RDNB37003S30EC3

Overview

The Radient LiPo 3S 3700mAh 11.1V 30C EC3 battery pack (RDNB37003S30EC3) is a compact and reliable power solution designed for RC enthusiasts across the UK who demand consistent performance from their electric RC models. Whether you're piloting a fast RC car UK, flying a racing drone, or powering up your favourite RC helicopter, this 3-cell lithium polymer battery delivers the balance between punch and runtime that serious RC hobbyists demand. With a 3700mAh capacity paired with a 30C discharge rating, this pack is engineered to provide dependable power delivery in a space-efficient form factor that fits neatly into modern RC vehicle designs.

This is an ideal upgrade battery for owners of electric RC buggies, RC stadium trucks, RC short-course trucks, and ready to run RC models that utilise 3S LiPo power systems. The EC3 connector ensures secure, reliable connections to your ESC and charger, whilst the soft case construction protects the cells during transport and storage. Radient batteries are recognised for their consistent quality and value for money, making them a trusted choice amongst weekend bashers and experienced RC competitors alike. At just 24mm in height, 44mm in width and 135mm in length, this battery maximises available space in your model whilst delivering the energy you need for extended runtime and responsive throttle control.

Available now at RC Model Shop, the Radient 3S LiPo battery is ready to power your next RC adventure. Whether you're chasing lap times at your local RC track, bashing through off-road terrain, or enjoying casual outdoor play, this battery provides the reliable energy source that RC enthusiasts depend on. At the current clearance price of £24.49, it represents exceptional value for a quality LiPo battery with proven performance credentials.

Key Features

• 3S 11.1V Configuration — This three-cell lithium polymer pack delivers the standard 11.1 volts that modern electric RC vehicles are designed for, providing the optimal voltage curve for brushless motors, brushed motors, and speed controllers used in contemporary RC models.
• 3700mAh Capacity — The 3700mAh energy capacity ensures you get meaningful runtime from your RC car, RC truck, or RC aircraft without the need for constant recharging between sessions, making it ideal for both casual play and competitive racing.
• 30C Discharge Rating — The 30C continuous discharge rate means this battery can safely deliver 111 amps of continuous current, providing enough punch for high-performance electric RC vehicles whilst maintaining cell stability and longevity across hundreds of charge cycles.
• EC3 Connector — The gold-plated EC3 connector offers a secure, reliable connection to your ESC and charger, reducing contact resistance and ensuring consistent power delivery without the risk of disconnection during aggressive driving or racing.
• Compact Soft Case Design — The protective soft case construction keeps your battery safe from physical damage, short circuits, and environmental hazards during transport and storage, extending the lifespan of your investment in this power system.
• Space-Efficient Form Factor — With dimensions of 135mm length, 44mm width, and 24mm height, this battery fits into the tight battery compartments of modern low-profile RC chassis designs, from compact RC buggies to 1/10 scale RC stadium trucks and short-course racing platforms.
• Age 14+ Recommendation — Designed with safety in mind, Radient recommends this battery for users aged 14 and above, reflecting the responsibility required when handling lithium polymer batteries and operating RC vehicles at speed.

Technical Performance

The Radient LiPo 3S 3700mAh 11.1V 30C battery represents a carefully engineered balance between energy density, discharge capability, and practical usability for the UK RC market. The 30C discharge rating is derived from multiplying the battery capacity (3700mAh = 3.7Ah) by the discharge multiplier (30C), yielding a maximum safe continuous discharge of 111 amps. This specification makes the battery suitable for high-performance electric RC vehicles including brushless-powered RC buggies, RC short-course trucks, and competition-grade RC platforms that demand responsive throttle control and sustained power delivery under load. The 11.1V nominal voltage (fully charged at approximately 12.6V and depleted at 9V) is the industry standard for 3S applications, ensuring compatibility with the vast majority of 3S-rated ESCs, brushless motors, and LiPo chargers available in the UK market. Built with quality lithium polymer cells encased in a protective soft case, the battery weighs just 0.30kg, keeping your RC model's weight distribution optimal for handling and performance. The EC3 connector utilises gold-plated contacts to minimise voltage drop and heat generation during high current draw, critical when operating at the upper limits of the 30C rating. Whether you're charging via a dedicated LiPo charger or a multi-chemistry RC battery charger, the 3S configuration is universally recognised and supported across professional and consumer-grade charging equipment. For users operating ready to run RC models, competition-grade RC racing platforms, or custom-built electric RC vehicles, this battery provides the reliable, predictable performance needed for consistent lap times, competitive racing, or extended recreational flying and bashing sessions.

What's in the Box

• Radient LiPo 3S 3700mAh 11.1V 30C battery pack with EC3 connector
• Protective soft case

Frequently Asked Questions

• Is the Radient 3S 3700mAh 30C LiPo battery suitable for beginners? — Yes, this battery is suitable for beginners aged 14 and above who are ready to take responsibility for proper LiPo battery handling, charging, and storage. However, beginners should ensure they have a compatible LiPo charger and understand the safety requirements of lithium polymer batteries before use. We recommend reading the manufacturer's safety guidelines and consulting with experienced RC hobbyists if you're new to LiPo batteries.
• What RC vehicles can I power with this 3S LiPo battery? — This battery is ideal for any RC model designed to accept 3S LiPo power, including electric RC buggies, RC stadium trucks, RC short-course trucks, RC crawlers, RC drift cars, and many ready to run RC models. Always check your vehicle's battery compatibility specifications before purchasing, as using an incompatible battery can damage your ESC and motor.
• What charger do I need for this battery? — You'll need a LiPo-compatible charger that supports 3S charging, such as a dedicated LiPo charger or a multi-chemistry RC battery charger with 3S balance charging capabilities. The EC3 connector is widely supported across professional and consumer RC chargers available in the UK market.
• How long will this battery last per charge? — Runtime depends on your vehicle's motor size, ESC settings, driving style, and battery discharge profile. The 3700mAh capacity typically provides 20-40 minutes of active driving time on a 1/10 scale RC vehicle, though this varies significantly based on usage patterns.
• Is this battery safe to use? — Yes, when handled correctly according to manufacturer guidelines. LiPo batteries require proper charging (using a dedicated LiPo charger), storage (in a fireproof container at room temperature), and handling (avoiding physical damage or short circuits). Never overcharge, over-discharge below 3V per cell, or expose to extreme temperatures.
• What does the 30C discharge rating mean? — The 30C rating indicates the battery can safely deliver 30 times its capacity in amps continuously. For this 3.7Ah (3700mAh) battery, that's approximately 111 amps maximum continuous discharge. This specification ensures the battery can supply high-current demands from brushless motors whilst maintaining cell integrity and safety.
• How does this compare to other 3S LiPo batteries? — The Radient 3S 3700mAh 30C offers a balanced combination of capacity and discharge capability at an excellent price point. Compared to entry-level batteries with lower discharge ratings (like 25C), it provides more responsive throttle control. Compared to higher-capacity batteries (like 5000mAh), it's more compact and lightweight, making it ideal for space-constrained RC chassis designs.

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 3700mAh 11.1V 30C EC3 RDNB37003S30EC3 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.