Hop up some ledges til you reach a really sharp layback crack. If only this was much longer, it would be a classic. Make a couple layback moves, be careful of the loose part of the flake, mantle onto a ledge and cruise the blocky crack to the top of the Basalt and Battery pinnacle.
Location
This is the left-facing corner to the left of Basalt and Battery. You can step down to that anchor to get off.