To store LabQuest units over the summer, shut them down and store them disconnected from a charger. To fully shut down LabQuest 2, press and hold the power button until the Shutdown message is displayed (~5 seconds) before storing it. To fully shut down original LabQuest, press and hold the power button (~3 seconds) until the screen turns black. On LabQuest 2, you should remove the battery for long-term storage, (for original LabQuest, the risk of stripping the screws/damaging the connector is too high to justify that).
Over the summer, the battery will slowly lose its charge, but will be undamaged. When you return in the fall, we recommend that you charge all LabQuest units for a full 8 hours before using them. When you first turn it on, it may take as long as 3 minutes for LabQuest to reboot if the battery completely lost charge.
Exposing the battery to temperatures over 35°C (95°F) will significantly reduce its lifespan. If your school storage area is especially hot when the air conditioning is off for the summer, you may want to keep it in a location that remains cooler.
More details on the longevity of the battery can be found at:
TIL 1768: How long will the LabQuest battery pack last?
TIL 1060: Do any of your sensors require special storage?
TIL 2741: LabQuest 2 Battery Troubleshooting and FAQs
TIL 1517: How should I organize my Vernier equipment?
TIL 745: Do you know of a good case for carrying LabQuests, LabPros, calculators, and/or sensors?
TIL 2377: How should I wrap my sensor cable?
TIL 2261: How do I delete the data files that my students save to the LabQuest?
TIL 3031: LabQuest 2 screen flashes white, and then black, when I turn it on.