Traxxas LiPo 2S 5000mAh 7.4V 25C iD Power Cell Battery TRX2842X

Overview

The Traxxas LiPo 2S 5000mAh 7.4V 25C iD Power Cell Battery TRX2842X is a premium lithium polymer battery pack engineered specifically for Traxxas RC vehicles. This certified iD-equipped power cell delivers the punch and on-demand power that serious RC enthusiasts demand, providing the performance foundation needed to reach the top speeds your Traxxas model is built to achieve. Whether you're driving a brushless RC short course truck, an RC crawler, or any compatible Traxxas electric model, this battery pack is designed to maximise performance and runtime in equal measure.

Built for RC car UK enthusiasts who refuse to compromise on power delivery, the Traxxas iD Power Cell represents a significant step forward in battery technology and safety. This isn't simply another generic LiPo battery—it's a Traxxas-certified power solution that has been engineered and tested to work seamlessly with a wide range of ready to run RC models from the Traxxas catalogue. The exclusive iD battery system makes charging easier, safer, and more intuitive than ever before, giving you simple installation, excellent value for money, and the most speed and runtime available in its class.

The 5000mAh capacity ensures extended run times for your RC bashers and racers, whilst the 25C discharge rate provides the current delivery needed for high-performance driving. With a stick-style form factor measuring 137mm in length, this battery is designed to fit perfectly in Traxxas models whilst remaining compact and lightweight at just 9.9 ounces. Only Traxxas gives you more of what you want most: outstanding performance, reliability, and value combined in one proven package.

Key Features

• Traxxas Certified iD Battery System — The exclusive iD technology ensures safer, easier charging by automatically communicating battery status and charging parameters to compatible chargers, eliminating guesswork and reducing the risk of overcharging or damage to your battery pack.
• 5000mAh Capacity — This substantial capacity delivers extended runtime for your RC driving sessions, giving you more time between charges to enjoy your hobbies without constantly swapping battery packs.
• 7.4 Volt 2-Cell Configuration — The 2S LiPo design provides excellent performance across a wide range of Traxxas ready to run RC models, offering the perfect balance between power and efficiency for brushless and brushed motors alike.
• 25C Continuous Discharge Rate — With a 25C rating, this battery can safely deliver 125 amps of continuous current (5000mAh × 25C), making it ideal for high-performance driving, acceleration, and maintaining responsiveness during demanding off-road courses.
• Traxxas iD Connector — The proprietary iD connector ensures secure, reliable connections with all compatible Traxxas chargers and models, eliminating compatibility concerns and providing peace of mind during every charge cycle.
• Stick-Style Form Factor — The compact stick design measures 137mm in length and weighs just 9.9 ounces, ensuring it fits seamlessly into the battery compartments of Traxxas vehicles without adding excessive weight or bulk.
• Engineered for Maximum Performance — Traxxas has designed this battery specifically to work with their electric models, meaning you're getting a power solution that has been tested and optimised for genuine top speed and acceleration potential.
• Reliable Build Quality — As a Traxxas certified product, this battery meets strict quality standards and undergoes rigorous testing to ensure long lifespan, consistent performance, and safety across thousands of charge cycles.

Technical Performance

The Traxxas LiPo 2S 5000mAh 7.4V 25C iD Power Cell Battery delivers exceptional technical performance across all key metrics. The 7.4 volt nominal voltage (two 3.7V cells in series) provides the power envelope needed for brushless RC short course trucks, RC crawlers, and various other Traxxas electric models to achieve their design performance specifications. The 5000mAh capacity ensures substantial runtime—typically 10 to 20 minutes of continuous driving depending on vehicle type, motor efficiency, and driving style—making this an ideal primary battery or backup pack for weekend bashers and racers alike. The 25C continuous discharge rating translates to 125 amps of safe continuous discharge current, providing the responsive, punchy acceleration that separates Traxxas vehicles from lesser competitors. The battery pack measures 137mm in length, 43mm in width, and 24mm in height, offering excellent portability whilst maintaining the structural integrity needed to withstand the vibrations and impacts of serious RC driving. The stick configuration is lightweight at 9.9 ounces (approximately 281 grams), ensuring minimal added weight to your model. The Traxxas iD connector system ensures secure connections and automatic battery recognition, whilst the certification process guarantees compatibility with a vast range of Traxxas models from crawlers through to high-speed buggies and trucks. This battery pack is specifically engineered to work with Traxxas chargers and vehicles, meaning you're purchasing a system that has been professionally matched and tested for optimal performance and safety.

Compatible Models

The Traxxas LiPo 2S 5000mAh 7.4V 25C iD Power Cell Battery is compatible with an extensive range of Traxxas RC vehicles, including the Bigfoot HD 1:10 Electric XL-5 2WD RTR Monster Truck, Bigfoot HD BL-2S 1:10 Electric 2WD Monster Truck, Ford Fiesta ST Rally VXL and BL-2S variants in multiple colours, DCM M41 Catamaran 40-inch VXL Brushless models, Slash Ultimate 4x4 VXL 1:10 4WD Brushless Short Course Truck, Slash VXL 1:10 4x4 RTR Short Course Truck in orange, red, blue and green options, Slash 1:10 2WD RTR VXL-3S Brushless Short Course Truck variants, Slash Extreme HD VXL 1:10 2WD RTR Brushless Electric Short Course Truck in multiple colours, Spartan 2.4GHz TSM VXL-6S Marine with Velineon 540XL motor, Spartan SR VXL 1:10 36-inch Electric Brushless Race Boat, TRX-4 Chevrolet K10 Cheyenne High Trail Edition, TRX-4 Ford F-150 Ranger XLT High Trail Edition 1:10 Trail Crawler, TRX-4 1972 Chevrolet K5 Blazer High Trail Edition 1:10 4WD RTR, TRX-4 1979 Chevy Blazer 1:10 4x4 Electric All-Terrain Crawler with Clipless Body, TRX-4 Nissan Pathfinder SE-V6 3S 4x4 RTR, TRX-4 2021 Ford Bronco 1:10 Crawler in orange, black, red and white, TRX-4 Defender 4WD RTR with Clipless Mounting, TRX-4 Sport Hightrail Edition, TRX4 Sport 1:10 4X4 Electric All-Terrain Crawler Truck with Clipless Body, TRX-4 Sport with Deep-Terrain Traxx and Clipless Body, and UDR Unlimited Desert Racer Pro-Scale 4WD RTR Short Course Truck variants. If you own any Traxxas ready to run RC model, this battery pack is highly likely to be compatible—check your vehicle's specifications or contact our knowledgeable team for confirmation.

What's in the Box

• Traxxas LiPo 2S 5000mAh 7.4V 25C iD Power Cell Battery (TRX2842X)

What You Need to Complete

• Traxxas iD-compatible charger (such as the Traxxas iD Charger or similar iD-equipped charging system)
• Compatible Traxxas RC model with iD battery connector
• Fireproof LiPo battery storage container or charging pouch
• Safety equipment and dedicated LiPo charging area away from flammable materials

Safety and Storage Information

Lithium Polymer batteries require careful handling and storage to ensure safety and longevity. This battery pack should only be charged using chargers specifically designed for LiPo batteries, and the Traxxas iD system is recommended for optimal safety and performance. Always store and charge your LiPo battery in a fireproof container or specialist LiPo pouch—never leave the battery inside your RC model when not in use. Monitor the charging process at all times and never leave a LiPo battery unattended whilst charging. This product is not suitable for use by children and should only be handled by adults familiar with LiPo battery safety protocols. For complete information regarding chemical hazards, please refer to California Proposition 65 warnings at www.P65Warnings.ca.gov.

Frequently Asked Questions

• What is the Traxxas iD battery system and why is it better than standard LiPo charging? — The Traxxas exclusive iD battery system is a revolutionary approach to LiPo charging that makes the process easier and considerably safer than traditional methods. The iD technology allows the battery pack to communicate directly with compatible chargers, automatically transmitting battery status, cell voltage information, and charging parameters. This eliminates the need for manual configuration, reduces the risk of overcharging or undercharging, and helps extend battery lifespan. Only Traxxas gives you this level of automation and safety in a ready to use system, making it ideal for both beginners and experienced RC enthusiasts.
• How long will this battery last on a single charge? — Runtime varies depending on your specific RC model, motor type, driving style, and terrain conditions. With the 5000mAh capacity and typical brushless motors found in Traxxas vehicles, you can generally expect 10 to 20 minutes of continuous driving per charge. Weekend bashers and casual drivers often run this battery through 5 to 8 full cycles per session, making it an excellent primary battery or backup pack for extended RC fun.
• Is this battery suitable for beginners to RC? — Yes, the Traxxas LiPo 2S 5000mAh 7.4V 25C iD Power Cell Battery is excellent for beginners, particularly when used with Traxxas ready to run models and iD-compatible chargers. The iD system takes the guesswork out of charging and makes the entire process safer and more intuitive. However, you must follow all safety instructions carefully, use only LiPo-specific chargers, and store the battery properly in a fireproof container. If you're new to LiPo batteries, take time to read the safety information and consider asking our knowledgeable team for guidance.
• What is the 25C rating and what does it mean for performance? — The C rating indicates the maximum continuous discharge rate relative to battery capacity. A 25C rating on a 5000mAh battery means the pack can safely deliver 125 amps of continuous current (5000 × 25 ÷ 1000 = 125A). This provides excellent power delivery for acceleration, high-speed driving, and maintaining responsiveness during demanding courses. The 25C rating is more than sufficient for most Traxxas RC vehicles and ensures you get the performance these models were designed to deliver.
• Which Traxxas RC models use this battery? — This 2S LiPo is compatible with dozens of Traxxas models including Bigfoot HD, Ford Fiesta ST Rally vehicles, Slash series short course trucks, TRX-4 crawlers, Spartan race boats, and UDR unlimited desert racers. The broad compatibility makes this an essential battery for anyone with multiple Traxxas vehicles, or an excellent primary battery for newer models. If you're unsure about compatibility with your specific model, our team can confirm before you purchase.
• Do I need a special charger for this battery? — Yes, this is a LiPo battery and must only be charged using chargers specifically designed for lithium polymer packs. The Traxxas iD system makes charging significantly easier and safer by automating the process. Standard NiMH or lead-acid chargers will not work and could damage the battery or cause safety hazards. We recommend using an official Traxxas iD charger for best results and maximum safety.
• How do I store this battery safely? — Always store LiPo batteries in a fireproof container or specialist LiPo pouch, away from heat sources and flammable materials. Do not leave the battery inside your RC model when not in use. Store in a cool, dry location and avoid extreme temperatures. If you plan to store the battery for an extended period, charge it to approximately 50% capacity to maintain cell health.
• What makes this battery different from generic LiPo packs? — This is a Traxxas-certified battery pack engineered specifically for Traxxas vehicles. It has been tested and optimised to work perfectly with Traxxas models, ensuring you get genuine top speed, acceleration, and runtime performance. The iD connector and system provide safety and ease of use that generic batteries cannot match. When you buy a Traxxas battery, you're buying a complete system designed, tested, and guaranteed by the manufacturer.

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 LiPo 2S 5000mAh 7.4V 25C iD Power Cell Battery TRX2842X 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.