The specific value of the contract from BAE Systems, maker of the howitzer, was not disclosed.
The weapon, chosen by the Army and Marines as their next-generation medium force weapon, is a quickly deployable 155mm howitzer with aluminum and titanium components.
Saft, a manufacturer of high-tech batteries, said its Super-Phosphate batteries will replace previous lead-acid batteries used with the guns fire control system to provide advantages specific to the company's Li-ion technology, including longer battery life, faster recharge and reduced costs.
The new batteries will be integrated with Saft's field-proven 28V control and power electronics using battery enclosures designed to withstand rugged environments.
"This partnership with BAE Systems highlights the superiority of Li-ion Super-Phosphate technology and represents Saft's unique ability to enhance the weapon systems market with a new battery system," said Thomas Alcide, general manager of Saft's Specialty Battery Group. "Saft looks forward to further developing advanced technology batteries and expanding our portfolio of offerings for military weapons."