This may be a battery issue, but you also can’t rule out the Chromebook’s connection to a power outlet.
Give it time to charge
If the Chromebook was completely dead, you just plugged it in, and now it won’t turn on, don’t panic. It may remain unavailable for a while. Give it a good 30 minutes before attempting to boot the device again.
Charge on a different circuit
If it’s not charging while connected to a power outlet, try another nearby outlet and see if that resolves the issue. If not, take it to another room far, far away to try a different outlet. If it suddenly starts charging, there may be too much electrical noise on a specific circuit. Try unplugging appliances on the troublesome circuit to see if they were causing issues with the Chromebook’s charger.
Check the charger
Is it damaged? Can you see the internal wires? Are the USB connector or the charger prongs bent? If so, a new power adapter is in order.
Perform a hard reset
Use this method before moving on to the next option, which requires removing the battery.
Step 1: Turn the Chromebook off.
Step 2: Press and hold the Refresh button and then tap the Power button.
Step 3: Once the Chromebook boots, release the Refresh button.
Remove the battery
This method is only available for specific models listed here.
Step 1: Unplug the power adapter.
Step 2: Remove the battery.
Step 3: Press the Power button for 30 seconds. This supposedly discharges anything still lurking on the motherboard.
Step 4: Replace the battery, plug in the power adapter, and wait 30 minutes.