Parts/Batteries & charging/Charge leads & balance boards/ProTek RC 2S Charge/Balance Adapter (T-Style Ultra Plug to 4mm Bullet)
ProTek RC 2S Charge/Balance Adapter (T-Style Ultra Plug to 4mm Bullet)
ProTek RC

ProTek RC 2S Charge/Balance Adapter (T-Style Ultra Plug to 4mm Bullet)

Part # PTK-52385.0(4)
Where to buy
$9.99
AMain Hobbies
Seen Oct 12, 2026
$9.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is a 2S balance/charge adapter from ProTek R/C. This adapter is designed for 2S Li-Poly hard packs that use two 4mm bullet connectors for the main power connection, and a 2mm bullet connector for the balance connector. This adapter is approximately 16" long tip to tip, has bullet connectors on the battery end, a female ultra plug to attach to your charge lead, and an XH style balance connector to connect to your balancer on the other end.

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...

Reviews5.0 · 4 reviews

paul fraserVerified owneron ProTek RC 2S Charge/Balance Adapter (T-Style Ultra Plug to 4mm Bullet)

wire assy. comes very well put together.solder and heat shrink are perfect.wire assy. is very long

2 found this helpful
gilbert dakanayVerified owneron ProTek RC 2S Charge/Balance Adapter (T-Style Ultra Plug to 4mm Bullet)

i like the fact that it is more than a foot in length. 14 +/- inches long!!! charging on an ammo can is much more easy. i don't know if the connectors are original deans though. mine came so tight, i needed to use pliers to connect them. i hope it loosens up as i use it. even with my little niggle with the connector, i am very satisfied with this product. i will not have 2nd thoughts buying one again.

1 found this helpful
AnonymousVerified owneron ProTek RC 2S Charge/Balance Adapter (T-Style Ultra Plug to 4mm Bullet)

Does as intended. Well soldered and nice length. Nothing more to say really, other than it's a needed product that is well put together.

1 found this helpful
Ted BurnsVerified owneron ProTek RC 2S Charge/Balance Adapter (T-Style Ultra Plug to 4mm Bullet)

The wires were a little smaller and harder than I expected; but it has a tremendous reach, perfect for charging lipos in a lipo sack. Probably not the best choice for running in a car... Get shorter wires without the balancer. On the plus it is the only lead on the market with a balancer!

1 found this helpful
What reviewers say

All four verified owners rate this 2S charge/balance adapter 5 out of 5 and describe it as well assembled, with solder joints and heat shrink described as neat. Reviewers repeatedly note its long lead, about 14 inches, which they find useful for charging from an ammo can or lipo sack. Several points of disagreement or caveats appear. One reviewer found the connectors very tight to join, requiring pliers, and hoped they would loosen with use. Another found the wires smaller and stiffer than expected. One reviewer felt the length made it a poor choice for running in a car, and was unsure whether the connectors were genuine Deans parts. All reviews refer to the same variant, the T-Style Ultra Plug to 4mm Bullet version.

  • + Well assembled with neat solder and heat shrink
  • + Long lead, about 14 inches, useful for charging
  • + Does what it is intended to do
  • + Includes a balancer, which one reviewer says is rare
  • − Connectors very tight to join, needed pliers
  • − Wires smaller and stiffer than expected
  • − Length less suitable for running in a car
  • − Unclear whether connectors are genuine Deans
Summary generated from the reviews above.

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