of 6V. The maximum voltage varies within the range of 5.75-6.00V depending on the manufacturer, but is within this safe range for most applications.
A 4LR44 battery is a silver oxide watch or clock battery commonly used in electronic devices such as wristwatches, pocket watches, calculators and clocks. Silver oxide batteries are typically silver-colored button cell batteries with a nominal voltage of 1.5 volts. They have several advantages over other types of button cells because they can be used in applications where there are small physical restrictions such as in sticking out of small holes. This makes them ideal for use in toys and jewelry products.