Traxxas LiPo 4S 5000mAh 14.8V 25C iD Power Cell Battery TRX2889X

Overview

The Traxxas LiPo 4S 5000mAh 14.8V 25C iD Power Cell Battery TRX2889X is a premium lithium polymer power pack engineered specifically for high-performance RC models. This Traxxas certified battery delivers exceptional on-demand power and runtime to unlock the full potential of compatible Traxxas vehicles, from the mighty X-Maxx 8S monster truck to the lightning-quick Maxx Slash and the pro-scale Unlimited Desert Racer. Whether you're a seasoned RC enthusiast running competitive events or a weekend basher looking to maximise your hobby time, this 4-cell LiPo battery provides the reliability, consistency and performance punch that Traxxas models demand.

Traxxas Certified iD-Equipped LiPo batteries are engineered to provide the punch and on-demand power for reaching the top speeds that Traxxas models are built to achieve. Traxxas Power Cell iD-Equipped LiPo batteries are engineered specifically to fit Traxxas models and maximise their full performance potential. Only Traxxas gives you more of what you want most: simple installation, a great price, and the most speed and run time available. The stick configuration and compact 155mm length make this battery ideal for models with restricted battery bays, whilst the robust 5000mAh capacity ensures extended runtime between charges. When shopping for RC batteries UK retailers, choosing a Traxxas certified power pack guarantees compatibility and performance you can trust.

This is a ready-to-use power pack that requires no additional assembly or configuration—simply charge and install. The iD connector technology provides safe, foolproof connections that prevent incorrect installation and potential damage to your RC vehicle. Whether you operate a single high-performance RC model or maintain a fleet of brushless RC vehicles, the Traxxas 5000mAh 4S LiPo is an essential addition to your battery collection, offering dependable performance lap after lap, run after run.

Key Features

• Traxxas Certified iD Connector — The proprietary iD connector system ensures safe, correct installation every time and provides secure connections that cannot be reversed or incorrectly fitted, protecting both your battery and your RC vehicle's electronics from accidental damage.
• 5000mAh Capacity — This generous 5000mAh capacity delivers extended runtime on a single charge, allowing you to maximise your hobby sessions and reduce downtime between charges, which is particularly beneficial for competitive racers and weekend enthusiasts alike.
• 14.8V 4S Configuration — The four-cell lithium polymer configuration delivers 14.8 volts of nominal power, providing the voltage output required by many modern high-performance Traxxas models including the X-Maxx, XRT and Unlimited Desert Racer platforms.
• 25C Discharge Rate — The 25C continuous discharge rating enables the battery to safely deliver high current draw without overheating or voltage sag, making this an excellent choice for powerful brushless motors and demanding driving styles.
• Stick Configuration — The compact stick-style form factor (155 x 34 x 45mm) is engineered to fit snugly into restricted battery bays on Traxxas models, maximising available space whilst maintaining perfect weight distribution and chassis balance.
• Engineered for Traxxas Models — This battery is designed from the ground up to work seamlessly with compatible Traxxas RC vehicles, ensuring optimal voltage delivery, terminal fit and performance characteristics tuned specifically for Traxxas brushless systems and electronic speed controllers.
• High Punch Power Delivery — The combination of 5000mAh capacity and 25C discharge rating provides aggressive throttle response and instant acceleration, critical for competitive racing, high-speed bashing and maintaining top speed across varied terrain.
• Reliable LiPo Technology — Modern lithium polymer construction delivers consistent voltage throughout the discharge cycle, superior performance compared to older nickel-based batteries, and excellent energy density for extended runtime in a compact package.

Technical Performance

The Traxxas LiPo 4S 5000mAh 14.8V 25C battery represents cutting-edge energy storage technology for RC enthusiasts in the United Kingdom seeking maximum performance from their Traxxas fleet. The engineering excellence behind this power pack begins with premium lithium polymer cell construction, which delivers superior voltage stability, reduced internal resistance and significantly longer cycle life compared to conventional nickel-metal hydride (NiMH) alternatives. At 14.8 volts nominal output across four cells, this battery provides the voltage sweet spot for demanding brushless motors and high-powered electronic speed controllers (ESCs) used in contemporary Traxxas models. The 5000mAh capacity ensures extended runtime, allowing serious RC car enthusiasts to enjoy prolonged driving sessions without frequent recharging interruptions—a critical advantage whether you're preparing for competitive circuit racing, bashing across rough terrain, or simply maximising your available hobby time. The 25C continuous discharge rating (125A peak current capability with 5000mAh capacity) guarantees safe, efficient power delivery to demanding brushless systems without thermal stress or performance degradation. The iD connector technology represents Traxxas's commitment to safety and reliability; the proprietary connector system prevents reverse polarity connections and incorrect installation, protecting valuable RC vehicle electronics and eliminating costly repair bills from battery-related errors. Compatible with a comprehensive range of Traxxas models including the Maxx Slash 1/8 4WD 6S brushless short course truck, the Unlimited Desert Racer pro-scale platform, the X-Maxx 8S monster truck in all colour variants, the X-Monster chassis, and the XRT VXL-8S and Ultimate versions, this battery integrates seamlessly into established RC collections. The stick configuration and carefully optimised dimensions (155mm length, 34mm width, 45mm height) ensure perfect fitment in factory battery bays without modification, and the 40-49mm width and 30-39mm height maintain proper weight distribution and centre of gravity. Traxxas batteries are engineered to maintain consistent voltage delivery throughout the discharge cycle, providing reliable power for maximum speed achievement and consistent handling characteristics throughout the entire run—essential for competitive racing where voltage sag can mean the difference between victory and defeat. The robust construction and quality control standards ensure this battery withstands the rigours of serious RC use, including high-drain performance sessions, rapid acceleration demands, and the vibration and impacts inherent in high-speed terrain driving.

What's in the Box

• Traxxas LiPo 4S 5000mAh 14.8V 25C iD Power Cell Battery with integrated iD connector

Frequently Asked Questions

• Which Traxxas models are compatible with the TRX2889X 4S LiPo battery? — This 4S LiPo battery is compatible with numerous Traxxas platforms including the Maxx Slash 1/8 4WD brushless short course truck in all colour variants (Rock N Roll, Blue, Red and Green), the Unlimited Desert Racer (UDR) pro-scale platform in both Fox Racing and Rigid Industries editions, the X-Maxx belted 4WD brushless 8S monster truck in orange, blue, red and green finishes, the X-Maxx Ultimate versions in blue and green, the X-Monster chassis, and the XRT VXL-8S models available in green, black, blue and orange, plus the XRT Ultimate variants. Always confirm your specific model is listed in the compatibility section before purchasing.
• What is the iD connector and why does my Traxxas RC car need it? — The Traxxas iD connector is a proprietary battery connection system that ensures foolproof installation and eliminates the possibility of reverse polarity connections, which could damage your RC vehicle's electronics. The iD system automatically recognises the battery and ensures safe, correct connection every time, making it impossible to accidentally install the battery backwards or connect incompatible power packs, providing critical protection for your investment.
• What does the 25C rating mean and why is it important? — The 25C rating indicates the battery's continuous discharge rate multiplied by the capacity; with a 5000mAh battery, a 25C rating means the battery can safely deliver up to 125 amps of continuous current without overheating or degradation. This high discharge rate is essential for powerful brushless motors and aggressive driving styles, ensuring your RC car maintains peak performance during high-speed runs, rapid acceleration and demanding terrain challenges without voltage sag.
• How long will this battery last on a single charge? — Runtime varies significantly depending on your specific Traxxas model, driving style, motor power, terrain conditions and ESC programming. The 5000mAh capacity provides generous runtime for extended hobby sessions compared to smaller batteries. Running at moderate throttle on smooth terrain typically yields 20-40 minutes of driving time, whilst aggressive high-speed bashing or climbing steep terrain may reduce this to 15-25 minutes. Purchasing multiple batteries ensures you can maintain continuous action throughout your hobby session.
• Is the Traxxas 4S LiPo battery suitable for beginners? — Absolutely. The iD connector system makes installation completely foolproof—simply push the battery into your Traxxas model's battery bay until it clicks securely into place. The 4S configuration is standard across many Traxxas models, making it an ideal entry point into lithium polymer batteries. If you're new to RC hobbies or transitioning from nickel-based batteries, the Traxxas certified power pack offers reliability and safety without the learning curve of universal LiPo connectors.
• Do I need a special charger for this 4S LiPo battery? — Yes, this lithium polymer battery requires a dedicated LiPo-compatible charger capable of handling 4-cell (14.8V) packs. Standard nickel-metal hydride chargers are incompatible and will not charge LiPo batteries correctly. Traxxas offers several approved LiPo chargers that feature iD connector compatibility for automatic battery recognition and optimal charging profiles. Always use a charger specifically designed for lithium polymer batteries to ensure safe charging and maximum battery lifespan.
• How should I store this battery when not in use? — Lithium polymer batteries should be stored in a cool, dry environment at partial charge (approximately 50% capacity) for extended storage periods. Never store a fully charged LiPo battery for weeks or months, as this accelerates degradation and shortens overall lifespan. If storing for longer than a few days, discharge the battery to approximately 50% state of charge using a dedicated storage mode on your LiPo charger, then place it in a fireproof container away from flammable materials.
• What is the difference between this 4S LiPo and other battery options? — The Traxxas 4S LiPo offers several advantages over alternatives: it provides significantly better runtime than smaller capacity batteries, the 25C discharge rate supports aggressive driving and powerful motors without voltage sag, the iD connector ensures foolproof installation unlike universal connectors that risk reverse polarity damage, and the Traxxas certification guarantees perfect fitment in Traxxas models. Compared to older nickel-metal hydride (NiMH) batteries, lithium polymer technology delivers superior power consistency, longer runtime and lighter weight for improved handling characteristics.

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 5000mAh 14.8V 25C iD Power Cell Battery TRX2889X 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.