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Part# 11-05086
MFR Model# JAC2024H-CEC


These portable power supplies are an excellent way to power your avionics on the ground while you train or practice in the cockpit. Especially helpful in learning how to operate glass cockpit avionics and panel mount GPS units. To use the Portable Power Supply plug the cord into an AC wall outlet, and then connect the 3-pin plug into the external power receptacle on your aircraft. Furnished with Cessna style 3-pin plug. Manufactured in U.S.A.

This unit can also be used as a battery charger, by using the battery clip adapter which is provided with the unit.


  • Charge control: constant current charge to a constant voltage then to a float standby.
  • Current Limiting.
  • Fully automatic 3 stage charger can be left on the battery in maintaining/float mode.
  • Can be set for any type lead acid battery, including conventional, maintenance free, deep cycle, gelled-type, valve regulated batteries.
  • Continuous - 100% duty cycle.
  • Low voltage start: will start charging a deeply discharged battery with terminal voltage less than 4 volts.
  • Reverse polarity and short circuit proof.
  • Aluminum caset.


  • 20 Amp 24 Volt
  • 3 Stage Automatic Battery Chargers
  • Connectors for Cessna
  • 100-240 VAC 50/60Hz
  • Dimensions: 10"W X 7.5"H X 3"D
  • Weight: 6.5lbs.


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So far, used for about 4 hours in 3 sessions total powering avionics on ground in a C337G. Will not sustain power to hi-draw items, of course, but does not claim to. With avionics on, was able to run all non-LED exterior lighting for 30 seconds before battery indicated it was discharging. Appears to put out a steady 27.9-28 volts. Recommend for battery charging and short term (1-2 hrs) avionics usage on ground. Download and read manuals before ordering. Will need to order battery ring terminals separately.

April 30, 2020

Works exactly as advertised. I am able to power all my avionics on the ground with this unit. No issues whatsoever.

April 6, 2020

Works very well for providing equipment so you can learn equipment. It only outputs enough power to power up the systems. There is not enough power to run high draw equipment.

March 5, 2020

Exactly what I needed and it works. thank you

Roger G
December 23, 2019

Paul N
November 16, 2019

Charged my 24VDC drained battery in half a day. The battery clips were included (a plus!) I have also used it as an APU to run avionics on the ground, and that worked very well...the Cessna 3 prong connector was also included (another plus) Well worth the money.

Nasser P
October 24, 2019

I just got this, so havent had time to use it, but I would like to review the customer service I received. The first APU I received was apparently pulled from stock wrong, so not what I had ordered. I talked to Claudia Rodriguez on the phone, and then by email, and she quickly cleared things up and sent the right unit to me. She was courteous, knowledgeable, and efficient. Please give her a raise. Thanks.

Don W
September 27, 2019

Product works perfectly with my 2007 Diamond DA 40 XLT - allowing me to use my Garmin G1000 system (both PDF & MDF) without turning on any switches (runs without Master or Avionics switches on). In my case - it is required to have the unit switched on GEL battery mode. Aircraft Spruce packaged and shipper the product on time which arrived in new condition without damage.

Chester F
August 17, 2019

Purchased this for my 1972 E55 Baron to power my avionics on the ground so I could learn how to use the GPS etc. Couldnt have been easier to use just plug it in to the external power port on the plane and switch it on. Make sure you read your POH concerning external power. My master switch is left off and I just turned on my avionics master. Spent about 3 hours messing with the GPS units and setting them up perfectly. Well worth the money of this unit.

Shon T
September 14, 2018

Delivery as promised and product works as advertised. I’m pleased with the entire process.

January 5, 2018


Q: Can you give me the DC output of this unit? (part: 11-05086)

This unit 11-05086 has a 20 Amp DC Output.

Q: Does this unit operate with 240 volts?

It is 100-240 VAC 50/60Hz.

Q: Some newer 28VDC aircraft have GPU input monitor circuits, that do not allow more than a 2 VDC deviation above/below 27.5 VDC. Will this unit not be suitable for these applications, then? Problemic aircraft include Beech C90B series with their triple-fed buss systems, and also the Pilatus PC-12/45 series are vulnerable as well.

Per the vendor: "The 11-05086 is current limited @ 28.8 VDC which is within the deviation you reference, it should be suitable."

Q: When plugged into the external power receptacle on my 172N, will it charge the battery as well as power the electrical system as the ad copy indicates, or is that only for some airplanes and not others?

Per the supplier: should charge as well in the absence of a load draw.

Q: How long is the cable with the connector attached? Regarding the 24V Power Supply with Cessna Plug

The length of the cable from the charger to the end of the receptacle is approximately 9-1/2 feet.

Q: Is the DC power filtered to eliminate output noise or hum to protect avionics?

Per the supplier: Because this unit requires a battery to be in the circuit it (the battery) acts as a filter capacitor for the DC.

Q: Is the charging unit itself a Schauer JAC2024H on this 24 VOLT PORTABLE POWER SUPPLY WITH CESSNA PLUG (part # 11-05086)?

Yes, the charger included with this kit is a Schauer model JAC2024H.

Q: Does the 24 VOLT PORTABLE POWER SUPPLY WITH CESSNA PLUG (part # 11-05086) come supplied with a cord to connect to the 240v ac power source, if so, is it a 2 pin US style And what cord length?

This comes equipped with a detachable AC cord that is 6ft. long. It connects into the charger with an IEC C13 style plug and has a North American grounded 3 prong style plug for the wall outlet. You would need to supply your own 240AV plug with an IEC C13 plug for the charger.

Q: What is the function of the equalizer?

Part # 11-05086 is a power supply to power the aircraft avionics on ground so the aircraft battery is not used/drained.

Q: It says Cessna Style 3 Pin Plug. Are there different plugs available for other planes or is this plug compatible with other makes? Specifically I have a 1982 B55 Baron.

The Cessna style 3-pin plug is commonly used with other aircraft manufacturers, such as Beechcraft, so it should work fine with your Baron.

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