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Partner with ISO 9001 certified engineers for high-reliability custom lithium battery solutions in oil & gas, medical, industrial, and defense sectors.

North American Operations with Global Supply Chain Support

Excell Battery Co. operates dedicated manufacturing facilities and engineering centers across North America, integrated directly into Ultralife Corporation's global manufacturing network to guarantee security of supply for international OEM procurement teams.

Houston, Texas (USA Hub)

Direct Tel: +1.713.647.0600

823 Buffalo Run, Missouri City, TX 77489, United States

Focus: Oil & Gas Downhole Battery Assemblies, HAZLOC & Heavy Industrial Systems

Vancouver, British Columbia (HQ)

Direct Tel: +1.604.575.5011

#133, 18525 53rd Ave, Surrey, BC V3S 7A4, Canada

Focus: Corporate Headquarters, Advanced R&D Lab, Medical & Smart Battery Design

Calgary, Alberta Engineering Center

Direct Tel: +1.403.250.5988

2151 32 St NE #50, Calgary, AB T1Y 7G3, Canada

Focus: Environmental Instrumentation, Remote Power Solutions & Field Engineering

Why International OEM Procurement Leaders Rely On Excell Battery Co.

40+ Years of Specialization

Established in 1984, our custom battery engineers have designed thousands of custom pack configurations operating in extreme downhole, subsea, and hazardous environments.

Uncompromising ISO 9001:2015 Quality Controls

Strict traceabilities, 100% automated electrical testing, and full UN 38.3 transport certification compliance to eliminate operational risks for overseas logistics.

Tier-1 Cell Manufacturer Direct Purchasing

Direct strategic sourcing partnerships with global leaders including Tadiran, Saft, Panasonic, Samsung SDI, Molicel, LG Energy Solution, and Murata.

Complete Lifecycle OEM Co-Engineering

From initial thermal modeling, BMS firmware design, cell matching, and mechanical enclosure prototyping to low-risk volume delivery.

Global Sourcing & Delivery Footprint

Combined with Ultralife Corporation, our supply chain footprint protects your supply line across North America, Europe, and Asia-Pacific.

Excell Battery Co. Global Manufacturing Operations Map

Internationally Audited Quality Standards

ISO 9001 Certified Quality Management System
Intertek Compliance & Safety Standards Certification
SWEDAC Accreditation Mark

Download Our Custom Battery Engineering Guide

Explore chemistry specifications, high-temperature downhole cell configurations, and smart BMS integration capabilities designed specifically for high-reliability OEM projects.

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