RDNB30003S50EC3

Overview

The Radient LiPo 3S 3000mAh 11.1V 50C EC3 (part number RDNB30003S50EC3) is a compact and reliable lithium polymer battery pack designed for RC enthusiasts across the UK who demand consistent performance and dependable power delivery. This 3-cell LiPo pack delivers a nominal voltage of 11.1V with a substantial 3000mAh capacity, providing an excellent balance between runtime and punch that suits a wide range of RC applications. Whether you're piloting an RC car UK, flying an RC quadcopter, or operating any other EC3-equipped RC model, this Radient battery offers the performance characteristics needed for both recreational flying and competitive use.

Featuring a robust 50C discharge rating, this battery pack is engineered to deliver rapid current output without sacrificing longevity or safety. The slim 19mm profile helps with placement in tighter battery compartments whilst maintaining solid performance across diverse RC platforms. Recommended for users aged 14 and above, this Radient LiPo pack combines practical usability with professional-grade reliability, making it an excellent choice for anyone looking to upgrade their ready to run RC model or expand their battery collection. The EC3 connector standard ensures straightforward installation and compatibility with a huge range of RC vehicles currently available in the UK market.

At just 0.28kg shipping weight with compact dimensions of 135mm length, 44mm width, and 19mm height, this battery is designed for easy transport and storage. The soft case construction protects your investment while keeping weight to a minimum—crucial factors when you're optimising your RC setup for maximum performance and efficiency.

Key Features

• 3S LiPo Configuration (11.1V) — This three-cell lithium polymer design delivers the perfect voltage for mid-range RC applications, providing sufficient power for electric RC cars, drones, and helicopters without the weight penalty of higher cell counts. The 11.1V nominal output is widely recognised as the sweet spot for balanced performance in most ready to run RC models.
• 3000mAh Capacity — The 3000mAh rating delivers meaningful runtime across extended sessions, allowing you to enjoy extended driving or flying periods before requiring a recharge. This capacity level is ideal for RC enthusiasts who want reasonable flight or run times without excessive battery weight.
• 50C Discharge Rating — This high discharge rate means the battery can safely deliver up to 150 amps of continuous current (50C × 3Ah), enabling aggressive acceleration and sustained high-performance driving. The 50C rating indicates this is a genuine performance battery suitable for sporty driving styles and competitive RC applications, not a budget compromise.
• EC3 Connector — The EC3 connector is one of the most widely used battery connectors in the RC hobby industry across the UK, ensuring compatibility with countless RC vehicles, ESCs, and balance chargers. This connector standard makes it easy to integrate this battery into existing setups or swap between multiple RC models.
• Compact Soft Case Design — The protective soft case provides essential protection for your investment during transport and storage, whilst keeping overall weight minimal. The case design allows for easy insertion into tight battery compartments without requiring modification or custom fitting.
• Slim 19mm Profile — At just 19mm thick, this battery pack fits comfortably into battery compartments designed for slimline packs, giving you flexibility in vehicle selection and setup options across different RC platforms.
• Radient Quality and Reliability — Radient is a recognised manufacturer of quality lithium polymer batteries used by RC hobbyists throughout the UK. Their commitment to consistent performance and safety makes this a trusted choice for anyone serious about their RC hobby.

Technical Performance

The Radient LiPo 3S 3000mAh 11.1V 50C battery represents a well-engineered balance between performance and practicality. The 50C continuous discharge rating ensures this pack can handle the demands of high-performance brushless motor systems commonly found in modern RC cars UK models and electric RC aircraft. Built with quality lithium polymer cell chemistry, this battery delivers consistent voltage throughout the discharge cycle, meaning your RC model will maintain responsive handling and power delivery right up until the battery requires recharging. The 135mm × 44mm × 19mm dimensions and 0.28kg weight make this an excellent choice for mid-sized RC vehicles where weight distribution matters—every gram counts when you're optimising your RC setup for speed, agility, and control. The EC3 connector provides reliable electrical contact with minimal voltage drop, ensuring maximum power reaches your motor or flight controller. Whether you're running a brushless ESC in your RC buggy, truck, or electric-powered RC helicopter, this 11.1V pack delivers the electrical characteristics needed for dependable performance across extended use cycles. The soft case construction protects internal cell structure whilst the overall engineering reflects Radient's understanding of what UK RC enthusiasts demand from modern battery technology.

What's in the Box

• 1 × Radient LiPo 3S 3000mAh 11.1V 50C Battery Pack with EC3 Connector
• Protective Soft Case

Frequently Asked Questions

• Will this battery work with my RC car or RC model? — This battery features an EC3 connector, which is one of the most widely used connector types in the RC hobby. Check your vehicle's battery compartment or your ESC connector type. If your RC car, truck, buggy, or helicopter uses an EC3 connector and accepts 3S LiPo batteries with 11.1V nominal voltage, this Radient pack will work perfectly. Many popular ready to run RC models from leading brands support EC3 connectivity.
• Is this battery suitable for beginners and experienced RC enthusiasts? — Yes, this battery suits both beginners aged 14+ and experienced hobbyists. The 3000mAh capacity provides reasonable runtime for learning, whilst the 50C discharge rating delivers enough performance for sporty driving. Beginners should ensure they have a suitable LiPo charger and understand basic LiPo battery safety protocols before use.
• How long will this battery last per charge? — Runtime depends on your specific RC model, motor, driving style, and terrain. Generally, a 3000mAh battery in a mid-sized RC car provides 15-30 minutes of active use, whilst in lightweight RC aircraft it may provide 20-40 minutes depending on power demands. More aggressive driving or flying reduces runtime, whilst gentle use extends it.
• What charger do I need for this battery? — You'll need a LiPo-compatible battery charger that supports 3S charging with EC3 connectors. Most modern RC battery chargers sold in the UK support EC3 and 3S LiPo charging. Balance chargers are recommended to maintain cell health and longevity. Many chargers sold at RC Model Shop are compatible with this battery.
• How often can I recharge this battery? — Lithium polymer batteries like this Radient pack typically support 200-500 full charge cycles depending on charging habits, discharge depth, and storage conditions. Proper care—avoiding over-discharging, using a balance charger, and storing at appropriate charge levels—extends battery lifespan significantly.
• Is this battery waterproof? — No, this is a standard lithium polymer battery pack not specifically designed for waterproof operation. Protect it from water exposure, condensation, and moisture to maintain performance and safety. If your RC model will be used around water, keep the battery compartment sealed and inspect the battery regularly.
• How should I store this battery? — Store your Radient LiPo battery in a cool, dry location at approximately 3.85V per cell (around 11.55V total for a 3S pack) if you won't be using it for extended periods. Avoid storing fully charged or fully depleted. Use a fireproof LiPo storage bag for added safety. Check the battery regularly during storage to ensure it hasn't swollen or developed faults.
• What's the difference between 50C and lower C-ratings? — The 50C rating means this battery can continuously discharge at 50 times its capacity (150 amps). Higher C-ratings support faster acceleration and higher sustained power output, making this 50C pack suitable for performance-oriented driving. Lower C-rated batteries (20C, 30C) deliver less peak power and suit gentler, longer-duration use.

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 3S 3000mAh 11.1V 50C EC3 RDNB30003S50EC3 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.