Why does your e-cig take so long to charge?

Your e-cig may take a long time to charge due to a few factors, such as a low-capacity battery, using a slower charging cable or adapter, or having a damaged charging port. Additionally, if the battery is older or has degraded, it may not hold a charge as efficiently, prolonging charging times. Lastly, charging could be slower if the device is in use while connected, which can drain power faster than it can be replenished.