What Is a Traxxas Battery Connector?
The standard Traxxas battery connector, often called the TRX plug, is used on many factory Traxxas ESCs and RTR vehicles. It is a rugged high-current connector that works well for bashers and racers, but it does limit your battery choices if all of your packs use XT60, XT90, EC5 or classic T-Plug connectors. A dedicated Traxxas battery connector adapter solves this problem by bridging between your existing LiPo packs and the stock TRX-equipped ESC.
Why Use a Traxxas Battery Adapter Instead of Re-Soldering?
Re-soldering every ESC or every battery in your fleet is time-consuming and risky if you are not comfortable with high-current wiring. A Traxxas battery adapter lets you keep the original TRX connector on the ESC while switching to widely available XT60, XT90, EC5 or T-Plug LiPo batteries.
- No permanent changes: The ESC stays stock, which is ideal for new vehicles or trucks that may be sold later.
- Fast installation: Plug your LiPo into the adapter, then plug the adapter into the TRX connector on the ESC.
- Flexible battery choice: Use the same batteries across different brands of RC cars without rebuilding harnesses.
- Reduced failure points: A single quality adapter is usually safer than multiple DIY splices and extensions.
XT60, XT90, EC5 and T-Plug to TRX – Choosing the Right Plug Adapter
Choosing the correct Traxxas battery plug adapter starts with the connector on your LiPo pack. Once you match the plug on the battery side, the TRX side will fit any modern Traxxas ESC that uses the standard Traxxas battery connector.
- XT60 to TRX: Ideal for 2S and 3S packs used in lighter 1/10 scale vehicles where overall weight and agility matter more than extreme current draw.
- XT90 to TRX: Better suited for high-current 4S and some 6S setups in heavy trucks such as X-Maxx, XRT and large 1/8 scale platforms.
- EC5 to TRX: A smart option if you already own many EC5-equipped batteries from other brands and want to run them on Traxxas vehicles.
- T-Plug to TRX: Designed for classic T/Dean style connectors, perfect for older packs that still perform well and deserve more runtime on modern Traxxas trucks.
For more advanced layouts that combine XT90 with TRX, XT60 or EC5 in parallel or series configurations, you can also explore our dedicated adapter range here: XT90 Male to Parallel / XT60 / TRX / EC5 Female Adapters.
Traxxas Vehicles That Commonly Use TRX Battery Connectors
Most modern Traxxas brushless and brushed trucks ship with TRX battery connectors right out of the box. These plug adapters are commonly used with popular models such as X-Maxx, XRT, Maxx, Sledge, Slash, Rustler, Bandit, Hoss and many other RTR vehicles. If your ESC features the standard Traxxas battery connector and you want to keep it intact, a plug adapter is the cleanest way to unlock more battery options.
When you are planning a new setup, think about the type of driving you do most often. Short-course trucks and stadium trucks may be perfectly happy on XT60 packs connected through an XT60-to-TRX adapter, while heavy 1/8 scale monsters really benefit from XT90 or EC5 to TRX solutions that handle higher current.
Safety Tips for Using Traxxas Battery Plug Adapters
Even though plug adapters make the wiring easier, it is still important to respect the limits of your connectors and LiPo packs. A few simple habits can dramatically improve reliability and safety:
- Always match the adapter to the connector on your battery and double-check polarity before the first run.
- Avoid stacking multiple adapters in a chain. Each extra connector adds resistance, heat and a potential failure point.
- During early test runs with a new adapter, pause occasionally and feel the connector and wires. Warm is normal; hot means the setup is drawing more current than the smallest connector is designed to handle.
- Inspect your adapters regularly for worn housings, loosened terminals or damaged solder joints and replace them at the first sign of overheating or discoloration.
For users who need additional connector types or more advanced conversion options, you can also explore our full adapter catalog here: Battery Plug & Connector Adapters. This upper-level collection includes XT series adapters, EC5 conversions, TRX compatibility solutions and other plug formats to support multi-brand RC fleets.