Nickel-Metal Hydride Batteries, often called NiMH batteries, are rechargeable energy storage devices commonly used in various electronics, such as digital cameras and hybrid vehicles. They consist of a nickel oxide hydroxide positive electrode and a hydrogen-absorbing alloy negative electrode, allowing them to store and release energy efficiently. These batteries are known for their higher capacity compared to traditional Nickel-Cadmium (NiCd) batteries, making them a popular choice for powering devices that require longer usage times. Additionally, NiMH batteries are more environmentally friendly, as they do not contain toxic cadmium, making them safer for both users and the planet.