Parts/Batteries & charging/Charge leads & balance boards/ProTek RC Transmitter Charge Lead (DC Plug to 4mm Banana Plugs)
ProTek RC Transmitter Charge Lead (DC Plug to 4mm Banana Plugs)
ProTek RC

ProTek RC Transmitter Charge Lead (DC Plug to 4mm Banana Plugs)

Part # PTK-52124.0(3)
Where to buy
$2.99
AMain Hobbies
Seen Oct 12, 2026
$2.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is one transmitter charge lead from ProTek R/C. This charge lead has a DC style connector on one end (inner plug is Positive - 2.5mm, outer ring is Negative - 5.5mm) that will fit most radio systems, connected to 4mm banana plugs with high quality 22awg silicone wire. Be sure the check the polarity of your radio system charge connector when you plug this charge lead into your charger.

ProTek R/C is an AMain Sports & Hobbies brand.
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

Reviews4.0 · 3 reviews

Max RadkeVerified owneron ProTek RC Transmitter Charge Lead (DC Plug to 4mm Banana Plugs)

Quality of this charge lead is fine, don’t need to be running 10A through a transmitter so the thinner gauge wire is just fine. My issue is that the description states that it fits most transmitters… wish I would have known that it was NOT going to fit my Futaba radio. Oh well, live and learn.

1 found this helpful
thrusterVerified owneron ProTek RC Transmitter Charge Lead (DC Plug to 4mm Banana Plugs)

I just received this power supply to charger patch cord. The red (positive) banana plug goes to the center of the 5.5 mm charger plug.....good.....that works with my chargers. I got this cord to use with my new Protek 10 amp 12 volt power supply from Amain. This power supply fresh out of box today works great so far as it should, the fan runs all the time yet is silent. Back to this patch cord. The only thing not perfect is the wires are very thin gauge so if you are carrying this around often in your hobby travels it may not be super durable. Or if your charger is routinely pulling more than six amps this is probably not the best cable to use. Still for $2.99 it's fine for my turnigy accucel 6 amp charger mostly using it with 850-1300mah 3S and 4S lipos for the smaller airplanes and blade 300x helis.

1 found this helpful
Markon ProTek RC Transmitter Charge Lead (DC Plug to 4mm Banana Plugs)

Is the center Positive or is the outside positive?

What reviewers say

Reviews are limited to three, with mixed sentiment. One verified owner found the thin-gauge wire adequate for transmitter charging but reported that the cable did not fit their Futaba radio despite the listing saying it fits most transmitters. Another reviewer said it works with their chargers, with the red banana plug going to the centre of the 5.5 mm plug, and called it fine for the price, while noting thin wires may not be durable for frequent travel and are unsuitable for chargers drawing more than about six amps. The third review is a question about polarity and contains no evaluation of the product.

  • + Adequate for transmitter charging
  • + Low price
  • + Works with a 5.5 mm charger plug per one reviewer
  • − Thin-gauge wire may lack durability
  • − Not suited to chargers drawing over six amps
  • − Did not fit a Futaba transmitter despite listing
Summary generated from the reviews above.

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