To be honest, I'm not sure. At 4.8V and 2.0 ohms, you are
vaping at 11.6 watts and 2.4 amps. That is quite a rapid drain on the battery, and a big strain on the button switch. So yes, it may fry the carto, or it might not. It might not
vape at all if there is a safety cutoff on the switch, or it might just hasten the demise of the switch and/or the battery. Either way you are certainly pushing the envelope and putting a big strain on all components of the twist/carto. Not heard of any fires with ego-type
batteries yet, but the VV egos have not been out very long yet.