Haggan Aviation technician performing a capacity test on an aircraft battery with an Aero Quality analyzer
Why Battery Maintenance Matters

The Smallest Component,
The Biggest Impact.

Aircraft batteries rarely get much attention — until they don't perform when you need them. Whether it's engine start, emergency power, or supporting critical aircraft systems, battery health plays an important role in aircraft reliability. Many battery problems develop gradually before they become obvious, and routine maintenance helps identify declining performance before it turns into a delay on the ramp.

What We Do

Our Battery Services

Inspection, testing, charging, troubleshooting, and replacement — performed as part of comprehensive aircraft maintenance under one roof at Centennial Airport.

01

Battery Inspection

A close look at the condition of your battery and its installation.

  • Physical damage
  • Corrosion
  • Electrolyte leaks (when applicable)
  • Loose terminals & cable condition
  • Mounting security & venting
  • Signs of overheating
02

Capacity Testing

Measures whether the battery still performs within manufacturer specifications — often preventing replacement of batteries that are still serviceable.

  • Capacity loss
  • Weak cells
  • Internal deterioration
  • Batteries approaching end of life
03

Battery Charging

Proper charging is critical to battery performance and service life.

  • Approved charging procedures
  • Recovery charging (when appropriate)
  • State-of-charge verification
  • Charging system checks
04

Battery Replacement

When replacement is necessary, we handle it start to finish.

  • Remove existing battery
  • Install replacement battery
  • Perform operational checks
  • Verify charging system operation
  • Return to service per applicable procedures
05

Battery Troubleshooting

Electrical issues don't always originate with the battery. Our technicians trace the real source.

  • Hard starting & low voltage indications
  • Charging faults & battery drain
  • Repeated battery failures
  • Starter system concerns
  • Alternator / generator related issues
06

Part of Scheduled Maintenance

Battery service is most efficient when bundled into planned downtime, minimizing future interruptions.

  • Annual & phase inspections
  • Progressive inspections
  • Avionics upgrades
  • Scheduled maintenance events
Know the Warning Signs

Signs Your Battery May Need Attention

A weak battery rarely fails all at once. These are the early indicators worth acting on before they become an operational problem.

Slow engine starts
Frequent reliance on ground power to start
Battery won't hold a charge
Low voltage warnings
Repeated charging required
Electrical anomalies
Corrosion around terminals
Age nearing replacement interval
Repeated maintenance write-ups

Seeing one or more of these? A quick inspection and capacity test can tell you where the battery really stands.

Don't leave it to chance. Haggan Aviation runs one of the most thorough aircraft battery service programs in business aviation — the kind of attention to detail that keeps your aircraft dispatch-ready and your batteries performing when it counts.

Smart Timing

Handle It During Planned Downtime.

If your aircraft is already in for scheduled maintenance or an inspection, that's the ideal time to inspect, test, service, or replace the battery. Bundling battery work into planned downtime helps reduce future maintenance interruptions and keeps surprises off the ramp.

Annual Inspections Phase Inspections Progressive Inspections Avionics Upgrades Scheduled Maintenance
Cessna Citation in for scheduled maintenance at Haggan Aviation

Battery Issue Grounding Your Aircraft?

We can support AOG events when appropriate — because every hour on the ground costs you.

AOG Hotline — (303) 792-0688
Common Questions

Battery Maintenance FAQ

How often should an aircraft battery be tested?

Battery maintenance intervals vary by aircraft manufacturer and battery type. Follow the applicable maintenance manual and inspection schedule.

How long does an aircraft battery last?

Service life depends on battery type, operating conditions, charging practices, and maintenance history.

Can a weak battery damage other aircraft systems?

A deteriorating battery can contribute to electrical system issues, difficult starts, and unnecessary troubleshooting.

Should I replace my battery or have it tested?

Capacity testing often determines whether replacement is necessary or whether the battery remains serviceable.

What causes aircraft battery failure?

Common causes include:

  • Age
  • Deep discharge
  • Improper charging
  • Heat
  • Corrosion
  • Internal cell deterioration
Pre-Buy & Pre-Purchase Inspections

Your Investment
Protected

Buying an aircraft is one of the largest financial decisions you'll make. What looks airworthy on paper may hide corrosion, AD non-compliance, undocumented damage, or paperwork problems that become your problem the moment you close. A pre-purchase inspection changes that.