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Parts/Batteries & charging/Charge leads & balance boards/Ruddog 4S Charge Lead w/4-5mm Stepped Bullets (40cm) (7 Pin-PQ)
Ruddog 4S Charge Lead w/4-5mm Stepped Bullets (40cm) (7 Pin-PQ)
Ruddog

Ruddog 4S Charge Lead w/4-5mm Stepped Bullets (40cm) (7 Pin-PQ)

Part # RDGRP-02183.0(3)
Charge leads & balance boardsAircraftLandcraftRotorcraftWatercraft
Where to buy
$15.07
AMain Hobbies
Seen Oct 12, 2026
$15.07Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This Ruddog 4S Charge Lead with 4-5mm Stepped Bullets was developed to charge 4S LiPo batteries with 4mm or 5mm bullet tubes and 5 pin balance port. This charge cable is 40cm in length and features 12 awg cables. This charge lead features 4mm/5mm step down bullet connectors, to fit batteries that feature 4mm and 5mm bullet holes, a 5-pin balance port, with 4mm bullets on the charger inputs and a 7-pin PQ type balance connector.

Specifications:
Length: 40cm
Connectors: 4mm/5mm step down bullet connectors
Compatible Chargers: Models w/4mm bullet charging inputs
Cables: 12AWG 
Balance Connector: 7-Pin PQ
Compatible batteries: 4S Li-Po packs

Reviews3.0 · 3 reviews

Scott AvoyVerified owneron Ruddog 4S Charge Lead w/4-5mm Stepped Bullets (40cm) (7 Pin-PQ)

I got the 4S 40cm, 5 pin xh to 7 pin pq so that I could bypass the balance board going into my Protek 625 Duo from my Reedy sg4 5200 4S. The reedy has an internal male xh balance plug so this looked like a good solution. Plugged it all up and got a fail. Checked the pin outs and had to swap pins 1-5 and 2-4 on the xh side so that it all worked right. Looked at the male-male xh balance cable that come with the reedy battery and found that it has the 1-5 and 2-4 pins swapped there too so I’m not sure if that’s standard for internal balance ports or if that’s a reedy sg4 specific situation. So. 3 stars…not sure who is using a non-standard pin out but 5 minutes of work got this working.

Trevor FurlotteVerified owneron Ruddog 4S Charge Lead w/4-5mm Stepped Bullets (40cm) (7 Pin-PQ)

The quality is second to none. The balance wire actually has a clip to lock it into your charger which is nice. However, you need an adapter for the balance lead in order to actually plug it into your 4S pack. Pack has female connector, charging lead has female connector. Why?

Josh StephensVerified ownerMay 11, 2024on Ruddog 4S Charge Lead w/4-5mm Stepped Bullets (40cm) (7 Pin-PQ)

Had to rewire the balance lead. 2 wires were switched

What reviewers say

Three verified-owner reviews of this 4S charge lead with 4-5mm stepped bullets and a 7-pin PQ balance connector. Reviewers report a mismatch between the lead's balance wiring and their packs. One reviewer found two balance wires switched out of the box and rewired it. Another found the pin order on the XH side swapped (pins 1-5 and 2-4) relative to their Reedy pack's internal balance port, and fixed it in about five minutes; they were unsure whether this swap is standard. A third reviewer praised the build quality and a clip that locks the balance wire into the charger, but said an adapter is needed because both the pack and lead have female balance connectors. Overall, reviewers agree on build quality and that the balance wiring needs attention before use.

  • + Build quality praised
  • + Balance wire clips into charger
  • − Balance wires switched out of the box
  • − Pin order mismatch with some packs
  • − Adapter needed for female-to-female balance connection
Summary generated from the reviews above.

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