The Innokin EZ Watt mod has a sleek design, easy-to-use settings and a 1500mah capacity.
This battery has a capacity of 1500mAh, so based on a standard 500mA charger it will take around 3 hours.
The EZ Watt has 6 wattage options based on the colour and brightness of the indicator light.
Green: Dim (13W) - Bright (14W)
Blue: Dim (16W) - Bright (18W)
White: Dim (30W) - Bright (35W)
To set the colour: Hold down the settings button near the charging port, then hold the power button at the same time to cycle through the 3 colours.
To set the brightness: Simply click the settings button to switch between the 2 brightnesses.
The Prism T20-S Tank is a perfect match for the EZ Watt, but it's also compatible with any tank with a 510 fitting, so long as the coil resistance is at least 0.2ohm.