The term "1.2 volts" refers to a specific measurement of electrical potential difference. It is commonly associated with rechargeable batteries, such as nickel-cadmium (NiCd) and nickel-metal hydride (NiMH) batteries, which typically have a nominal voltage of 1.2 volts per cell. This voltage is crucial for powering various electronic devices, ensuring they operate efficiently. In practical terms, 1.2 volts is lower than the standard 1.5 volts found in non-rechargeable alkaline batteries. However, rechargeable batteries can be recharged multiple times, making them a more sustainable option for powering gadgets like remote controls, flashlights, and digital cameras.