Abstract: A portable battery-powered induction cooktop apparatus comprises: a cooktop comprising a cooking surface; a removable battery; an induction system connected to the removable battery, the induction system comprising: (i) an induction coil located adjacent to the cooking surface; and a (ii) controller comprising a circuit configured to facilitate power transfer from the removable battery to the induction coil; and a housing surrounding at least a portion of the induction system. A portable heating apparatus comprises: a container for a liquid to be heated; a removable battery; an induction system connected to the removable battery, wherein the induction system comprises: (i) an induction coil located adjacent to the vessel; and (ii) a controller, comprising a circuit configured to facilitate power transfer from the removable battery to the induction coil; a housing surrounding at least a portion of the induction system; and one or more solar panels connected to the removable battery.