|Location:||Pipe Dreams, Popguns, Richard's Gear, Pachelbel's Cannon, Sitcom|
Need 1 to unlock the Technomancer Armor, 14 to unlock all the skills.
Total: 15 Charged Cog for unlocking the Armor and Skills. It is best to get cogs in Pachelbel's Cannon since it is the only quest that has only cogs for rewards and can use all NPC's. However, the second quest, Popguns, is also a good option for getting charged cogs.