So in the game you will see little green diamonds on your mini map these are "batteries" used for giving yours or your teammates titans health and overshields... Can also be taken out of enemy titans and used on yours or friendly titans... So now you know and knowing IS half the battle... [spoiler]seen a bunch of people complaining about titans not having OSs so yeah here ya go...[/spoiler] [spoiler]inb4 all the "we know this already dumbass" comments[/spoiler]