Vernier Software and Technology
Vernier Software & Technology
Tech Info Library

LabQuest 2 Battery Troubleshooting and FAQs

LabQuest 2
This information pertains to LabQuest 2.
If you have an original LabQuest, see Original LabQuest Battery Troubleshooting and FAQs

For information related to LabQuest Stream, see TIL 3671: LabQuest Stream Battery Troubleshooting and FAQ

When fully charged, a LabQuest 2 will run an entire school day in the most common use scenarios. Although warranted for one year, the LabQuest 2 battery should last for three years or more depending on how it is used.

If you are having problems with your LabQuest 2 battery, follow the troubleshooting steps below.

1. First use of LabQuest 2
LabQuest 2 ships with a plastic tab that prevents the battery from making contact with the LabQuest unit during shipping. You need to remove this tab in order to charge the battery. For more information, see TIL 2692: My brand new LabQuest 2 battery doesn't work.

2. Check software version.
We recommend you update your LabQuest 2 to the most recent version available. Instructions on how to download and install the free update are posted at

Note: When having battery issues, we recommend you recalibrate the battery monitor after applying the update.

3. Recalibrate battery monitor.
a. If LabQuest is on, shut down the LabQuest by choosing Home / System / Shut down.
b. Remove the battery and disconnect the AC power adapter.
c. Wait at least one minute.
d. Connect the AC power adapter.
e. Press the power button to power on the device and wait for the device to boot.
f. Return the battery to its original position in the LabQuest.
g. Let the battery charge for 12 hours.

4. Run a battery test.
If none of these describe your problem, it is possible that the battery is no longer usable and may need to be replaced. To test your battery, see TIL 2921: How do I test the battery life of the LabQuest 2?

5. Replace the battery, if necessary.
If the battery still does not hold a change and is more than one year old, you may order a new battery from our website:
LabQuest 2 and LabQuest Stream Battery, order code LQ2-BAT, $19
If the battery is less than one year old, please contact Vernier Technical Support:

Related LabQuest 2 Battery Tips, Care, and Maintenance
     TIL 1768: How long will the LabQuest battery pack last?
     TIL 1780: Optimizing LabQuest battery life
     TIL 2518: How do I calibrate the original LabQuest battery indicator?
     TIL 2018: What is the best way to store LabQuest units over summer vacation?
     TIL 2763: What does the battery icon on my LabQuest 2 mean?
     TIL 4421: What is the shelf life of a new LabQuest 2 replacement battery?

Other Known Battery-related Issues
     TIL 3215: My LabQuest 2 won't charge the battery or says the battery is bad when it's not.
     TIL 2692: My brand new LabQuest 2 battery doesn't work.
     TIL 2082: My LabQuest was subjected to extreme temperatures and now it discharges quickly.
     TIL 2077: Original LabQuest Battery Troubleshooting and FAQs
     TIL 2987: My LabQuest 2 battery indicator is red, what does that mean?
     TIL 3023: The battery on my LabQuest 2 is swollen.

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