8 Most Profitable Lithium Stocks to Invest In

4. EnerSys (NYSE:ENS)

Last Year’s Net Income: $328.10 million

Number of Hedge Fund Holders: 30

EnerSys (NYSE:ENS) supplies stored energy solutions globally. The company serves diverse markets, including telecom, defense, transportation, and renewable energy. It has four segments: Energy Systems, Motive Power, Specialty, and New Ventures which offer both lithium-ion and lead-acid batteries, plus storage solutions and fast-charging systems. With this distinct presence in the industry, EnerSys stands out as one of the most profitable lithium stocks.

For Q3 2025, ended December 29, 2024, EnerSys (NYSE:ENS) reported revenue of $906 million. This marked a 5% rise year-over-year, fueled by the growth of Energy Systems and the acquisition of Bren-Tronics. Energy Systems grew 4% as the U.S. saw a recovery in demand in communications and data centers, whereas Motive Power generated a 1% increase in revenue despite disruptions in Europe. Specialty revenue leaped 17% due to high demand in the aerospace and defense industries. Moreover, EnerSys generated $57 million in free cash flow, and an expected $135 million tax refund is set for March 2025.

On January 17, 2025, EnerSys (NYSE:ENS) secured a $199 million award from the U.S. Department of Energy. The funding will be used to build a 500,000-square-foot lithium-ion cell factory in Greenville, South Carolina. The plant will produce U.S.-sourced lithium-ion batteries for commercial, industrial, and defense uses, including for the U.S. Department of Defense. Construction is expected to start in 2025, while production should begin by 2028. This step strengthens EnerSys’s position not only in the U.S. energy supply chain but also in the defense sector.

With critical government funding, growth in key sectors, and ongoing innovation, EnerSys is set to profit from the rising demand for lithium energy systems. Thus, EnerSys (NYSE:ENS) remains a profitable lithium stock for investors.