Traxxas 3500mAh 7.4V 2-Cell 25C LiPo Battery TRX2825X

Overview

The Traxxas 3500mAh 7.4V 2-Cell 25C LiPo Battery TRX2825X is a premium power solution designed specifically for Traxxas mini-scale RC models, delivering maximum punch and exceptional runtime to keep your RC car UK adventures going strong. This certified LiPo battery is engineered to unlock the full potential of your Mini Maxx, Mini Rally VXL, Mini Slash, or Mini XRT, providing the on-demand power these high-performance Traxxas models are built to deliver. Whether you're a seasoned RC enthusiast or new to the world of ready to run RC vehicles, this battery represents a significant upgrade in performance and reliability.

What sets this Traxxas LiPo battery apart in the competitive RC car market is the integration of Traxxas' exclusive iD battery system — the easier and safer way to charge your Traxxas batteries. This innovative connector technology ensures foolproof charging, eliminating the risk of reversed polarity and providing peace of mind every time you power up your model. The 3500mAh capacity strikes the perfect balance between weight, runtime and power delivery, making it an ideal choice for both casual bashers and competitive racers looking for consistent, reliable performance from their brushless RC vehicles.

Only Traxxas gives you more of what you want most: simple installation, a great price, and the most speed and runtime available. The stick battery configuration fits seamlessly into compatible Traxxas mini models, and the generous 25C discharge rating ensures your vehicle can access maximum power whenever you need it. This is a genuine Traxxas replacement part, manufactured to the exacting standards that have made Traxxas the world's number one RC brand.

Key Features

• Traxxas iD Connector System — The exclusive iD battery system provides foolproof charging and safer operation than traditional battery connectors, automatically preventing dangerous polarity reversal and giving you complete confidence in your setup. This proprietary system is found only on genuine Traxxas batteries and chargers.
• 3500mAh High-Capacity Design — The 3500mAh capacity delivers extended runtime on a single charge, allowing you to enjoy longer sessions with your Mini Maxx, Mini Rally VXL, or Mini Slash before needing to recharge. This capacity provides the perfect balance for mini-scale RC vehicles, offering substantial power without excessive weight.
• 25C Continuous Discharge Rating — The 25C rating means this battery can safely and continuously deliver 87.5 amps of current (25 × 3.5Ah), providing explosive acceleration and peak performance whenever you need it. This rating is more than adequate for the demanding requirements of modern brushless mini-scale RC vehicles.
• 2S LiPo Chemistry (7.4V) — The 2-cell lithium polymer configuration delivers 7.4V nominal voltage, perfectly matched to the electrical architecture of compatible Traxxas mini models. Two-cell LiPo batteries offer an excellent compromise between power output, weight and runtime.
• Compact Stick Configuration — The stick battery format is specifically designed to fit into the battery compartments of Traxxas mini-scale models, ensuring seamless integration without requiring additional modifications or adapters to your RC vehicle.
• Wide Model Compatibility — This genuine Traxxas battery is the approved replacement for Mini Maxx, Mini Rally VXL, Mini Slash BL-2S 4X4, and Mini XRT VXL-3S models, making it an essential spare for any Traxxas mini collection. Having multiple batteries means more continuous fun without downtime between charges.
• Certified Performance Standards — Every Traxxas Certified iD-equipped LiPo battery undergoes rigorous quality control testing, ensuring consistent performance, reliability and safety across every charge cycle and operating condition.

Technical Performance

The Traxxas 3500mAh 7.4V 2-Cell 25C LiPo Battery represents the pinnacle of mini-scale RC power solutions, engineered with precision to deliver consistent, reliable performance in demanding racing and bashing applications. At 110mm in length, 35mm in width, and 22mm in height, the stick-format battery provides an optimal weight-to-capacity ratio that won't compromise your RC vehicle's handling characteristics or acceleration response. The 25C continuous discharge rating of this LiPo battery means it can reliably supply 87.5 amps continuously, with short-duration bursts available for extreme acceleration and climbing. The 7.4V nominal voltage (two-cell 2S configuration) is the standard for many modern Traxxas mini-scale vehicles, particularly those equipped with brushless motors and modern electronic speed controllers (ESCs). The engineering of this battery prioritises the marriage of runtime longevity and power delivery — the 3500mAh capacity ensures you'll enjoy extended run times without the weight penalty of larger capacity alternatives. When paired with Traxxas' exclusive iD charger system, this battery charges with absolute safety and efficiency, making it an investment in both performance and peace of mind for UK RC enthusiasts.

What's in the Box

• 1 × Traxxas 3500mAh 7.4V 2-Cell 25C LiPo Battery with integrated iD Connector

Frequently Asked Questions

• Is this battery compatible with my Traxxas RC car? — The Traxxas 3500mAh 7.4V 2-Cell 25C LiPo Battery is specifically designed as a replacement for Traxxas mini-scale models, including the Mini Maxx, Mini Rally VXL (available in Ford RS200 variants in multiple colours including grey, red, and blue), Mini Slash BL-2S 4X4 Short Course Truck (available in yellow, orange, pink, and green), and Mini XRT VXL-3S (available in red, blue, green, and orange). If your Traxxas vehicle is one of these models, this battery is the perfect fit and the factory-approved choice.
• What charger do I need for this battery? — This battery features the Traxxas iD connector, which means you must use a Traxxas iD-compatible charger. This proprietary system ensures safe, foolproof charging with automatic polarity detection. Using an incompatible charger could damage the battery or create a safety hazard, so always use genuine Traxxas iD charging equipment.
• How long will this battery last per charge? — Runtime depends on several factors including the specific vehicle you're using, terrain, driving style, and motor/ESC combination. However, the generous 3500mAh capacity will typically provide 15-25 minutes of continuous runtime in most mini-scale Traxxas vehicles, making it ideal for extended bashing sessions or back-to-back races when paired with a second battery.
• What does the 25C rating mean and why does it matter? — The 25C rating indicates the continuous discharge rate, meaning this battery can safely and continuously deliver 25 times its capacity in amps (3.5Ah × 25 = 87.5A). This high discharge rate is crucial for mini-scale brushless RC vehicles, ensuring your battery can supply sufficient current for rapid acceleration, hill climbing, and peak performance without voltage sag or safety concerns.
• Is this suitable for beginners? — Yes, absolutely. The Traxxas iD system actually makes this battery safer and easier for beginners because the connector design prevents dangerous polarity mistakes. The 3500mAh capacity provides manageable runtime for learning and practice sessions, and as a genuine Traxxas product, it integrates seamlessly with factory-equipped mini-scale RC vehicles without any technical knowledge required.
• Can I use this battery with other RC brands? — No, the proprietary Traxxas iD connector means this battery is exclusively compatible with Traxxas iD-equipped chargers and vehicles. This design choice prioritises safety and compatibility — you cannot use this battery with non-Traxxas RC vehicles or standard LiPo charging systems.
• How should I care for and store this LiPo battery? — Store your Traxxas LiPo battery at room temperature in a dry location, ideally in a LiPo-safe storage bag or metal container designed for battery storage. Never store a fully discharged battery; Traxxas recommends storing at approximately 3.7V (around 50% charge) if the battery won't be used for extended periods. Always inspect for physical damage before charging, and never charge an swollen or damaged battery.
• How does this compare to purchasing multiple smaller batteries? — While the 3500mAh capacity offers excellent runtime, many UK RC enthusiasts purchase multiple batteries to eliminate downtime — one battery can be charging while another is in use. The investment in two or more Traxxas batteries ensures continuous fun at the track or bashing spot, which is why having a spare 3500mAh battery is considered essential equipment for serious RC car UK enthusiasts.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas 3500mAh 7.4V 2-Cell 25C LiPo Battery TRX2825X today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.