When it comes to battery life, I don't think anything holds a candle to the MVP. I know people that charge it every other day, just because they don't want to worry about the battery dying when out and about, and other people that charge theirs once a week. Part of this is due to the size of the battery pack, the other part is due to the power output. 5v max 3.5 amp max certinaly helps with battery life. Also not running low res coils really helps. I have efest and aw imr batteries that i use with my VAMO, SVD, and mechs. I use .8-1.0 ohm on my mechs, 1.7+ ohm on my SVD and vamo and easily get 1.5-2 days of battery life.
I would bet that the VTR uses the same or very similar chipset as the SVD. I would think that most 10amp safe(r) chemistry non protected batteries will work just fine. AW and Efest batteries are usually easy to find and I have been very happy with their performance.
I would bet that the VTR uses the same or very similar chipset as the SVD. I would think that most 10amp safe(r) chemistry non protected batteries will work just fine. AW and Efest batteries are usually easy to find and I have been very happy with their performance.