BATTERY (P/N 30978-002) - New

The 30978-002 is a nickel-cadmium main battery for aircraft DC power systems. This unit supplies electrical energy for engine starting and maintains essential avionics, lighting, and instrumentation when generators are offline. Commonly identified as a MARATHON NiCad configuration, though exact specifications should be verified before installation.

The battery connects to the aircraft electrical bus through main contactor switches and charging circuits. Service and installation follow aircraft maintenance manual procedures and FAA AC 43.13 guidance, including proper venting, terminal inspection, and safety protocols for high-discharge starting applications.

What is the BATTERY (P/N 30978-002)?

The 30978-002 is a nickel-cadmium main battery for aircraft DC power systems. This unit supplies electrical energy for engine starting and maintains essential avionics, lighting, and instrumentation when generators are offline.

Is the 30978-002 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The BATTERY is available in: New. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the 30978-002 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the 30978-002?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.