> What do you want them to do, make the device unusable?
I want them to say (as you do mention) 'hey, your device has been slowed down because your battery is old. Get it replaced to restore full performance'.
I'd absolutely rather have a slow phone than one that arbitrarily dies at 29%, if and only if I'm given this heads up. At least with one that crashes at 29% battery, I might suspect the battery is dying and get it replaced. The average user has no reason to think that an old battery will slow their phone down, and just ends up with a super-frustrating user experience.
I want them to say (as you do mention) 'hey, your device has been slowed down because your battery is old. Get it replaced to restore full performance'.
I'd absolutely rather have a slow phone than one that arbitrarily dies at 29%, if and only if I'm given this heads up. At least with one that crashes at 29% battery, I might suspect the battery is dying and get it replaced. The average user has no reason to think that an old battery will slow their phone down, and just ends up with a super-frustrating user experience.