RG-390E Battery for Cessna Mustang Aircraft

With proper maintenance and capacity testing, RG-390E nickel-cadmium batteries for the Cessna Mustang typically last 3–5 years, depending on usage patterns and operating conditions. Regular deep-cycling and capacity testing through an FAA Part 145 approved facility can help maximize battery service life.

The RG-390E is a specialized nickel-cadmium battery system designed to provide main electrical power for Cessna Mustang aircraft operations and engine starting.

Yes. All RG-390E battery components — including temperature sensors, receptacles, and modification kits — are FAA-PMA approved for aviation use, ensuring full compliance with aviation safety standards. The products are backed by over 30 FAA-PMA approvals.

The RG-390E product line for the Cessna Mustang includes replacement battery packs, temperature sensors, low-impedance battery receptacles (butt type and stud type), modification kits, and battery inserts. Products are available in configurations compatible with SAFT, Marathon, Varta, and G.E. batteries.

Yes. 24/7 AOG (Aircraft on Ground) technical support is available for emergency battery situations. Rental batteries are also maintained to minimize aircraft downtime and keep your operations running with fast turnaround times.

Yes. The FAA Part 145 approved facility can service any nickel-cadmium or lead-acid aircraft battery, including brands such as SAFT, Marathon, Varta, and G.E. Services include capacity-testing, deep-cycling, and storage for all supported battery types.

Ni-Cad Systems, Inc. holds both FAA-PMA approval — with over 30 individual PMA approvals — and FAA Part 145 certification for its repair and service facility. The company brings 47+ years of aviation battery expertise, having serviced over 47,000 aircraft battery units since 1974, backed by a team with 100+ years of combined engineering and technical experience.