Traxxas LiPo 5200mAh 7.4v 2-cell 35C LiPo Battery TRX2844R

Overview

The Traxxas LiPo 5200mAh 7.4v 2-cell 35C LiPo Battery TRX2844R is a premium racing-grade power solution designed for competitive RC car enthusiasts across the UK. Whether you're running a brushless RC short course truck, stadium truck, or any compatible Traxxas model, this hard case LiPo battery delivers the consistent power and performance you need to dominate on the track. Engineered specifically for spec-class racing where rules and regulations are strictly enforced, this battery meets all sanction race requirements, making it the ideal choice for serious competitors who demand compliance alongside performance.

What sets this battery apart from standard RC power packs is its combination of robust engineering and racing-proven technology. The 5200mAh capacity ensures extended runtime, allowing you to complete longer heats and practice sessions without constantly swapping batteries. The enhanced 35C discharge rate provides extra punch for brushless systems, delivering the responsive throttle response and acceleration that Traxxas models are built to handle. This is not a battery for casual bashers—this is professional-grade equipment for those who want to bring home the win.

Every Traxxas Certified iD-Equipped LiPo battery in this range provides the punch and on-demand power to reach the top speeds that Traxxas RC cars are engineered to deliver. Traxxas's exclusive iD battery system eliminates guesswork from charging, making it the easier and safer way to charge your racing batteries. For RC car UK enthusiasts looking for simple installation, competitive pricing, and maximum speed and runtime, Traxxas gives you more of what you want most.

Key Features

• Hard Case Protection — The tough outer hard case shields the battery cells from crash damage during intense racing, ensuring your investment remains protected even when things get rough on the track or bash course. This durable casing is essential for maintaining battery integrity in competitive environments where impacts are inevitable.
• Spec-Class Racing Design — Built from the ground up to meet sanction race requirements, this battery is approved for use in regulated racing leagues and competitions across the UK and beyond. You'll never face disqualification due to battery non-compliance when using this certified power pack.
• 35C Discharge Rate — The enhanced 35C continuous discharge rating means this battery can deliver maximum current consistently without throttling performance, providing the extra punch needed for brushless systems to accelerate hard and maintain peak speed throughout your race run.
• Traxxas Certified iD System — The integrated Traxxas iD battery connector and management system eliminates the need for guesswork during charging. Simply connect to any Traxxas iD-compatible charger and let the system handle voltage detection and safe charging automatically, protecting your battery and charger from incompatibility issues.
• 5200mAh Capacity — With 5200mAh of charge capacity, you get extended runtime compared to smaller batteries, allowing longer practice sessions or heat races before needing to recharge. This translates to more track time and better opportunities to refine your driving technique.
• 7.4-Volt 2-Cell Configuration — The 2S (2-cell) LiPo configuration at 7.4 volts is the standard power solution for 1/10-scale brushless RC vehicles, perfectly balancing speed, runtime, and compatibility with the latest generation of brushless motors and electronic speed controllers.
• Simple Installation — Traxxas designs all their batteries with user-friendly installation in mind. No special adapters, no complicated connections—just straightforward compatibility with Traxxas models and chargers, so you spend less time preparing and more time racing.

Technical Performance

This 7.4-volt 2-cell hard case LiPo battery represents the pinnacle of racing-grade power delivery for 1/10-scale brushless RC vehicles. The 35C discharge rate is specifically engineered to support the high current demands of modern brushless motor and ESC combinations, ensuring stable voltage delivery and consistent acceleration even when pushing your vehicle to its limits. At 5200mAh capacity, the battery provides substantial runtime—typically 15-25 minutes of continuous racing depending on driving style and throttle application—making it practical for both competitive heats and extended practice sessions. The hard case construction uses durable composite materials designed to absorb impact energy during crashes, protecting the internal cell structure from physical damage that could compromise safety or performance. The Traxxas iD connector and management system automatically detects battery voltage and configuration, communicating with compatible chargers to ensure optimal charging parameters and cell balance. This intelligent system eliminates overcharging risks and extends overall battery lifespan through proper charge management. The battery dimensions of 139mm length, 47mm width, and 25mm height ensure it fits securely in battery compartments designed for standard 2S hard case packs. As a certified racing battery, this power pack meets all sanction requirements for competitive events, making it the choice of serious racers who need compliance alongside raw performance. Whether you're racing a Traxxas Slash 4X4 BL-2S or another compatible brushless vehicle, this battery delivers the responsive, punch-filled power delivery that competitive drivers demand.

What's in the Box

• Traxxas LiPo 5200mAh 7.4v 2-cell Hard Case Battery with Traxxas iD Connector

Frequently Asked Questions

• Is this battery suitable for competitive RC racing in the UK? — Yes, absolutely. This battery is specifically designed for spec-class racing and meets all sanction race requirements, meaning it's approved for use in regulated competitive events. If you're racing in any organized league or competition, this is the battery choice that guarantees compliance from the start.
• What is the Traxxas iD battery system and why does it matter? — The Traxxas iD system is an intelligent battery management technology that automatically communicates with compatible chargers about the battery's voltage and configuration. This means your charger automatically adjusts to the correct settings, eliminating the risk of overcharging or using incorrect charge rates. It's the easier and safer way to charge racing batteries, and it extends battery lifespan through proper charge management.
• How long will this battery run on a single charge? — Runtime depends on your driving style, vehicle weight, terrain, and throttle application, but you can typically expect 15-25 minutes of continuous racing from a full charge. This is sufficient for most competitive heats and extended practice sessions, though serious racers often carry multiple batteries to rotate between charges.
• What vehicles is this battery compatible with? — This 2S 7.4v LiPo is compatible with any Traxxas brushless RC vehicle designed for 2-cell LiPo batteries, including the Traxxas Slash 4X4 BL-2S in both green and Fox liveries, as well as other compatible models in the Traxxas lineup. Check your vehicle's manual to confirm 2S compatibility before purchase.
• Why is the 35C discharge rate important? — The 35C rating means this battery can safely and continuously deliver 35 times its capacity in amps. For a 5200mAh battery, that's approximately 182 amps continuous output. This high discharge rate is essential for brushless systems to deliver responsive acceleration and maintain peak speed without voltage sag during hard acceleration or competitive racing.
• What makes the hard case better than soft case batteries? — Hard case batteries feature a rigid protective shell that absorbs impact energy during crashes, protecting the internal cells from physical damage that could cause shorts, reduced performance, or safety hazards. For competitive racing where crashes are part of the sport, hard case batteries offer superior protection and durability compared to soft case alternatives.
• Is this suitable for beginners? — This is a racing-grade battery designed for competitive use and experienced RC enthusiasts rather than beginners. Beginners might want to start with a standard 2S LiPo battery with a lower discharge rate and no hard case, as racing batteries require proper care, knowledge of LiPo safety, and compatible charging equipment. Once you understand LiPo battery handling and are ready to race competitively, this is an excellent choice.
• What charger do I need to charge this battery? — You'll need a Traxxas iD-compatible charger that supports 2S LiPo batteries. Traxxas offers several charging solutions specifically designed for their iD batteries, which automatically detect the battery configuration and apply the correct charge parameters. Using a Traxxas iD charger ensures safety and optimal battery performance.

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 5200mAh 7.4v 2-cell 35C LiPo Battery TRX2844R 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.