Large-battery-maker Lithium Technology Corp., Plymouth Meeting, today said it received two orders, totaling $600,000, in connection with the Naval Oceanographic Office's unmanned underwater vehicle project.

Lithium Technology's high energy lithium-ion cells will be used in the Seahorse Autonomous Underwater Vehicle, the company said.

The 28-foot-long Seahorse is used to collect data in seacoast regions. It is capable of pre-programmed independent operations that allow it to maintain a constant depth, course and speed; navigate between various points; and conduct search and survey patterns down to 1,000 feet for up to 72 hours.