In June 1634, Stålhandske was wounded at the Battle of Hamelin. In 1635, a Major-general, he joined the main army led by Banér. At the Battle of Wittstock he personally captured 35 flags and, at a critical juncture of the battle, forced the enemy to flee. Similarly, he distinguished himself at the Battle of Chemnitz as well as in Silesia, where he defended his positions during the whole year of 1640 against Count Mansfeld.