Wireframe Model:
Cost: 100 Hit Points: 200 Plasma Shields: 200 Energy Points: 200 Armor Type: Heavy Armor: 1

The Shield Battery is probably one of the least used and highly undervalued structures in the Protoss arsenal. Since every Protoss unit maintains a Plasma Shield, the Shield Battery can help extend the life/duration of any unit on the battlefield for much longer than expected. If clustered together, these Batteries can help maintain psionic shields for a sizeable force. In an invasion, they can be a key factor for helping the Protoss survive.