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Part# 11-17221


SMART version dual USB 4.2 Amp charging jack autodetects Apple and other brands of phones and tablets for a charge at the maximum rate! Compatible with 12 or 24 Volt DC input, and mounts in a 1-1/8" hole. Suitable for Experimental aircraft, cars, boats, motorcycle, RV, anywhere you need a charging jack


  • SMART version autodetects Apple and other brands of phones and tablets for charge at maximum rate!
  • Two power/charging outputs, 4.2 Amps Total
  • Iphone, Ipad, Android compatible
  • Works with 12 or 24 Volt DC input
  • Panel mounts in 1 1/8” hole, can replace lighter jack
  • Four times the amperage of most cigarette lighter adapters
  • Suitable for Experimental aircraft, cars, boats, motorcycle, RV, anywhere you need a charging jack
  • Can be used with or without included splashproof cover
  • Wire terminals included. O

In The Box

  • SMART Charging Jack
  • Wire Terminals
  • Customers Also Viewed
  • Frequently Purchased With


These 4.2SMARTUSB charging ports by EA Manufacturing work great! Reverse polarity protection, no radio interference, no LED light to ruin your night vision, and nice styling for your panel. Charges my iPad Air 10.5 in flight with no problem.

Melvin R
August 1, 2020

Excellent value. No noise. I have been using one of these while taking lessons in a C160 Skycatcher. Built a jumper to go from the panel cigarette lighter to this, then use standard iPad cord from this to the iPad. Zero additional noise. Installing two more for rear seat in new build.

July 31, 2020

Works as expected, not noticing any radio interference

July 21, 2020

Zero RFI compared to another consumer-grade panel-mount unit that broke through a level 6 squelch on my Icom A4. Now all I have to deal with is RFI generated by the high-frequency DC-DC converters in my consumer-grade LED strobe lights (wing tips and tail).

Dean S
May 13, 2020

Works great. Easy installation made every better by directions which state the reqd hole size ( 1.125). They even included the two reqd wire spades. Tested it on one hour flight--zero radio interference. GREAT product!

Ted W
April 14, 2020

LOVE IT!! 1/10th the price of others. Very easy to install. Best part of all is that I get no interference on the radios when using it to charge my phone and/or tablet. It also runs my ADS-B receiver. NO RADIO INTERFERENCE !!

December 28, 2019

These charging jacks just plain work. I have installed three on two experimental aircraft. No radio interference. No surprises. Excellent value.

December 22, 2019

Does exactly what it is supposed to. No radio or intercom interference. I bought and and installed a second one.

December 14, 2019

Previous USB power panel was causing profound RF interference and ‘open mic’ condition in my C-182. Contacted the manufacturer and was reassured this item was noise-free. After two-hour XC I can assure you this is a quality panel, at 1/10 the cost of the competition, and is very well shielded from RF interference. Chris E.

Chris E
September 23, 2019

Perfect for my cockpit. Just as advertised. Solid constructions. Good value. I can charge and use my iPad and iPhone on long flights. Highly recommend it

Gino C
June 22, 2019


Q: Does this EA smart dual USB unit have a RFI hash filter?

Yes, the unit has a built-in RFI filter.

Q: How many Amps should the fuse be on a 12V input?

The AMP should be 4.2 total.

Q: Will this unit fit in a 1-1/8 hole for cigarette lighter?

Yes, it should fit in the 1-1/8 hole.

Q: Can it be used on a certified aircraft?

This unit does not have FAA Approval.

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