The Adrenaline Shield is identical to the Nanite Mesh Generator in most ways: Both are a 450 HP shield at full strength, both cost about 43 HP of shield strength to activate, both drain at approximately 18 HP per second when active (and therefore have the same default duration), both fully block incoming damage up to the remaining strength of the shield, and neither stacks with the bonuses from Flak Armor or Nanoweave Armor when active.