Check battery charging status
The Chrome Shell (CROSH) includes a simple battery health diagnostic test. This is to confirm that the battery is charging and to check on the battery health and discharge rate. Follow the instruction provided to check on the battery charging status:
- Connect the AC adapter to the Chromebook and a power outlet.
- Turn on, and sign in to the Chromebook.
- Open the Chrome browser.
- Press CTRL + ALT + T to open CROSH.
- Type battery_test 1 into CROSH, and then press Enter.
- Check the result to confirm that the battery is charging.
Check battery health
Follow the steps to evaluate the health of the Chromebook battery, and check the discharge rate:
- Disconnect the AC adapter from the Chromebook.
- Turn on and sign in to Chromebook.
- Open the Chrome browser.
- Press CTRL + ALT + T to open CROSH.
- Type battery_test 1 into CROSH, and then press Enter.
- A screen displays the current battery health and
discharge rate.
- If the Battery health percentage is greater than 50%, the battery is within the expected wear limits.
- If the Battery health percentage is equal to or less than 50% and the battery is less than a year old, the battery is outside expected wear limits and might need to be replaced.
- If the test results show that Battery is Unknown, the battery might need to be replaced.
Checking memory
Follow the steps below to perform a memory check for Chromebook:
NOTE This will approximately
take 20 minutes to complete the test, and it also depends on the capacity
of the memory.
- Turn on and sign in to Chromebook.
- Open the Chrome browser.
- Press CTRL + ALT + T to open CROSH.
- Type memory_test into
CROSH, and then press Enter.
- A diagnostic screen displays the result of the memory
test passed without any errors.
Example of a memory test failure.
Checking network status
If you are having trouble connecting to the Internet, use the steps in one or more of the following sections to test the network adapter:
Follow the instruction to gather the information about the network and diagnose the network errors.
- Turn on and sign in to Chromebook.
- Open the Chrome browser.
- Press CTRL + ALT + T to open CROSH.
- Type network_diag into
CROSH, and then press Enter.
- Wait while CROSH performs a set of network diagnostic
tests. A diagnostic screen displays the results of the network adapter
health test.
- The diagnostic test log is saved as a.txt (plain text) file in the Files app.
- If the diagnostic test returns a failure message,
make sure the Wi-Fi adapter is enabled and connect to a network.
