Cozmo's Cubes

Learn below everything you need to know about Cozmo's cubes.



What battery does the cube use?

  • Alkaline N / E90 / LR1 1.5 Volt batteries
  • Do not use A23 batteries - these will damage the Cube
  • Do not use rechargeable batteries - these will damage the Cube

How long does the battery last?

  • Batteries come pre-installed in Cozmo's Cube
  • Once the pull-tab is removed, the battery will start to lose charge
  • The battery will last 20-40 hours of gameplay depending on how much Cozmo interacts with the Cube
  • To test if the battery is working, reset the cube:
    • unscrew the lid from the cube
    • wait for 10 seconds
    • screw the lid back on
    • the cube should flash red>green>blue if the battery is fine
  • In Settings > Cube Status, there will be a red Low Battery icon if the battery does not have enough power to sync / connect and needs to be replaced. Note: the low battery icon does not indicate battery voltage

How do I change the battery?

  1. Remove the cube’s screw using a cross head screwdriver and open the cube’s cover
  2. Remove and safely dispose of the old battery
  3. Insert a new battery, positive end up
  4. Replace the cover and screw the cover back down (not too tightly which can damage the cube)

Battery_Diagram.png


How does Cozmo interact with his cubes?

Cozmo interacts with his cubes on two levels: 

  • Visually: Cozmo can tell the difference between each cube by its markings. He can recognize the cube even without a battery

  • Wirelessly: Cozmo can connect wirelessly to each of his cubes if it is nearby. If a cube is too far away or the battery is low or dead, Cozmo may not be able to sync with it

Indicators of cubes not working correctly

  • One of all of the cubes LEDs do not light up but cube is detected in the “Settings > Cube status” menu
  • Cozmo is unable to detect a cube
  • Cozmo loses connection to a cube

Troubleshooting

  • If only one cube seems to be problematic, you may switch the batteries of a working cube to check if this is due to a dead battery
  • Reset the cube:
    • unscrew the lid from the cube
    • wait for 10 seconds
    • screw the lid back on
    • the cube should flash red>green>blue if the battery is fine
  • Move the cubes nearer to Cozmo
  • Check the cubes are synced in “settings > cube status”
    • when connected, you should see a green check
    • if Cozmo is unable to sync to a cube, it will say, "not connected"
    • tap "auto connect to cubes" to re-sync the cubes, especially after resetting or changing the battery

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