EnerSys Targets Defense Expansion with $320 Million Ultralife Buyout

The acquisition represents a significant premium over Ultralife’s closing price on Tuesday. EnerSys leadership views the integration as a pivotal step in constructing a more robust, differentiated platform for defense-related energy solutions. By folding in Ultralife’s battery systems and accessories for military communications, the company expects to accelerate its growth trajectory in modern warfare hardware.

Financial projections indicate that EnerSys anticipates realizing between $15 million and $20 million in annual run-rate cost synergies within 18 months of closing. The transaction is slated to finalize in the first quarter of 2027. Following the news, EnerSys shares saw a minor decline of 0.7% in after-hours trading to $172.94, while Ultralife shares climbed to $15.52.