Out of respect for the environment and to do our part to be more mindful of harmful environmental emissions, this unit has been replaced by the START PAC GREEN which is 100% emission free and battery powered. Click here to see more details about START PAC GREEN.

Self-Propelled Diesel-Electric Hibrid Ground Power

Self-Propelled Diesel-Electric Hi-Brd™ 4


Need starting capabilities and continuous power away from the hangar? Then the Hi-BRD4 is for you. This START PAC is an autonomous GPU combination with a diesel powered power supply for avionics and a battery bank for engine starting for operators who do not have easy access to an AC power supply and need a powerful solution for jump starting and maintenance checks.


Combination GPU model referenceHI-BRD 4
Battery typeLead acid or Safe lithium-Ion
Voltage26 VDC
Peak Current2800 A
Capacity @10 Amp Rate56 Ah for lead acid 62 Ah for Lithium
Charger typeBuilt in
Charging time range1 to 8 hours
Maximum Continuous Current output300 A
DC voltage output28.5 VDC
AC voltage input
AC current input at maximum DC power output
Forced air-coolingYes
Over current protectionYes
Over voltage protectionYes
Over temperature protectionYes
Complete Weight1073lbs / 487kg
Dimensions – Length x Width x Height56” x 46” x 60” 142 x 117 x 152 cm

This Hi-BRD4 autonomous GPU is self-propelled making it ideal for operations that do not always have access to a tug but need to have the ability to easily walk the unit to the aircraft out on the ramp. This unique feature makes this eco-friendly 26 volt ground power unit simple and easy to manoeuvre on the ramp for shorter distances and yet it can still be towed over longer distances. Please note that there is a non self-propelled variant available.

The START PAC® Hi-BRD 4 combination GPU is equipped with eco-friendly diesel engine (3 cylinder, 23.5hp) and permanent magnet generator to provide you with up to 300 Amps of clean, continuous, no duty cycle power for running aircraft high draw systems, for training, maintenance or software download purposes. It enables maintenance to be carried out on various cockpit systems such as inverters, avionics, GPS and on board air conditioning.

This patent pending GPU is one of a select few that meet current Tier IV EPA emission standards. Compact and economical, this hybrid ground power unit consumes up to 75% less fuel than traditional equipment and runs far more quietly and efficiently. A simple, easy to use ignition key means that on the job training and operation is straightforward and smooth.

In order to be able to start any type of engine – including turbine engines on voltage sensitive aircraft – the unit comes as standard with our patent pending full 26V safe lithium-ion battery technology. These batteries are sealed, contain no liquid and will outlast standard lead batteries by a factor of two to three. They also do not suffer from any sulfation issues that will cause them to fail prematurely from being left sitting in a discharged state. Full 26V lead acid battery pack configuration is also available upon request.

The HI-BRD4 unit will allow your turbine engines to experience faster and cooler engine starts than with most ship’s aircraft batteries (the turbine is spooled to more revolutions per second before fuel is injected). Thus, turbine life will be extended because there is less stress on the starter and other engine components. This will preserve the aircraft’s costly batteries and help lower operating costs. When using your START PAC’s integrated power supply, you save the on-board battery for emergency use only. As a START PAC® secures all your engine starts, this unit will ensure that you have no downtime. The environmentally responsible, low VOC powder coating protects the case from wear, tear and poor weather conditions.

All START PAC™ products come with a 1-year warranty on workmanship and materials.*

Please handle this unit in a responsible manner. START PAC™ is not responsible for damages caused by misuse or neglect.


Need Assistance?

START PAC offers a wide selection of power suppliesstarting units and combination Aircraft Ground Power Units (GPU). Browse our website to read about our extensive product line or visit our tutorial section to gain a more technical insight into our products. If you have a question or need help finding the right product for your aircraft, locomotive or vehicle, START PAC provides customer service support via phone and email. One of our friendly and knowledgeable experts will guide you to the product suited to your specific needs. If – for whatever reason – you are unhappy with your START PAC product, simply send return the unit to us for a full refund.

Why buy from START PAC®?

Made in the USA and developed with the latest state-of-the-art battery and power management technology, our products are trusted the world over. START PAC power supplies are built for heavy duty application and are designed to withstand all environments, however tough. START PAC boasts superior technical and after sales support thanks to our long standing industry experience and our passion for the industries in which we work. START PAC offers unparalleled value for money and fast global shipping via our international dealership network.

*Batteries are cycle-dependent and are therefore not covered under this warranty.