Buy Start Pac 3328QC-300 28V Power Supply & Battery Pack

Start Pac 3328QC-300
Manufacturer: Start Pac
Part Number: 3328QC-300
Condition: New
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Rating: 4.0 Based on 2 customer reviews

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The Start Pac 3328QC-300 amp GPU is a combination power supply and battery bank.

These ground power units are designed to perform starting, powering up aircraft systems and maintenance functions. When connected to AC power, the depleted batteries can be charged in a matter of hours with the built in power supply/battery charger.

The 3328QC-300 contains a full 28-volt battery bank for starting and a large power supply to provide a continuous current at 28.5 Volts DC for maintenance. This mobile GPU is configured with a 300 amp power supply. This will satisfy the ground power requirements of most business jets, and includes on-board air conditioning and other high draw aircraft systems.

Power Supply / Charger Specifications

  • Multi - unit 300 Amp DC continuous output
  • 28 - 28.5 Volt output from 0 - 300 amp load
  • Battery recharge time from fully discharged - 2 hours
  • AC Input - 220 Volts


  • 26 Amp Hours at 10 hour rate
  • 28 Volt DC - 30.5 Volts at rest
  • Sealed cells non- hazardous
  • Valve regulated high amperage output lead acid
  • 3200 Peak Amps

Cables Included

  • 10 Ft 4/O Aircraft Cable (DC) - Qty 1
  • 50 Ft #8 Extension Cord (AC) - Qty 1


  • Length - 38 inches (96.52 cm)
  • Weight - 21 inches (53.34 cm)
  • Height - 20 inches (50.8 cm)
  • Handle Height - 48 inches (121.92 cm)

You Ask. We Help. Your FAQs.

Could this unit be used for starting King Airs and for use with continuous power for lights/avionics?
Some of the new King Air or King Air conversions are voltage sensitive. When our 28V units are fully charged, they will read about 30.5V.

If there are no voltage sensitivities, then the 3328QC-300 would be the best option. If there is a voltage sensitivity, then you would need the 3326QC-300.

This unit will also provide 300 amps continuous for power avionics, lights, etc on the aircraft.

Shipping Information
Pkg. 1 Weight270 lbs.
Pkg. 1 Dimensions41 in. x 25 in. x 25 in.
Pkg. 1 TypeCrate

We sell parts for the 3328QC-300 and other items like it at our facility. Not sure exactly what part you need? Just describe it or send us a photo and we will research it for you.

A few of the common parts we offer for this item are:
• Aircraft Cable
• Input Power Cable
• Trolley
• Weather Covers

We provide short-term and long-term rentals for the 3328QC-300. We will ship the item directly to you and arrange for pickup at the end of your lease.

Thank to CGSE for their great service and helping us pick and purchase this product. It is so easy to work with John and CGSE for our GSE needs. Thank a lot!
This is a great product for our King Air commuter fleet. Thanks to John and CGSE for their help and setting this up for us. We enjoy working with CGSE a lot.