Start Power TC400/28C 3500A Power Unit

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Part# 11-15561
MFR Model# TC400A/28C


No Fuel, No Pollution, and No Noise

The TC400/28 range is designed to give silent, clean power. These 28V DC power supplies can offer both continuous power for a set time, and start power. With a built in ‘flashing’ light, the units will tell you when it is time to charge them. They also come with a built in voltmeter and an external charger that allows you to leave them on charge when not in use, ensuring they are always ready for operation. The TC400/28 range is designed specifically for when mains power is not readily available. They are maintenance free, with no moving parts, which make these units an extremely cost effective and environmentally friendly option.

The Red Box hand portable packs are some of the most powerful Hand Portable Packs available worldwide. Red Box uses the latest in military aerospace technology to achieve a very high power to weight ratio. These power packs are designed for starting of piston, turboprop or turbine aircraft and helicopters in the field or in remote locations and Red Box units may be carried safely on board all aircraft. The power packs are “all weather” units and being modular, can be used in single or dual format. They can be used or stored in any orientation, even inverted. Cells used are cleared as non-hazardous cargo for carriage in the aircraft. They are able to operate in extremes of temperature and have excellent standby characteristics. They are maintenance free and do not require cycling. They can be re-celled “on condition” at any Red Box service center in the world and are designed to give years of repeated service. In addition to aviation, these highly portable units can be used with Armored Fighting vehicles and Military equipment. They can be recharged from the automatic charging system, which is supplied in the package, or from any vehicle using a suitable interface.

Volts DC: 28
Peak Amps: 3500
Maximum S/C Amps: 5200
Continuous Amps: 95A @ 1 hour
Battery Type: Lead Acid
Weight: 140-165 kg


  • Totally weather protected.
  • Air transportable, ‘Non Hazardous‘
  • Maintenance free.
  • Tough and compact.
  • No memory effect.
  • High charge retention.
  • Long shelf life.
  • Fast recharge.
  • External charger for prolonged unit life.
  • No cycling.
  • Leak proof.
  • Cells replaceable on condition.
  • Multiple, heavy duty engine starting of turbo prop, turbine, aircraft and helicopters.
  • Portable start power at remote locations.


  • Max amps: 3500 (Nom. short circuit current)
  • 5200 (Max. short circuit current)
  • Capacity: 136 Amp Hrs @ 10hr rate
  • Run Time: 95A for 1 hour, 55A for 2 hours, 39A
  • for 3 hours
  • Max voltage: 30.3v DC
  • Size: L780 W350 H300 mm
  • Weight: 140-165 kg
  • Operating Temp: -40°C – + 60°C
  • Case: Zinc Coated Steel
  • Voltage Indication: Digital to IP65
  • Auxiliary Protection: Circuit breaker 40A
  • Aircraft Cable: 3 m heavy duty table with aircraft connector
  • Charger: 20A Electronic 110/230v. Charging time less than 3 hours from 50%
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Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

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