What is the battery life of Hammerhead One? Ajay April 13, 2017 08:48 Updated Follow The device is equipped with a 495 mAh lithium polymer battery. It lasts for 7-9 hours on ride once fully charged. Related articles Unboxing & Setup Why there is no user manual? How do I make a route in General? Why is the USB port open? How do I set up Karoo? Comments 0 comments Please sign in to leave a comment.