FARO features an 1850 mAh, rechargeable, lithium-polymer battery, which takes around 3 hours to charge fully. Fully charged, it can last 3 to 10 hours of continuous use - depending on the settings chosen (light intensity, behaviors, sensor sensitivity, etc). In real life, this should allow a 'once a week' charge for most users. As a nice bonus, when the helmet is off, passive battery consumption is close to zero - this way, FARO can hold its battery for a long time when off.