The battery capacity refers to the duration of device usage. The higher the values, the longer the discharge duration.

900

A kit with less than 1000 mAh may not last for a day of average use (about 900 puffs).

Note that in devices with settings, the more wattage used, the more battery is consumed.

1.9

Ideal tank size for occasional use. It produces from 50 to 200 puffs until it needs to be refilled.

For moderate and more intensive use, a larger capacity tank is recommended.

Refill Fluid

Devices accept ready-to-use E-liquids or liquids that have been created by mixing bases and flavors.

"It is a vaping method that resembles traditional smoking, resulting in a tighter inhale and less vapor production."