This information pertains to LabQuest 3.

If you have a LabQuest 2, see this article.
If you have an original LabQuest, see this article.

Follow these steps to replace a LabQuest 3 battery:

  1. Turn the unit over being careful not to set the unit on something that could scratch the screen.
  2. Slide the battery door cover down until it releases, then lift it off the unit.
  3. Lift the battery from the right side and pull the battery to the right as you lift it out of the unit.
  4. When replacing the battery only use a battery provided by Vernier LabQuest® 3 Battery (LQ3-BAT).
  5. Make sure the battery contact points on both the unit and battery are clean and free of debris.
  6. Insert the new battery label side up, starting by putting the left edge in first.
  7. Carefully set the battery in place so as not to damage the battery contacts or plastic tabs that hold the battery against the contacts.
  8. Set the battery door in over the battery just below its closed position, then slide the door up until it latches.
  9. Charge the new battery at least 12 hours to ensure it is fully charged.