The nine new finds were all made in connection with high-voltage lines near a transformer station near Görlitz, the police and the prosecutor's office in Dresden announced, the Stern newspaper reports.
All explosive devices have been defused.
German police said on Friday that a man is wanted after he claimed responsibility for a series of sabotage attacks against the electricity grid last week in a letter.
The man is said to have justified the crimes by criticizing energy production using fossil fuels. He is still at large.
