No specific info about version 1.9. Please visit the main page of Wattagio on Mac Informer.
This update is recommended for MacBook Pro (mid 2012) models.
Battery Guru is a menubar application that tracks laptop battery health.
Extends the time you can use your computer on battery power.
A utility that displays info related to the user's MacBook battery.
Keep your Mac battery healthy. A healthy battery is one that is regularly depleted and charged all the way back up.