If there’s a market for it, replacements will be made. You can buy a replacement PS5 battery for $5. You can also buy a iPhone 4 battery (still). LiPos are quite easy to make (geopolitics aside) so making one that fits is not hard at all.
The PS5 battery has a plug, if the Steam Controller is like that (probably is), the only tool required is a screwdriver, which seems like a great tradeoff to replace the battery every 5+ years instead of every week or two, and being able to recharge it easily and quickly.
Worst case scenario you have to use a generic battery that is about the right size instead of a perfect fit. Maybe a little less battery life but it’s still more than enough anyway.
If there’s a market for it, replacements will be made. You can buy a replacement PS5 battery for $5. You can also buy a iPhone 4 battery (still). LiPos are quite easy to make (geopolitics aside) so making one that fits is not hard at all.
The PS5 battery has a plug, if the Steam Controller is like that (probably is), the only tool required is a screwdriver, which seems like a great tradeoff to replace the battery every 5+ years instead of every week or two, and being able to recharge it easily and quickly.
Worst case scenario you have to use a generic battery that is about the right size instead of a perfect fit. Maybe a little less battery life but it’s still more than enough anyway.