Improved Heavy Battery Technology ID
The research ID for Improved Heavy Battery in Hearts of Iron IV is improved_heavy_battery.
Improved Heavy Battery
Naval support1939
Unlock this technology with the research command and the tech ID improved_heavy_battery.
About this technology
Power Rammers increase the loading speed of heavy guns while automatic flash-tight doors improve safety. Mounting a Heavy Battery module increases a ship's Heavy Gun Attack, improving performance against enemy Capital Ships.