Smooth delivery of power has surprising downstream effects. The wear on ball joints and tyres for EVs can be significantly less due to not having as much jerk (derivative of acceleration) from their motor.
https://www.fleetowner.com/equipment/tires/article/21147010/...
Not sure why you thought otherwise.
Jerk causes chatter (slippage) between parts and can significantly reduce designed life. Electric motors are amazing at smoothing out discontinuities. Nokian has stated EVs are easier on tyres for this reason.
In this case for short-distance batteries I estimate battery pack mass of 150kg more than ICE equipment. Increased mass would not have a major impact on ball joints and tyres, these loads will be designed in.
I have no idea what you're on about with "chatter" without specifying any specific part of a drivetrain...
Like your whole comment reads like someone trying to apply extremely general theoretical concern while handwaving away actually connecting it to practical application...
And where are you getting the idea that:
a) the weight difference will only be 150kg. These things can end up doing 50 miles with a heavily loaded truck in high heat. They'll need the same cooling systems the ICE does, they'll need battery packs over-provisioned to meet their 25 year life span mandate.
b) even 150kg wouldn't increase weight. I don't know what you think "designed in" means. It means either make the parts beefier so that they can withstand greater wear before replacement, or it means replace parts more... neither option erases the problem.
ICE or EV obviously they're going to design the suspension to handle the curb weight + occupants and cargo but adding to the curb weight will have the result of making something more expensive. Doesn't really matter if you're paying for it upfront or later, you're paying for it.
My Spec Miata's suspension alignment was designed with my weight in mind and literally every pound counts. Even the weight of the gas in the tank opposite me can have a noticeable effect on how the suspension sits, which in turn affects tires wear.
The same thing plays out on a "normal" car in much slower motion