Stop troubleshooting immediately if:

• The battery is swollen, hot, or emits a chemical odor
• You see visible damage to the battery compartment
• The device gets unusually hot during normal use
• You've tried all applicable fixes and the problem persists
• The device was dropped in water or submerged

Contact the manufacturer's warranty department, return to the retailer, or replace the device. Lithium-ion battery failures are fire hazards — never attempt to open, modify, or repair a vape battery yourself.