batlogex.dll is a Battery Log Utility
belonging to ThinkPad Laptop Driver
. This is used by the Power Management service to log the status of the battery.
Non-system processes like batlogex.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that over time your registry suffers fragmentation and accumulates invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues