Model Li3328QC 50 Amp Set

Model Li2800QC Twin Pac


This powerful Lithium aircraft starter unit is a full 28VDC battery Twin Pac and will provide superior starts on all electrically-started turbine engines.  Versatile and highly portable, this Twin Pac can be used as a single unit or separated into two complete Lithium units that can easily be carried on board two different aircraft.  The Lithium twin pack has redundant chargers with a total of 14 amps output and a recharge time of approximately four hours.


Print Li2800QC Twin Pac Spec Sheet
Spares & Accessories

Model 53050 Power Supply

When plugged into 110/220 Volt single phase AC power, PAC® Model 53050 is a 28.5 Volt continuous DC portable power supply .  Continually delivering full 50 amp DC output, this unit does not, however, provide enough current for starting an aircraft engine or mining equipment. Instead, it has been designed to power up various systems, such as programming GPS and avionics.  The PAC® Model 53050 is also an excellent choice for powering aircraft maintenance equipment.


Print Model 53050-24/28V Spec Sheet
Spares & Accessories
STARTING UNIT model referenceLi2800QC Twin Pac
Battery typeSafe lithium-Ion
Voltage28 VDC
Peak Current3500 A
Capacity @10 Amp Rate62 Ah
Total Weight88lbs/40kg
Dimensions - Length x Width x Height52″ x 23″ x 23.5″132 x 58 x 60 cm
Charger typeBuilt in
Float type charger input (must be specified on order)90-240 VAC 50/60 hertz
Charging time range30 minutes to 4 hours

This unit is specifically designed for engine starting only.

  • Not to be used as an aircraft battery charger.
  • Do not charge in flight.

The all-new, patent pending START PAC® Model Li2800 QC Twin Pac utilizes the latest technology in Lithium batteries and lithium ground support equipment.  Providing the same power as the lead-acid type, these batteries are superior being 42 percent lighter and 32 percent smaller.  Additionally, lithium batteries have two other major advantages:

  1. Twice the battery life of lead-acid batteries
  2. No sulfation problems (can be left in a discharged state without causing damage)

Load vs. Time (click to view larger)
Li2800QC Twin Pac Load vs Time

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

PLEASE NOTE: Lithium ion batteries can be damaged by deep discharges.  Do not run the batteries down below 24 volts, although a spike during a start is okay.  Voltages below 24 begin to damage the batteries.  At 20 volts, the batteries will be damaged beyond repair.

POWER SUPPLY model reference53050-24/28V
Maximum Continuous Current output50 A
DC voltage output28.5 VDC
AC voltage input90 - 240 VAC
AC current input at maximum DC power output14 A @110VAC7 A @220VAC
Forced air-coolingYes
Over current protectionYes
Over voltage protectionYes
Over temperature protectionYes
Complete weightwith aircraft cables10lbs / 4.5kg
DimensionsLength x Width x Height14″ x 5.25″ x 5.5″36 x 13 x 14 cm

Trust START PAC to deliver reliable and long-lasting products.  Maybe, you need a different power supply unit?  Or even a unit that starts up gas turbines?  Whether you need a new starting unit, or 28 volt power supplies, START PAC offers a large selection of other products in addition to the portable Model 53050, including ground power units, starting units and portable power supplies.

Special features:

  • Over current protection
  • Over voltage protection
  • Over temperature protection
  • Forced air-cooling
  • Wt. 10 lbs./4.5 kg complete weight with aircraft cable
  • DIMENSIONS: L 14″ x W 5.25″ x H 5.5″/ L 36cm x W 13cm x H 14 cm
  • CE Certified

Remember, that this unit is NOT designed for engine starting or battery charging.  Also, make sure that you don’t cover or enclose the START PAC® when in use, as this will inhibit airflow needed for cooling purposes.

Use a minimum of 12# wire size for the AC extension cord.

Contact us about this set

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.