Start Pac Portable Power Supply Model 53105

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Part# 11-06834
MFR Model# 53105


Start PacŪ Model 53105 is a 28.5 Volt continuous DC power supply when plugged into 220Volt single-phase AC power. This unit will deliver full 105 amp DC output, but will not provide enough current for engine starting. Therefore this unit is designed for maintenance and to power up various functions such as inverters, avionics, GPS, etc. Made in the USA.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.


Maximum Continuous Current output 105 A
DC voltage output 28.5 VDC
AC voltage input 90 - 240 VAC
AC current input at maximum DC power output 27 A @110VAC 14 A @220VAC
Phase Single
Forced air-cooling Yes
Over current protection Yes
Over voltage protection Yes
Over temperature protection Yes
Complete weight with aircraft cables 18lbs / 8.2kg
Dimensions Length x Width x Height 14.5″ x 7″ x 13.75″ (37 x 18 x 35 cm)


I ordered a START-PAC 53105 power supply with the 28.5v and 105amp power for our Citation XLS+. Just used it to power the aircraft avionics systems and it works as advertised. Makes it easy to update the avionics. That is the reason we purchased the unit.

Harvey M Verified Purchase


November 8, 2021


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.

Q: What type of plug does this STARTPAC&#-1248;PORTABLE POWER SUPPLY MODEL 53105 have?

This unit is provided with a power chord with a bare wire end. This is so you can attach whichever plug you would like onto the unit.

Q: Can you tell me what the input amps are for this Startpac 53105 unit?

This unit requires a 20 amp breaker service and 220VAC single phase power from the wall.

Q: Can you tell me what the input amps are for this Startpac 53050 unit?

Input is 180-240VAC

Q: How long is the input cable and are there options on the length?

The aircraft cable is 8 foot long. They can be ordered with a custom cable length but the vendor does not recommend longer than 15 feet to avoid amperage loss.

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