Radient LiPo 3S 4000mAh 11.1V 50C XT60 RDNB40003S50XT60

Overview

The Radient LiPo 3S 4000mAh 11.1V 50C XT60 (RDNB40003S50XT60) is a compact, high-output 3-cell lithium polymer battery designed to deliver reliable, consistent power for a wide range of RC vehicles and systems. Whether you're piloting an RC car UK, exploring off-road trails, or fine-tuning a brushless RC setup, this 3S LiPo pack provides the energy density and discharge capability needed for demanding RC applications. With its slim footprint measuring just 27mm in height, this battery slots effortlessly into space-limited battery bays found on modern RC platforms, making it an ideal choice for racers, hobbyists and enthusiasts who demand both performance and practicality.

Radient has engineered this 4000mAh capacity pack with a 50C continuous discharge rating, ensuring strong, consistent power delivery throughout your running sessions. The XT60 connector is an industry-standard interface recognised across countless ready-to-run RC models and custom builds, simplifying installation and compatibility with existing systems. This battery represents outstanding value for money, combining genuine performance credentials with the compact dimensions that modern RC design demands. Whether you're upgrading an existing ready to run RC or integrating this pack into a purpose-built racing platform, the Radient 3S 4000mAh 11.1V 50C battery delivers the specifications and reliability that serious RC enthusiasts expect.

Suitable for operators aged 14 and above, this LiPo pack is backed by the expertise of RC Model Shop, a trusted UK RC retailer with physical store locations and genuine authorised products. The battery arrives in a protective soft case and ships same-day from UK stock when ordered before 5pm, ensuring you can get back to racing or bashing without unnecessary delays.

Key Features

• 11.1V 3S Nominal Voltage — Three cells connected in series deliver a nominal voltage of 11.1 volts, with a fully charged voltage of 12.6V and minimum safe discharge voltage of 9V. This voltage is compatible with dedicated 3S RC systems and provides the electrical characteristics needed for balanced performance across brushless motors, ESCs and electronic speed controllers rated for 3S LiPo batteries.
• 4000mAh Capacity — The 4000 milliamp-hour capacity provides substantial runtime for typical RC applications, allowing extended running sessions before requiring a recharge. Larger capacity packs deliver longer flight times for RC aircraft or more laps during track racing before needing a battery swap.
• 50C Discharge Rating — The 50C continuous discharge rating means this battery can safely deliver 200 amps of continuous current (50 × 4Ah = 200A). This high discharge capability ensures the pack won't become a performance bottleneck even with high-powered brushless motors or multiple high-current devices drawing power simultaneously, maintaining voltage stability under load.
• XT60 Connector — The XT60 connector is the industry-standard interface found on thousands of RC vehicles, ESCs, and chargers across the UK RC hobby market. This gold-plated connector ensures reliable electrical contact, reduces voltage drop, and simplifies hot-swapping between compatible systems without the need for adapters.
• Compact Slim Profile — Measuring just 27mm in height, 44mm in width, and 135mm in length, this battery is engineered for space-constrained installations. The slim footprint fits neatly into dedicated battery compartments on modern chassis designs, improving weight distribution and allowing builders to maximise interior volume for other components.
• Soft Case Protection — The battery arrives in a protective soft case that provides essential protection during storage, transport and handling. The case safeguards the pack from accidental damage, dust ingestion, and external impacts whilst remaining lightweight enough not to significantly increase overall system weight.
• Age 14+ Recommended — This product is suitable for young people aged 14 and above, making it appropriate for teenagers and adults who understand proper LiPo battery handling, storage and safety procedures essential for safe RC operation.

Technical Performance

This Radient LiPo battery represents a carefully engineered balance between power delivery, capacity and physical dimensions. The 50C discharge rating is a critical performance metric: it quantifies the maximum continuous current the pack can supply without thermal stress or voltage sag. For a 4000mAh pack, a 50C rating translates to a continuous current limit of 200 amps, which comfortably supports high-powered brushless motors spinning at 3500-5000KV and above. The 11.1V nominal output is the standard voltage across 3S platforms, providing clean electrical characteristics that ESC firmware and motor controllers expect. Construction employs soft-case housing which balances weight savings with physical protection—critical for RC applications where grams matter but durability is non-negotiable. The XT60 connector is gold-plated to resist corrosion and maintain low resistance, essential for minimising voltage drop across the connector interface during peak current draw. Total shipping weight is approximately 0.34kg, making this a relatively lightweight power solution suitable for applications where total system mass impacts acceleration, handling and battery runtime. The 4000mAh capacity sits in the sweet spot for 3S racing platforms: sufficient for extended track sessions or trail runs without excessive weight penalty. Quality control is evidenced by the manufacturer's track record within the RC community, and the battery arrives ready for immediate use with any compatible 3S-rated charger and electrical system.

What's in the Box

• Radient LiPo 3S 4000mAh 11.1V 50C battery pack with XT60 connector
• Protective soft case for storage and transport

What You Need to Complete

• LiPo battery charger rated for 3S lithium polymer packs (not included)
• RC vehicle, aircraft or device with XT60 connector and 3S-compatible electronics (not included)
• Balancing charger recommended for optimal cell health and longevity
• Battery monitoring equipment such as a cell voltage checker (optional but recommended)

Frequently Asked Questions

• Is the Radient 3S 4000mAh LiPo suitable for beginners in RC? — This battery is recommended for operators aged 14 and above with basic understanding of LiPo safety procedures. Beginners should ensure they have access to a proper LiPo charger, understand safe storage practices, and have read the manufacturer's safety guidelines. The XT60 connector is industry-standard and compatible with most ready-to-run RC models, making installation straightforward once you're familiar with basic battery handling.
• What RC vehicles can I use this battery with? — This 3S LiPo pack is compatible with any RC car, truck, buggy, crawler, aircraft or other system designed for 3S (11.1V) operation with an XT60 connector. Common applications include 1/10 scale brushless RC cars, ready-to-run RC trucks, racing buggies, and various RC helicopters and quadcopters rated for 3S power.
• How long will this battery last per charge? — Runtime depends entirely on your specific RC vehicle, motor power rating, driving style and terrain. As a general guide, a 4000mAh capacity pack discharged at a moderate 50A rate would provide approximately 4.8 minutes of runtime before depleting to minimum safe voltage. High-powered racing applications may discharge faster, whilst lighter vehicles or more efficient motors may achieve longer runtimes.
• What charger do I need for this battery? — You'll need a charger rated for 3S lithium polymer batteries with XT60 connector compatibility. A balancing charger is recommended to maintain individual cell voltage balance, which extends battery lifespan and ensures safe operation. Charge rate should not exceed the battery's safe charging rate; typically 1C charge rate (4 amps for a 4000mAh pack) is considered standard, though higher rates are possible with compatible chargers.
• What does the 50C discharge rating mean? — The 50C rating indicates this battery can safely deliver 200 amps of continuous current (50 multiplied by 4Ah capacity). This ensures the pack won't limit power delivery to high-performance brushless motors and electronic speed controllers. Higher C ratings provide greater current capacity without generating excessive heat or voltage sag, maintaining consistent power throughout your running session.
• How should I store this battery? — LiPo batteries should be stored in a cool, dry location at room temperature with charge levels around 3.7V per cell (approximately 50% charge for a 3S pack). Store in the protective soft case provided to prevent physical damage. Never store in direct sunlight, near heat sources, or in extremely cold conditions. For extended storage, check voltage monthly and top up charge as needed.
• Is this battery waterproof? — No, this is a standard LiPo battery pack and is not waterproof. The electronics and cells must not be submerged or exposed to moisture, which could damage internal components and create safety hazards. If your RC vehicle will be used in wet conditions, you'll need a waterproof battery enclosure or case designed for your specific chassis.

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 4000mAh 11.1V 50C XT60 RDNB40003S50XT60 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.