I used one of many (Battery Management System) BMS on the marker to convert my Ca-Ng battery to Li-ion one. An example: this
When bit is stuck or when you want to fixate a drill on drilling position you can trigger safety mechanism and BMS will disconnect your screwdriver from the battery. I suspect that this is over-current protection. And I am very happy it exists rather than burning motor. But drawback of this is that to recover to normal operation mode i need to connect BMS back to an external power source, even for a second to unblock protection circuit.
On another screwdriver I have (branded, Li-on) when drill is stuck or other over-current activity happens power will be disconnected but in less then 1 minute screwdriver is operational again without any extra actions.
What can be done to implement such functionality? I suspect that there should be some sort or multiple-use (thermo-)fuse that would recover on its own?