Ultimate RC Charger Review: GT Power X2 Pro Dual Channel 400W

Welcome to an in-depth look at the GT Power X2 Pro, a dual-channel 400W charger that has quickly become my go-to device for all things RC battery charging. As someone deeply involved in the RC hobby, I’ve tested a fair share of chargers over time, from the smaller, simpler models to more powerful units. The X2 Pro stands out not just for its power but for its impressive array of features that cater to serious RC enthusiasts and racers alike.

In this review, I’ll share my hands-on experience with the GT Power X2 Pro, highlighting its core functions, unique features like tire warming and Bluetooth app integration, and why I think it offers incredible value, especially at its current price point of around £125 in the UK. Whether you’re running LiPo, NiMH, or other battery types, this charger deserves your attention.

GT Power X2 Pro Overview: Power and Versatility

The GT Power X2 Pro is a robust charger designed for versatility and speed. It boasts a maximum power output of 400 watts on DC input, which is perfect if you plan to use an external power source like a car battery or generator while out in the field. When plugged into a standard AC mains supply, it delivers up to 200 watts total—100 watts per channel across its two independent channels.

This dual-channel design is one of the charger’s key strengths. You can charge two batteries simultaneously, with intelligent power management that prioritises charging on one channel if both are plugged in but limits power to each to balance the load. This means if you have a battery charging at full speed on channel one, the second channel will automatically adjust to a lower wattage until the first battery is done, then switch priorities. This smart feature ensures efficient and safe charging without manual intervention.

Dual Charging and Discharging Capabilities

The X2 Pro isn’t just about fast charging. It also supports dual charging and discharging, allowing you to charge one battery while discharging another simultaneously. This is especially handy for NiMH (nickel metal hydride) batteries, which often need cycling to maintain consistent voltage and performance. For mini racers or anyone who uses NiMH batteries, this cycling function can extend battery life and improve race-day performance.

Another noteworthy feature is the battery repair mode tailored for LiPo batteries. If you notice inconsistent performance or voltage drops that aren’t due to physical damage, running the battery through this repair mode can sometimes revive it by balancing the cells and improving battery health.

Unique Features: FB Disc, Tire Warmer, and Servo Testing

The X2 Pro packs some innovative extras that set it apart from many other chargers in this price range. One such feature is the FB Disc mode—a power transfer function that allows you to discharge one battery into another. For example, if you have a fully charged 3S battery that you’re not currently using, and a 2S battery that needs topping up, you can connect the 3S battery as an external power source and transfer up to 95% of its power to the 2S battery. This is a clever way to maximise battery usage without needing an external power supply or wasting charge.

For the racers out there, the built-in tire warmer function is a game-changer. While I haven’t personally used this feature yet, the X2 Pro includes a connector to plug in your tire warming cups, allowing you to set and maintain a specific temperature. Tire warming is crucial for serious RC racers who want to ensure optimal grip and performance right out of the gate, eliminating the need for a separate tire warmer device.

Additionally, the charger includes an integrated servo tester accessible through the same connector. This means you don’t have to purchase a separate servo testing tool, saving space and simplifying your gear setup.

Bluetooth App Integration: Control and Monitor from Your Phone

One of the standout aspects of the GT Power X2 Pro is its Bluetooth functionality. You can download the X2 Pro app from both the Google Play Store and Apple App Store, enabling you to wirelessly control and monitor your charger via your smartphone or tablet. This modern convenience allows you to start, stop, and configure charging sessions without needing to be physically next to the charger, which is especially useful at busy tracks or when you’re multitasking.

The app offers a clean interface where you can select the channel, battery type, cell count, charge mode, and current. It also provides real-time data such as cell voltages, charging current, total voltage, cycle count, and charging status. This level of information helps you keep a close eye on your batteries’ health and charging progress, enhancing safety and efficiency.

Charging Demonstration and User Experience

Charging a LiPo battery with the X2 Pro is straightforward. Connect the battery to the power output and the balance lead to the charger, then select the battery type and charging mode on either the charger’s display or through the app. The charger will verify the battery connection and display a confirmation screen showing battery details like cell count and voltage.

For example, when charging a 2S LiPo battery rated at 6200 mAh, I set the current to 6.2 amps (1C rate), and the charger handled it flawlessly. The display showed each cell voltage (around 4.09V per cell), the charging current, total voltage, and even the cycle count. The charger alerted me when the battery was fully charged, ensuring I didn’t overcharge or damage the pack.

On the second channel, I connected a NiMH battery pack for my mini RC car. The charger recognised the 4.8V NiMH pack, displayed its 82% charge status, and began charging at the selected current. The ability to charge different chemistries simultaneously is a huge time saver, especially for hobbyists with multiple types of batteries.

One important safety note: when charging LiPo batteries, always use a LiPo safe bag or container to minimise risk in case of failure. The X2 Pro’s precise balance charging and safety protocols add layers of protection, but best practice always includes physical safeguards.

Value for Money: Why the GT Power X2 Pro Stands Out

At around £125 in the UK, the GT Power X2 Pro offers exceptional value. Many chargers in this price range don’t come close to offering 400W power output, dual independent channels, Bluetooth app control, and such a rich feature set including tire warming and servo testing.

Compared to other chargers I’ve used, the X2 Pro combines power, functionality, and user-friendly design in a compact package. It’s durable, reliable, and has performed consistently well over a month of daily use, both at home and trackside.

Pros and Cons Summary

• Pros: High power output (400W DC), dual independent channels, smart power prioritisation, Bluetooth app control, tire warmer integration, battery repair mode, multi-chemistry support, compact design.
• Cons: Slight learning curve for beginners with app setup, tire warmer feature not yet tested personally, requires a correct balance lead connection to avoid errors.

Final Thoughts and Recommendations about the GT Power X2 Pro

After using the GT Power X2 Pro extensively, I can confidently say it’s the best charger I’ve used at this price point and power level. Whether you’re a casual hobbyist or a serious racer, this charger covers all the bases with smart features and strong performance.

The ability to control everything from your phone via Bluetooth adds a modern convenience that makes charging less of a chore and more of a seamless part of your RC routine. The dual-channel design and intelligent power management mean you can keep multiple batteries ready to go without fuss.

If you’re in the market for a reliable, powerful, and feature-rich RC charger, the GT Power X2 Pro is definitely worth considering. It’s become my charger of choice and I recommend it highly to anyone looking to level up their RC battery game.

For those interested, you can find the GT Power X2 Pro available at TJD Models. Also, don’t forget to download the companion app from the Google Play Store or Apple App Store to get the most out of your charger.

Happy charging, and may your RC adventures be powered up and ready to roll!

 🔌 ULTIMATE RC CHARGER REVIEW: GT Power X2 Pro Dual Channel 400W! 🔋 #rc #rccharger