Capacity-Testing Services
FAA-approved capacity-testing and deep-cycling for Marathon nickel-cadmium batteries. Our Part 145 certified facility delivers fast turnarounds to keep your aircraft operational with minimal downtime.
Ni-Cad Systems provides expert Marathon battery services throughout Waco and Central Texas. With over 50 years of FAA-approved excellence, we specialize in capacity-testing, maintenance, and rental solutions for aviation operators. Our Part 145 certified facility ensures your Marathon nickel-cadmium batteries meet rigorous safety standards while minimizing downtime with fast turnarounds and 24/7 AOG support for Texas-based operators.

Complete Marathon battery solutions including testing, maintenance, rentals, and storage for aviation operators across Waco and Central Texas.
FAA-approved capacity-testing and deep-cycling for Marathon nickel-cadmium batteries. Our Part 145 certified facility delivers fast turnarounds to keep your aircraft operational with minimal downtime.
Immediate Marathon battery rentals available to maintain operations during service or AOG situations. We keep you flying while your batteries undergo maintenance with our extensive rental fleet.
Secure storage solutions for spare Marathon battery inventory. Our climate-controlled facility ensures your backup batteries remain ready when needed, perfect for fleet operators managing multiple aircraft.
Since 1974, Ni-Cad Systems has specialized in Marathon nickel-cadmium battery service for aviation customers. Our Part 145 FAA-approved facility combines cutting-edge testing equipment with over 100 years of combined team experience. Whether you need routine capacity-testing or emergency AOG support, we deliver the fast turnarounds Central Texas operators demand. With rental batteries available and 24/7 technical support, we ensure your aircraft never stays grounded longer than necessary.

Experience the Ni-Cad Systems difference with over 50 years of FAA-approved aviation battery expertise.
Part 145 approved facility with 30+ FAA-PMA certifications ensuring the highest safety and quality standards for Waco operators.
Specialized rapid service for aviation customers with rental batteries available to keep your operations running throughout Central Texas.
Round-the-clock technical assistance at 510-501-9391 for aircraft-on-ground emergencies anywhere in Texas.
Over 47,000 batteries serviced since 1974 with deep expertise in Marathon nickel-cadmium systems for all aviation applications.
Experienced aviation professionals dedicated to keeping you flying.

President/Owner
As President and Owner of Ni-Cad Systems, Inc., Helena Andrues leads one of aviation's most trusted battery testing and service facilities. Under her leadership, the company has maintained its commitment to excellence that began with her father's founding vision in 1974. Helena oversees operations at the FAA Part 145 approved facility, ensuring that every battery tested meets the rigorous standards demanded by corporate, airline, and military aviation customers. Her dedication to quality and customer service has helped the company surpass 47,000 units serviced while maintaining the fast turnaround times and 24/7 AOG support that aviation professionals depend on. Helena's hands-on approach and deep understanding of the aviation industry ensure that Ni-Cad Systems continues to adapt and innovate to meet evolving customer needs.

Vice President/General Manager
Stephen Andrues brings exceptional credentials to his role as Vice President and General Manager, including FAA Designated Engineering Representative (DER) status, A&P mechanic certification, and pilot credentials. With 40 years of specialized experience servicing Nickel Cadmium aircraft batteries, Stephen holds over 30 FAA-PMA approvals that demonstrate his technical expertise and innovation in aviation battery systems. His deep understanding of both the engineering and operational aspects of aircraft power systems allows him to oversee the technical operations of Ni-Cad Systems' FAA-approved facility with unmatched precision. Stephen's combination of hands-on mechanical experience, engineering knowledge, and pilot perspective gives him unique insight into the critical importance of reliable battery performance. He personally ensures that every battery tested meets the highest standards of aviation safety and reliability, maintaining the company's reputation for quality that has been built over five decades.
We provide complete Marathon nickel-cadmium battery services including capacity-testing, deep-cycling, emergency rentals, and secure storage solutions. Our Part 145 FAA-approved facility specializes in fast turnarounds for aviation customers with 24/7 AOG support available.
Our aviation battery experts are ready to discuss your specific Marathon battery needs and service requirements.
FAA-approved high tech repair facility
Parts Manufacturer Approval certifications
Trusted since 1974 with 47,000+ units serviced
Contact our FAA-certified team for fast turnaround service, rental batteries, or 24/7 emergency AOG support. We're ready to keep your aircraft operational.
For immediate assistance, feel free to give us a direct call at +1 510 785 9391. You can also send us a quick email at Sandrues@aol.com.
For immediate assistance, feel free to give us a direct call at +1 510 785 9391. You can also send us a quick email at Sandrues@aol.com.