For the record Model Y packs are a structural component of the car hence the increased weight. The packs in the model 3 and the model Y also contain a significant amount of the power control infrastructure that adds to the overall pack weight
The actual battery component of a Model S 80 kwh pack is under 500 kg.
Batteries from manufacturers such as CATL with almost double the energy density are coming to the market this year . Hence they will weigh considerably less than existing batteries.
CATL launches condensed battery with an energy density of up to 500 Wh/kg, enables electrification of passenger aircrafts
