App creators who decide to spend $3,000 to get the Microsoft HoloLens Development Edition will find that the battery life for the augmented reality headset will last for between 2 to 3 hours.
Those numbers are revealed in the official hardware specs for the HoloLens, which adds that the headset has up to two weeks of standby time. The Development Edition can also be used when it's being charged up and is passively cooled, which means no noisy fans.
Keep in mind that while a battery life of up to 3 hours is pretty small, the HoloLens Development Edition is just the first version of the headset, and it's targeting developers and not the general public or businesses. It's likely we will see a boost in battery life when the first commercial version of the HoloLens is released.