Welcome to ECF , and no , as Sailorman said , a bigger battery only gives you more time between charges . You don't say what your using on your Pig ( EGO clone ) but check out some of the carto's and carto type
tanks for the EGO's and clones . Look at the Phoenix , from Gotvapes , the EGO Vision , or known as a starlight . Lots of options out there . I'm using some EGO Visions/Starlight's that are 2.6 and 2.8 ohms , and they are performing great .