EnerSys to Acquire Ultralife for $320 Million
The deal, announced October 27, expands EnerSys's advanced battery technology portfolio with US-based manufacturing.
Updated on Nov. 5, 2026 in Electric Vehicles
EnerSys agreed on October 27 to acquire Ultralife, a New York-based battery technology company, in a $320 million enterprise value transaction funded through cash on hand. The acquisition is expected to close in the first quarter of calendar 2027.
Why it matters
The deal extends EnerSys's presence in differentiated battery technologies with US-based manufacturing, a segment serving military communications and other specialised applications. Ultralife also operates in Canada, the UK and China.
The $320 million enterprise value deal is projected to yield $15 million to $20 million in annual run-rate cost synergies within 18 months. EnerSys has not yet confirmed whether those savings will be fully realised on schedule.
The players
EnerSys
EnerSys is a global manufacturer of industrial batteries and energy systems that has reorganised its operations into three segments.
Ultralife
Ultralife is a New York-based battery technology company that supplies rechargeable and non-rechargeable batteries for military and specialised applications.
The details
EnerSys is acquiring Ultralife through an enterprise value acquisition funded from cash on hand. Ultralife provides rechargeable and non-rechargeable batteries, battery systems and related accessories for military communications and other specialised uses.
Timeline
October 27: EnerSys announced the Ultralife acquisition.
July 2026: EnerSys refocused its $500 million South Carolina battery cell gigafactory toward US defence needs and ended its technology partnership with French Li cells developer Verkor.
First quarter of calendar 2027: Expected closing of the Ultralife transaction.
Within the first 18 months after closing: Expected realisation of $15 million to $20 million in cost synergies.
Roadmap
The acquisition continues the defence-oriented strategy EnerSys set in July 2026, when it redirected its $500 million South Carolina gigafactory toward US defence needs. It also follows the company's decision to end its Verkor cell partnership in the same month, signalling a narrower focus on domestically produced battery technology.
For drivers and fleet operators, the deal has no immediate effect on vehicle prices or availability. Its consequences concern the supply of specialised batteries for defence and industrial applications rather than consumer electric cars.
The takeaway
The Ultralife deal shows battery makers prioritising domestic, defence-linked production over partnerships abroad. Readers tracking the sector should watch whether the projected synergies are delivered after the expected 2027 closing.
What happens next
The Ultralife transaction is expected to close in the first quarter of calendar 2027, after which EnerSys expects to begin realising its cost synergies.
Further reading
For more on the battery technology sector, explore Electric Vehicles coverage.
Source note: This article includes information reported by Batteries International.
