Radient LiPo 6S 4000mAh 22.2V 50C XT90 RDNB40006S50XT90

Overview

The Radient LiPo 6S 4000mAh 22.2V 50C XT90 battery (model RDNB40006S50XT90) is a premium lithium polymer power pack designed for demanding RC applications across the UK and beyond. This 6S LiPo battery delivers consistent 22.2V nominal voltage output, making it an excellent choice for high-performance RC cars, trucks, buggies and other electric-powered models that require robust, reliable energy management. Whether you're piloting a brushless RC buggy, tackling challenging terrain with your RC crawler, or enjoying high-speed runs with your RC car, this battery pack provides the sustained power delivery you need for extended runtime and peak performance.

Built by Radient, a recognised name in the RC hobby world, this 6S LiPo pack balances capacity and compact dimensions perfectly for models where space is at a premium. With its 50C discharge rating, this battery is engineered to handle the demanding power requirements of modern brushless motor systems and racing-spec ESCs, delivering explosive acceleration and sustained high-drain performance during competitive runs or casual weekend bashing sessions. The 4000mAh capacity offers a practical sweet spot between weight and runtime, allowing you to enjoy extended play sessions without the bulk of larger capacity packs.

The XT90 connector is the industry-standard connector choice for serious RC enthusiasts in the UK, preferred for its robust build quality and secure connection reliability during high-stress racing and performance driving. Recommended for ages 14 and upwards, this professional-grade battery is suitable for experienced RC hobbyists who understand LiPo battery safety protocols and proper charging procedures.

Key Features

• 6S Lithium Polymer Chemistry — The six-cell configuration delivers 22.2V nominal voltage, which is the standard power level for high-performance electric RC applications, providing optimal voltage for brushless motors and modern electronic speed controllers designed for 6S operation.
• 4000mAh Capacity — This mid-range capacity offers an ideal balance between weight savings and extended runtime, allowing you to enjoy substantial run times without adding unnecessary bulk to your RC model, which is critical when maintaining proper weight distribution and handling characteristics.
• 50C Continuous Discharge Rating — The 50C rating means this battery can safely deliver 200 amps of continuous current (4000mAh × 50C = 200A), making it suitable for high-torque brushless motors and powerful ESC systems that demand significant sustained power, essential for racing applications and aggressive driving styles.
• XT90 Connector — This gold-plated connector is widely recognised across the RC hobby in the UK as the premium choice for high-current applications, offering superior electrical conductivity, secure connection with minimal voltage drop, and enhanced safety features compared to older connector standards.
• Compact Form Factor — Measuring just 135 x 42 x 45mm, this battery fits comfortably into space-constrained RC models whilst maintaining substantial capacity, allowing manufacturers to design sleeker profiles and better weight distribution without sacrificing power output.
• Soft Case Construction — The protective soft case safeguards the battery cells during transport, storage and casual handling, preventing physical damage whilst remaining lightweight and flexible to accommodate the varied shapes of different RC chassis designs.
• Professional-Grade Build Quality — Radient batteries are manufactured to exacting standards with consistent cell matching and internal balance circuits to ensure safe operation, longevity and predictable performance across multiple charge cycles.

Technical Performance

The Radient LiPo 6S 4000mAh 22.2V 50C XT90 battery is engineered for serious RC performance enthusiasts who demand reliability and consistency. The 50C discharge rating provides genuine sustained current delivery capacity, meaning this battery can power high-KV brushless motors commonly found in competitive 1/10 and 1/8 scale RC buggies, truggy trucks, and stadium trucks without voltage sag during demanding acceleration or climbing situations. The 22.2V nominal voltage is the standard specification for 6S applications, providing the optimal voltage window for ESC performance and motor efficiency across the RPM range. With 4000mAh capacity, users can expect approximately 10-15 minutes of continuous high-performance driving under typical racing conditions, depending on terrain, driving style and specific motor and ESC configuration. The XT90 connector minimises resistance losses compared to older connector systems, preserving battery voltage and maximising energy transfer to the motor during critical acceleration phases. The soft case protects the six individual cells from physical damage whilst allowing efficient heat dissipation during high-drain operations. Radient's quality control ensures consistent cell voltage matching across the pack, maintaining balanced discharge characteristics and extending overall battery lifespan through multiple charging cycles. This battery is suitable for use with any brushless ESC rated for 6S LiPo operation, making it compatible with virtually all modern high-performance RC applications across the UK market.

What's in the Box

• Radient LiPo 6S 4000mAh 22.2V 50C XT90 battery pack with protective soft case
• Ready to use — no assembly required

What You Need to Complete

• Compatible RC model with XT90 connector socket and 6S LiPo compatibility
• LiPo charger capable of 6S battery charging (balance charger recommended for optimal cell maintenance)
• XT90 connector cables or adapters if your model uses a different connector system
• Battery care and storage equipment including a fireproof LiPo storage bag for safety

Frequently Asked Questions

• What does the 50C discharge rating mean and why is it important? — The 50C rating indicates the battery can safely deliver 50 times its capacity in amps continuously. With a 4000mAh capacity, this means 200 amps of sustained current (4.0Ah × 50 = 200A). This high discharge rating is essential for brushless RC motors that draw significant current during acceleration and high-speed running, ensuring the battery can supply power without voltage sag that would reduce performance and motor responsiveness.
• Is this battery suitable for beginners or do I need RC experience? — This battery is recommended for ages 14 and upwards, and it is intended for users with RC experience and understanding of LiPo battery safety. LiPo batteries require proper charging with a compatible balance charger, careful storage in fireproof containers, and knowledge of safe handling practices. Beginners to the RC hobby should seek guidance from experienced RC enthusiasts or staff at RC Model Shop before using 6S LiPo batteries, as improper handling can result in battery damage, performance issues or safety concerns.
• What RC models are compatible with the Radient 6S 4000mAh 22.2V battery? — This battery is suitable for any RC model designed to accept a 6S LiPo battery with an XT90 connector. Common applications include high-performance 1/10 scale electric RC buggies, truggy trucks, stadium trucks, and specialist off-road RC vehicles. Always verify that your specific RC model is rated for 6S LiPo operation and uses an XT90 connector, or has provision for connector adapters. Check your RC model's documentation or contact RC Model Shop for compatibility confirmation.
• How long will this battery last during a typical RC driving session? — Runtime depends on several factors including your specific RC model, motor KV rating, ESC throttle settings, driving style and terrain. Generally, a 4000mAh battery in high-performance applications provides approximately 10-15 minutes of continuous driving under racing conditions. For extended play sessions, purchasing multiple fully-charged batteries allows you to rotate packs and maximise total playing time throughout the day.
• What charger do I need for this 6S battery? — You need a LiPo charger capable of handling 6S batteries with a nominal voltage of 22.2V. A balance charger is highly recommended, as it monitors individual cell voltage during charging and ensures all six cells charge evenly, maximising battery lifespan and safety. Many popular RC chargers from brands available at RC Model Shop support 6S charging. Verify your charger specifications before use.
• How should I store this battery between charging sessions? — LiPo batteries should be stored in a cool, dry location in a fireproof LiPo storage bag for safety. If storing for extended periods (more than a few weeks), charge the battery to approximately 50% capacity before storage. Never store fully charged or fully depleted LiPo batteries for extended periods. Always keep LiPo batteries away from moisture, extreme temperatures and direct sunlight.
• What is the difference between the XT90 connector and other battery connectors? — The XT90 connector features gold-plated contacts that minimise electrical resistance compared to older connector standards like XT60, reducing voltage drop during high-current discharge and maximising power delivery to your motor and ESC. XT90 connectors also include safety features such as spark-prevention mechanisms that protect against accidental short circuits. If your RC model uses a different connector, you will need an XT90 adapter cable for compatibility.
• Is this battery waterproof for wet terrain RC driving? — The Radient LiPo battery itself is not waterproof and should not be immersed in water or exposed to significant moisture. However, the soft case provides basic protection against incidental splashes. If you regularly use your RC model in wet conditions, ensure the battery is mounted securely away from water ingress points and dry the battery thoroughly after each session. Moisture exposure can damage cells and create safety hazards.

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 Radient LiPo 6S 4000mAh 22.2V 50C XT90 RDNB40006S50XT90 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.