RDNB22003S50EC3

Overview

The Radient LiPo 3S 2200mAh 11.1V 50C EC3 battery (RDNB22003S50EC3) is a compact and reliable lithium polymer power pack designed for RC enthusiasts across the UK who demand consistent performance from their radio control models. Whether you're piloting an RC car UK, running a brushless RC setup, or powering a variety of mid-sized RC projects, this 3-cell LiPo offers the perfect balance of capacity, discharge rate and practical size for everyday RC use. The pre-fitted EC3 connector ensures straightforward installation and minimal wiring hassle, making it an excellent choice for both experienced RC hobbyists and those new to the world of radio-controlled vehicles.

With a 50C discharge rating and 2200mAh capacity, this battery delivers reliable power delivery across a wide range of RC applications. The 11.1V nominal voltage (3S configuration) makes it compatible with countless RC models, from ready-to-run RC cars to custom-built setups requiring a dependable 3-cell power source. Radient is renowned for producing quality batteries that RC enthusiasts across the UK trust for consistent performance, and this pack is no exception. The compact 106 x 36 x 25mm footprint means it fits neatly into most battery compartments without taking up excessive space, whilst remaining light enough at just 210 grams to avoid adding unnecessary weight to your model.

RC Model Shop stocks this battery in the UK because it represents genuine value for money and reliability. Whether you're a weekend basher, a competitive racer, or simply enjoy running RC models as a hobby, having a quality LiPo battery in your charging station is essential. This Radient pack is built to deliver the performance you need, when you need it, making it a sensible investment for any RC enthusiast looking to expand their battery collection or replace a worn-out pack.

Key Features

• 3-Cell LiPo Chemistry — The 3S configuration delivers an 11.1V nominal voltage, making this battery compatible with thousands of RC car designs, drones, and radio control models available in the UK market. Three-cell LiPo packs are the industry standard for mid-sized RC vehicles, providing the perfect voltage sweet spot for balanced performance.
• 2200mAh Capacity — With 2200 milliamp-hours of stored energy, this battery provides genuine runtime for your RC model without being so large that it compromises weight distribution or fit. This capacity is ideal for 15-30 minute flight or run times depending on your model's power draw and throttle usage.
• 50C Continuous Discharge Rate — The 50C rating means this battery can safely deliver 110 amps continuously (50C × 2.2A = 110A), making it suitable for high-performance RC cars, crawlers, buggies and other models that demand consistent power delivery. This discharge rating ensures the battery won't become a performance bottleneck in your RC setup.
• EC3 Connector Pre-Fitted — The battery arrives with an EC3 connector already soldered on, eliminating the need for connector swaps and streamlining installation into compatible RC models. EC3 connectors are widely used across the RC hobby and provide secure, reliable power transmission with minimal voltage sag.
• Compact Soft Case Design — Measuring just 106 x 36 x 25mm and weighing a mere 210 grams, this battery features a soft case that protects the cells whilst remaining lightweight and flexible. The compact dimensions ensure compatibility with most modern RC car battery boxes and compartments, whilst the soft case allows for slightly tighter fits than rigid hard cases.
• Practical Size for Everyday RC Use — This is not an ultra-high-capacity battery designed for extreme runtime, nor is it a compact pack sacrificing usable capacity. Instead, it represents the goldilocks zone of RC battery design: enough power for real runtime, enough discharge capability for spirited driving, and enough compact size to fit virtually any compatible model.
• Reliable Radient Manufacturing — Radient batteries are built with quality cell selection and reliable manufacturing processes. The brand has earned trust amongst RC enthusiasts throughout the United Kingdom for producing batteries that deliver consistent voltage, reliable discharge characteristics, and long cycle life when properly maintained.

Technical Performance

This Radient LiPo 3S battery is engineered to provide reliable, consistent power delivery across a broad spectrum of RC applications. The 50C discharge rating translates to 110 amps of continuous output capability, positioning this pack as suitable for brushless RC cars, electric RC buggies, RC crawlers, and other mid-to-high-performance models that require sustained power delivery. The 2200mAh capacity ensures genuine usable runtime—typically 15-30 minutes depending on your specific RC model's power consumption and your driving style. Radient uses quality lithium polymer cells selected for consistent performance and cycle life, meaning you can expect this battery to maintain its characteristics across hundreds of charge and discharge cycles when properly cared for. The soft case construction protects the internal cells from mechanical damage whilst remaining flexible enough to fit snugly into battery compartments. The EC3 connector is a proven design standard in the RC hobby, offering low-resistance power transmission that minimises voltage sag during high-demand acceleration or power bursts. Whether you're running a brushless motor rated for 3S LiPo power or a brushed electric motor system, this battery bridges the performance gap between underpowered, restricted capacity packs and overspec'd high-capacity batteries that add unnecessary weight. The engineering philosophy here is straightforward: deliver genuine performance, reliable consistency, and practical usability for the RC enthusiast who values dependability over chasing marginal performance gains.

What's in the Box

• Radient LiPo 3S 2200mAh 11.1V 50C battery with EC3 connector pre-fitted
• Soft case protection

Frequently Asked Questions

• What voltage is this battery and which RC models is it compatible with? — This is a 3S LiPo battery with an 11.1V nominal voltage (3.7V per cell × 3 cells). It's compatible with any RC model specified for 3S LiPo power, including countless RC cars UK hobbyists favour, electric RC buggies, crawlers, truggy-style vehicles, and many ready-to-run RC models. Always check your specific RC model's battery compatibility before purchasing.
• Is the Radient LiPo 3S 2200mAh suitable for beginners? — Yes, this is an excellent battery choice for RC enthusiasts new to LiPo batteries. The 2200mAh capacity is forgiving—large enough to provide genuine runtime without being so massive that it creates storage or charging challenges. The EC3 connector is a standard in the industry, and the 50C rating is suitable for most brushless and brushed RC models without risk of the battery becoming a limiting factor. That said, you'll need a quality LiPo charger capable of balancing 3S packs, and you should familiarise yourself with safe LiPo battery handling practices.
• How long will this battery last per charge? — Runtime depends entirely on your specific RC model, its motor efficiency, your driving style, and throttle usage. As a general guideline, expect 15-30 minutes of continuous use in typical RC car applications. Heavy throttle use and high-performance brushless setups will consume the battery more quickly, whilst gentler driving or crawler-style vehicles may achieve longer runtimes from a single charge.
• What charger do I need for this battery? — You'll need a LiPo-capable battery charger that supports 3S packs and ideally includes cell balancing functionality. Most modern RC battery chargers sold in the UK market support LiPo charging with balance-plug connections. The balance plug allows your charger to monitor and equalise the voltage across all three cells, which is essential for battery health and longevity.
• How does the 50C discharge rating affect my RC model's performance? — The 50C rating means this battery can safely deliver high amperage when demanded by your motor. In practical terms, this supports spirited acceleration, high-speed driving, and sustained power demands without the battery becoming a bottleneck. The 50C rating is suitable for brushless RC cars and other performance-oriented builds, though even brushed motor systems will benefit from the reliable power delivery.
• What is the difference between this and other 3S LiPo batteries? — The Radient LiPo 3S 2200mAh differs from other batteries primarily in capacity, discharge rating, and manufacturer reputation. This pack's 2200mAh capacity places it in the mid-range—larger capacity batteries offer longer runtime but add weight; smaller capacity packs sacrifice usable flight or run time. The 50C discharge rating is solid for most RC applications. Radient's reputation for consistent quality and reliable manufacturing makes this a sensible choice compared to no-name budget alternatives.
• Is this battery waterproof? — LiPo batteries themselves are not waterproof. Whilst the soft case offers some protection from moisture, you should never intentionally submerge this battery or expose it to rain during use. If your battery gets wet, allow it to dry completely before charging or using it. Keep the battery and charger away from water during all operations.
• How should I store this battery? — Store your Radient LiPo at room temperature (around 20-25°C) in a cool, dry place away from direct sunlight. For long-term storage between RC sessions, store the battery at approximately 50% charge state (around 3.8-3.9V per cell, or roughly 11.4-11.7V for this 3S pack). This storage voltage helps preserve cell health across long idle periods. Never store a fully charged LiPo or a fully depleted LiPo for extended periods.

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 2200mAh 11.1V 50C EC3 RDNB22003S50EC3 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.