Id say 6-9 hrs depending how much you vape.Some people get more.
What's so good about 5v vaping?
Mind you, this is coming from someone who's only every vaped at 3.7v on her Chuck
and just got a PT in a PIF. It's a 5v PT, just seems to vape like my 3.7v Chuck.
Hello, I use this one, along with the car adapter.
Ultrafire WF-139 Charger for 14500 / 17500 / 18500 / 18650 / RCR123 3.7 volt Lithium Battery Charger
Ultrafire 12V Car Adapter Cable for Multi-Battery Charger WF-139
Hope this helps. But these work great, I know there a bit pricey but its a great charger and its a smart charger.
In my experience, I get much better run-times out of the IMRs. So much so that they're all I use in my GLVs, both 5v and 3.7v and my UltraFires have been relegated to emergency back-ups.
AW IMRs cost a little more but to me, the longer life makes them well worth it. I usually get mine at Lighthound for $6.99 each but if you buy 5 or more at a time, IkenVape has them for $6.50. Shipping to OH, either place will get them to you in two days.
If I understand your question which reads like a translation (from Polish?) if you are a very heavy smoker/vaper, you may need to change batteries / pair of batteries one time to get through a complete day.
For a 5v I suggest you have at least four (4) AW ICR-123 li-ion 3.7V 750mAh Protected batteries.
For a 3.7v I suggest you have at lest two (2) AW ICR-123 li-ion 3.7V 750mAh Protected batteries.