3000mAh
3000mAh refers to a battery capacity rating. mAh stands for milliampere-hour, which is a unit of electric charge. A battery with a 3000mAh capacity can theoretically supply a current of 3000 milliamperes (or 3 amperes) for one hour, or 300 milliamperes for ten hours, and so on. It is a common capacity for batteries found in portable electronic devices such as smartphones, power banks, and wireless headphones. Higher mAh ratings generally indicate a larger battery capacity, meaning the device can operate for a longer period between charges. However, actual battery life is also influenced by factors like the device's power consumption, screen brightness, and background processes. When comparing batteries, mAh is a key specification to consider for understanding potential runtime. It is important to note that mAh is a measure of capacity, not power.