Next thing you know they'll turn themselves off if you don't renew your support contract, or try to use unsupported screws.
I've once had in hands an advanced automatic torque wrench that had a built-in barcode scanner in front - ostensibly so that it could tell what part of an assembly you're screwing in, so it can pick the correct torque settings from a pre-programmed database. But it's a short hop from there to verifying you're using fasteners up to spec, and this can be trivially extended to ensuring you're using the right fasteners :).
The lock-in is real.
And oem batteries have systems in place to prevent over-use, over-heating and will shut off to prevent battery damage. So its less like DRM for batteries and more like each tool is designed along side its battery for performance.
Supports location tracking and geofencing