How to Properly Charge Your Vape Pen Vape Not Charging? 10 Reasons & Easy Fixes NH Can You Charge a Vape Overnight? Battery Safety Ecigone How Long to Charge Disposable Vape? Complete Guide Unplug your vape when it's fully charged to reduce the risk of fire. Rechargeable vapes contain batteries which can overheat when left charging for too long and that means fire risk. Unplug your vape when it's fully charged to reduce the risk of fire. Rechargeable vapes contain batteries which can overheat when left charging for too long and that means fire risk.