To prevent your cartridge battery vape from leaking, follow these tips and best practices:

1. Avoid Overfilling: One of the most common reasons for leakage is overfilling your vape tank. Always fill your tank just below the maximum capacity to allow for air and prevent pressure build-up that can cause leaks .

2. Check and Replace Seals: Inspect the seals and O-rings regularly. If they show signs of wear or damage, replace them immediately. These components are crucial for keeping your cartridge battery vape airtight .

3. Secure Connections: Ensure all parts of your cartridge battery vape are securely fastened but avoid over-tightening, which can damage the seals and threads .

4. Proper Filling Technique: Fill the tank slowly and steadily to avoid creating air bubbles. Avoid getting any e-liquid in the central tube for airflow, as this can cause leaks during vaping .

5. Use the Right E-Liquid: The consistency of your e-liquid matters. High-PG liquids are thinner and more likely to cause leaks in devices designed for thicker, high-VG liquids .

6. Maintain Regular Cleaning: Residue buildup can prevent seals from functioning correctly. Clean your tank, coil, and mouthpiece regularly with warm water and allow them to dry thoroughly before reassembling .

7. Store Correctly: Always store your cartridge battery vape in an upright position. Storing it on its side or upside down can cause e-liquid to flow out of the tank and leak through the airflow holes .

8. Handle Temperature Changes: Keep your cartridge battery vape at a consistent temperature to prevent e-liquid from becoming thinner and more likely to leak due to temperature changes .

9. Break In Coils Gradually: Prime new coils at lower recommended wattages first, allowing incremental ramp-ups to support proper saturation over several tank fills, preventing dry burns which can create tiny vulnerabilities .

10. Carry Emergency Leak Fix Gear: It's a good idea to carry spare O-rings and a small amount of isopropyl alcohol for quick fixes if leaks occur .

By following these guidelines, you can significantly reduce the chances of your cartridge battery vape leaking and ensure a more enjoyable vaping experience.