Traxxas LiPo 4S 6700mAh 14.8V 25C iD Power Cell Battery TRX2890X

Overview

The Traxxas LiPo 4S 6700mAh 14.8V 25C iD Power Cell Battery TRX2890X represents the pinnacle of battery technology for high-performance RC cars and trucks in the UK. Traxxas has taken battery power to the next level with this new 4-cell LiPo battery, specifically engineered to deliver exceptional performance for the most demanding X-Series vehicles. Whether you're piloting an X-Maxx, Sledge, WideMaxx, XRT, or Maxx Slash brushless RC truck, this battery provides the power, performance, and runtime worthy of these elite machines. The 6700mAh capacity combined with a 50C burst discharge rate ensures that you'll experience maximum acceleration and sustained performance when you grab the throttle of your ready to run RC truck or truggy.

This 4-cell LiPo battery is ideal for serious RC enthusiasts and competitive drivers who demand the best from their equipment. If you're running a brushless electric RC vehicle and want to unlock its full potential, this Traxxas battery delivers over 30-volts in 8S configuration, meaning it will literally stand your truck on its wheelie bar and have it catching massive air as fast as you can grab the throttle. The semi-rigid construction means efficient packaging whilst maintaining durability through countless bashing sessions and competitive races. Built using the same proven, sturdy construction methods as the Traxxas 2-cell and 3-cell batteries, this power cell is engineered to withstand the demands of serious RC driving.

What sets this battery apart is Traxxas' exclusive iD battery system—the easier and safer way to charge your Traxxas batteries. Only Traxxas gives you more of what you want most: simple installation, a great price, and the most speed and runtime available. This battery represents everything RC Model Shop customers expect: genuine Traxxas quality, authorised dealer pricing, and products that deliver real performance improvements to your RC experience.

Key Features

• 6700mAh Capacity — This substantial energy storage delivers extended runtime on a single charge, meaning longer sessions on the track or field without needing to swap batteries as frequently. More capacity translates directly to more fun and more opportunities to refine your driving technique.
• 4-Cell LiPo Configuration (14.8V) — The 4-cell design provides the optimal voltage sweet spot for high-performance brushless electric RC vehicles, delivering both raw power and efficiency. This voltage is specifically matched to X-Series trucks and similar high-end RC vehicles for maximum compatibility and performance.
• 50C Burst Discharge Rate — This extremely high burst rate means the battery can deliver massive current spikes when you need them most, such as during hard acceleration or climbing steep terrain. The burst rating ensures your RC truck or truggy has instant throttle response and genuine speed.
• Traxxas iD Connector System — The exclusive iD connection system makes charging simpler and safer than ever before. This proprietary connector ensures proper polarity and secure connections, eliminating the risk of incorrect battery installation. It's the easier way to keep your battery charged and ready to go.
• Traxxas High-Current Connectors — Specially engineered connectors minimise voltage drop and resistance, ensuring maximum power delivery from the battery to your ESC and motor. These premium connectors are built to handle the demanding current draws of high-performance brushless systems.
• Integrated LiPo Balance Charging Wires — The built-in balance connector allows your Traxxas iD charger to monitor and balance individual cell voltages during charging, extending battery life and ensuring optimal performance. This intelligent charging approach keeps your battery in peak condition for hundreds of charge cycles.
• Semi-Rigid Construction — The semi-rigid design provides efficient packaging whilst maintaining structural integrity during hard driving. This construction method allows the battery to fit securely in your RC vehicle whilst absorbing the vibrations and impacts of aggressive driving.
• Oversized Discharge Tabs — Extra-large discharge tabs minimise internal resistance and heat generation during discharge, keeping the battery cooler and delivering more consistent power throughout your driving session. Lower resistance means better performance and longer lifespan.
• Hard-wired 12-gauge Maxx Cable — The robust 12-gauge cable soldered directly to the cells provides a superior connection compared to standard batteries. This heavy-gauge wire ensures minimal voltage drop during high-current discharge, delivering every amp of power to your vehicle.
• Centre Wire Exit — The thoughtfully positioned centre wire exit guarantees proper fitment in your RC vehicle's battery compartment, eliminating frustration during battery installation and ensuring consistent positioning for optimal weight distribution.

Technical Performance

This Traxxas LiPo battery represents cutting-edge battery engineering optimised for the most demanding RC applications. The 6700mAh capacity at 14.8V (4-cell/4S configuration) delivers exceptional runtime whilst maintaining the voltage stability required by brushless ESCs and high-performance motors. The 50C burst discharge rate is particularly impressive, allowing this battery to supply the massive current draws demanded by high-KV brushless motors when you're pushing your RC truck or short course truck to the limit. The stick battery configuration with dimensions of 178mm length, 44mm width, and 50.5mm height fits securely in the battery compartments of Traxxas X-Series vehicles including the X-Maxx, Sledge, WideMaxx, XRT, and Maxx Slash. The semi-rigid construction balances the need for efficient packaging with durability, ensuring the battery withstands the vibrations, impacts, and temperature variations encountered during serious RC driving. The use of high-current connectors, oversized discharge tabs, and hard-wired 12-gauge cables throughout the battery's design ensures that internal resistance is minimised, meaning more of the battery's stored energy reaches your vehicle's drivetrain rather than being wasted as heat. Materials and construction are premium throughout—this is not a budget battery but rather a performance component designed for drivers who demand the best from their RC vehicles and refuse to compromise on power delivery or reliability.

What's in the Box

• Traxxas LiPo 4S 6700mAh 14.8V 25C iD Power Cell Battery (TRX2890X)
• Integrated balance charging connector wires

What You Need to Complete

• Traxxas iD Charger (sold separately) — Required to safely charge this battery using the iD charging system
• Compatible X-Series Traxxas RC vehicle such as X-Maxx, Sledge, WideMaxx, XRT, or Maxx Slash
• LiPo battery storage and charging safety bag (highly recommended for safe storage and charging)

Frequently Asked Questions

• What Traxxas RC vehicles are compatible with the TRX2890X battery? — This battery is designed specifically for Traxxas X-Series vehicles with iD connectors. Compatible models include the Traxxas X-Maxx (all variants), Traxxas Sledge, Traxxas WideMaxx, Traxxas XRT, Traxxas Maxx Slash, and X-Monster chassis. Always verify your vehicle features the iD connector system before purchasing.
• What is the difference between the 25C continuous rating and 50C burst rating? — The 25C continuous discharge rate represents the safe sustained current the battery can deliver without overheating, suitable for normal driving conditions. The 50C burst rate is a short-term maximum allowing brief periods of extremely high current delivery, such as during hard acceleration or climbing steep terrain. The burst rating is what gives your RC truck the instant throttle response and raw speed you feel during aggressive driving.
• Is this battery suitable for beginners with RC cars and trucks? — This is a premium battery designed for experienced RC enthusiasts rather than beginners. The 6700mAh capacity and 50C discharge rate are optimised for high-performance brushless vehicles. Beginners with simpler, smaller RC cars should consider lower-capacity LiPo batteries. However, if you own an X-Maxx or similar X-Series truck and are ready to experience maximum performance, this battery is an excellent investment.
• How long does the battery last on a single charge? — Runtime depends on your vehicle, driving style, and terrain. The 6700mAh capacity at 25C continuous discharge provides extended runtime compared to smaller batteries, allowing longer sessions before needing to recharge. Aggressive driving with frequent acceleration reduces runtime compared to steady cruising.
• What charger do I need to use with this battery? — This battery is equipped with the Traxxas iD connector system and requires a compatible Traxxas iD Charger for charging. The iD system ensures safe, proper charging with automatic monitoring of individual cell voltages. Using only Traxxas iD chargers protects your battery investment and extends battery lifespan.
• Why is this battery better than similar 4-cell LiPo batteries from other brands? — Traxxas batteries are specifically engineered for Traxxas vehicles with integrated engineering, connectors, and charging systems optimised for compatibility and performance. The exclusive iD system provides safer charging with built-in cell balancing. The use of high-current connectors, oversized discharge tabs, and hard-wired 12-gauge cables ensures minimal internal resistance compared to budget alternatives. Most importantly, this battery is engineered to deliver the full potential of Traxxas brushless motors and ESCs.
• Can I use this battery in 8S configuration? — Yes, this 4-cell battery can be used in 8S configuration (two batteries in series) on compatible vehicles such as the X-Maxx in dual-battery mode, delivering over 30-volts and producing the extreme performance that makes your truck stand on its wheelie bar and catch massive air.
• How do I store this battery safely? — LiPo batteries require careful storage in a cool, dry location away from flammable materials. Always store the battery at a moderate charge level (approximately 50%) rather than fully charged or fully depleted. We strongly recommend storing the battery in a dedicated LiPo battery safety sack to contain potential fires. Never leave a charging battery unattended.

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 4S 6700mAh 14.8V 25C iD Power Cell Battery TRX2890X 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.