Voss Willpower Datacron Location
This Datacron unlocks the codex entry - Galactic History 77: A Return to the Unknown Regions
This datacron holds unheard of power and knowledge collected by an ancient race. You access its power and discover writings which are clearly only one small piece of a massive galactic history:
With Darth Malak gone and the Star Forge destroyed, peace returned to the galaxy. The Republic and the Jedi began regaining strength after the Jedi Civil War.
But for the redeemed Jedi Revan, peace was fleeting. Old memories began to surface--fragmented memories of the lost Sith Empire building strength on Dromund Kaas. Revan knew that the Sith would not remain in the Unknown Regions forever, and that the Republic was not strong enough to face them.
Finally, Revan made a decision. After leaving behind instructions with allies like Bastila Shan and Carth Onasi, Revan left for the Unknown Regions hoping to put an end to the Sith Empire. He was never seen again.
How To Retrieve This Datacron
To get to this Datacron you will first need to fly from Voss-ka to either Ken-La Outpost (Republic) or Fort Kodentha (Empire). Both of these places are in The Old Paths area of Voss-ka, which is good because we're about to be looking for an old path! In southeastern Old Paths you'll find an obvious large path that travels up the side of the mountain (Screenshots 1 & 2). Follow the path up the mountain until you come to where I am in (Screenshot 3). I am looking at the rocks you need to climb which lead up to the cave, which you will obviously need to follow through (Screenshot 4).
This cave will lead you under Voss-ka and around to the Datacron. Once you find the cave you'll be led straight to the Datacron.
The start of the path that leads up the mountain to this Datacron.
Location on the map of the start of this path. (Exactly where I am standing in the above picture)
Towards the end of the mountain path you will see this little group of rocks straight in front of me. You need to jump up these which will lead you to a cave.
The cave that the rocks lead you to. Following this cave will lead you directly to the Datacron.