It's not even just batteries. Every laptop I've ever owned comes with a AC to DC converter. Every laptop I've ever owned has outlived that AC-to-DC converter. Every converter that has failed has failed in exactly the same way: the plug/cord connection at the laptop end becomes unreliable.
And every single one of them, across a range of manufacturers, has had the cord not be detachable from the brick. So what could have been a simple $5 replacement cord is now "replace the entire converter" and is now $30 if you try to find a third-party and pray they're not a fraud, or $50 from the manufacturer. Meanwhile at perfectly good converter (sans cord) is landfill.
But lo and behold: the brick-to-wall cord is detachable. And funny that, that one never breaks…
And every single one of them, across a range of manufacturers, has had the cord not be detachable from the brick. So what could have been a simple $5 replacement cord is now "replace the entire converter" and is now $30 if you try to find a third-party and pray they're not a fraud, or $50 from the manufacturer. Meanwhile at perfectly good converter (sans cord) is landfill.
But lo and behold: the brick-to-wall cord is detachable. And funny that, that one never breaks…