On a 2000 mah maxamps lipo, 22.2 watt/hours I'm getting nearly two days normal vape time while I'm piddling with work on the side (I vape for my career, I only work to pay the bills ) on 80 watts kanthal, a day and a half vaping a good bit. And I'm an insomniac who doesn't sleep much. I have a LiPo charger so sometimes I'll cut it closer than I normally would and not charge it at 45- 50% the first night and go on through the second day.[/QUOTE] have you purchased that battery and if so could you tell me where from?and does it fit into the vt box and its deans connectors . I'd like to have a bit more battery life if possible. [/QUOTE]can I have the manufacturer make and model a nd where you purchased your battery from .specs re size etc if you could.thanks