
MARATHON – ELECTRONIC BATTERY – 9913-1
- FAA-PMA Approved Battery Packs
- 47,000+ Units Serviced Since 1974
- 24/7 AOG Technical Support






















FAA-PMA Approved
FAA Part 145 Approved
Marathon M12V90FT Industrial Batteries are FAA-PMA approved nickel-cadmium aviation battery solutions including replacement battery packs, modification kits, and low-impedance receptacles. Engineered for corporate aviation, airline operations, and military aircraft, these batteries deliver reliable emergency power and electrical system performance. Supported by over 47 years of specialized aviation battery expertise and 24/7 technical support.
Talk to our experts for custom solutions and tailored guidance.
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What is the FAA-PMA approval for Marathon batteries?
FAA-PMA (Parts Manufacturer Approval) certifies Marathon batteries as approved second-source alternatives meeting all FAA aviation safety standards and regulatory requirements for aircraft use.
How long does battery service and testing take?
What is the difference between modification kits and battery packs?
Are low-impedance receptacles compatible with other battery brands?
What support is available for AOG situations?
Can you service both nickel-cadmium and lead-acid batteries?
What aircraft types are Marathon batteries compatible with?
Talk to our experts for custom solutions and tailored guidance.

Marathon batteries provide reliable emergency power and electrical system support for corporate aircraft fleets including Cessna, Falcon, and Citation series.

FAA-PMA approved battery solutions for commercial airline fleets including DC-9, DC-10, and L-1011 aircraft with 24/7 AOG support available.

Specialized Marathon battery packs and modification kits engineered for demanding military aviation applications with fast turnaround service.

Low-impedance receptacles and battery packs designed for critical emergency lighting and backup power applications in aviation environments.
Talk to our experts for custom solutions and tailored guidance.



Over 30 FAA-PMA approvals with 47+ years of specialized aviation battery servicing experience ensuring regulatory compliance and reliable performance for your fleet.
Round-the-clock emergency support with rental batteries available immediately to keep your aircraft operational during critical maintenance and repair situations.
Full-spectrum capacity testing, deep-cycling services, and storage solutions backed by over 100 years of combined team engineering expertise for any nickel-cadmium battery.
Connect with our aviation battery specialists for technical specifications, compatibility verification, and fast-turnaround quotes. Expect a response within 24 hours from our experienced team.
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