Your battery and cartridge need to work together, and not just in terms of threading (most use 510-thread, but double-check). The resistance of your cartridge affects battery drain. Lower resistance (like 1.0 ohm) heats up faster and produces more vapor, but it pulls more current. Higher resistance (like 1.5 ohm) is more efficient but might give a weaker hit.

If you're using a low-resistance cartridge, you'll need a battery that can handle the load. Some devices are designed for a specific resistance range, so check the specs. Also, voltage settings matter: a device that runs too hot for your cartridge will drain faster and can burn your oil. Start low and adjust to find the sweet spot.