Think you will need to use a standard resistance carto in the tank because those batteries cant handle low res. So either some kinda 901 to 510 adapter that allows airflow (that is an issue with the kr808/901 but I forgot the specifics) and then use a boge 3.0 ohm. Or punch your v2 cartos somehow and find a tank that fits. All that hassle you should think about a kgo kit or something
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