How do I calculate vape battery life in hours?
Divide the battery's watt-hour rating (mAh × voltage / 1000) by the device's average power draw in watts. That gives you approximate hours of continuous use. Use our Vape Battery Calculator to do it in seconds.
Why does my vape die faster than expected?
Higher wattage, frequent puffs, and low battery efficiency all shorten runtime. Also, batteries lose capacity as they age. Compare your actual usage to the calculated estimate to spot the difference.
What does mAh stand for in vape batteries?
mAh means milliampere-hour—a measure of charge capacity. Higher mAh means more stored energy, so a 3000mAh battery should last longer than a 1500mAh one at the same wattage.
Not medical advice. For adults 21+ only.
