Profile: East Penn Manufacturing Co., Inc. manufactures lead-acid batteries, battery accessories and wire & cable products. We are accredited with ISO 9001 certification. Our deka dominator marine batteries utilize advanced gel technology to provide plenty of cranking and trolling power. We serve a variety of industries which include the automotive, commercial, marine, stationary and specialty markets. Our solar series of batteries deliver reliable, maintenance-free back-up power for renewable energy applications where frequent deep cycles are required and minimum maintenance is desirable.