The Hawker Energy Sealed Battery achieves a lower cost of ownership through the following benefits:

• Simplified Maintenance
  Maintenance is greatly reduced (visual inspection/discharge test) and, depending upon the application, can remain "maintenance free" for up to 5 years.
• Easy commissioning
  Batteries are supplied fully charged and tested and may be stored for up to 2 years and be ready for use. Commissioning normally consists of only a voltage check, which may, after prolonged storage, indicated the need for a short boost charge. No discharge testing or cycling is normally required.
• Safety
  The Hawker Energy Battery is sealed and has no free electrolyte which could escape and cause corrosion, even in the event of damage to the battery case. Being sealed also means that no venting of harmful fumes can be released into the aircraft or storage areas under normal charging conditions.
• Minimized spares cost
  Reduced maintenance, immediate commissioning and ease of transportation all add up to a minimum spares holding for operators with minimum risk of AOG.
• Ease of operation
  The design of the battery does not require thermal sensing for safe operation.
• Reduced Facilities
  The need for special battery rooms is eliminated. Batteries can be serviced in general workshop areas and Nickel Cadmium test rooms.
• Unrestricted transportation
  All batteries are approved for world-wide transportation without restriction in a fully charged and ready for immediate use condition.
• Charge retention
  Exceeds any other secondary rechargeable Lead Acid or Nickel Cadmium battery system.
• Performance
  Does not suffer from fading after frequent engine starts or short flights, unlike conventional Lead Acid and Nickel Cadmium Systems.
• Efficient
  Our battery's recombination efficiency, using a non-return valve for safety, operates under negative pressure for most of its operating life.