Just two years ago my car’s 50 kWh battery weighed around 350 kg, now you can get a 45 kWh battery that fits in the palm of your hand!
Just two years ago my car’s 50 kWh battery weighed around 350 kg, now you can get a 45 kWh battery that fits in the palm of your hand!
You are off by a factor 1000 on the household power consumption (I think these numbers are without heating or assumes that you don’t have electrical heating?). And the voltage could be anything on a magical battery ;)