short battery life

[Quinten Van Riel]

Hello ther can someone help me.

I bought the therion 166 with dna 250 chip about 3 weeks ago, when i charge the mod total full i can do less than one day with it.

The battery's are green 18650's also maximum 2 month's old.

The setting is 2cell.

Thanks for listening i hope someone can please help me bcs i love the way this thing works but i can't even do one day with good vaping.