So I am coming from a Kanger Ipow 2 1600mah.

The battery life was decent, using a single coil. But for some reason, it didn't last as long as my good old Kanger E-vod 1000mah. (Weird, both using same coils, same wattage)

Maybe the light up screen uses more juice?

Anyway, I am getting into sub ohm vaping with the new Kanger Sub tank. As well as looking for my first box mod.

Istick 30w - 2200mah 18650 battery
Istick 50w - 4400mah 2x 18650 battery

I am looking for battery life and a compact package. How long does a 18650 battery usually last you guys? Should I just go for the istick 50w?

I found myself carrying a spare Ipow2 battery. Had to bust it out like 1/5th of the time I would go out.

Thanks!

The regular iStick won't fire sub-ohm coils.  The 50 watt iStick will go down to .2, I think.

So if you're using your Subtank, you'll have to get the 50 watt.

Edit: Scratch the first part.  I was thinking of the 20 watt iStick.

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No iStick but I generally get about 2 days out of my x2 18650 devices thats with moderate vaping usually using 0.5-0.8 coils @30-40 watt.

The 20w lasts me about two days and only takes a few hours to fully charge back up

Hmm I might go for the 30w

I pass through vape in the car anyway. As long as it lasts me the day.