If your Repulsor Gear, Power Activator, or Prowler Bot stops working, you may need to replace the batteries.

J.A.R.V.I.S. will warn you when your batteries are getting low, but if you miss his message your Gear could shut down seemingly without warning. Simply place a fresh set of batteries in your Repulsor Gear, Power Activator, or Prowler Bot, and get back to saving the world