UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the fiscal year ended March 31, 2024 or ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the transition period from to Commission file number: 001-32253 ENERSYS (Exact name of registrant as specified in its charter) Delaware 23-3058564 (State or other jurisdiction of (I.R.S. Employer incorpor ...