No specific info about version 5.1. Please visit the main page of Amphetamine on Mac Informer.
Extends the time you can use your computer on battery power.
This Mac app lets you set a sleep timer for your computer.
Keep Drive Spinning ensures that a connected drive never goes into low-power mode.
A utility that displays info related to the user's MacBook battery.
Lights Out enables hot corners to put your Mac to sleep, or keep it awake.