Radient LiPo 3S 6500mAh 11.1V 30C RC Battery Deans HCT RDNB65003S30H

Overview

The Radient LiPo 3S 6500mAh 11.1V 30C Deans (HCT) battery pack is a reliable and capable power solution for RC enthusiasts in the UK seeking dependable performance from their electric RC models. Whether you are running a brushless RC car, RC truck, or other electric-powered RC vehicle, this 3S LiPo battery delivers the consistent power output and capacity needed for extended runtime and solid performance across a wide range of applications. With its 6500mAh capacity and 30C discharge rating, this battery provides the perfect balance of power delivery and energy storage for recreational and competitive RC racing alike.

Identified by Radient part number RDNB65003S30H, this three-cell lithium polymer battery pack features a Deans (HCT) connector, which is one of the most widely used connector types in the RC hobby. The 11.1V nominal voltage from the 3S cell configuration makes this battery compatible with a vast majority of modern RC car UK models, brushless motor setups, and electronic speed controllers (ESCs) designed for 3S LiPo operation. The Radient brand is well-recognised within the RC community for delivering quality battery products that offer excellent value without compromising on performance or safety standards.

This battery pack arrives in a protective soft case, which helps safeguard the cells during transport and storage, extending the lifespan of your investment. The compact dimensions and reasonable weight make it easy to fit into most RC model battery trays, though we recommend checking the specifications against your specific vehicle's battery compartment before purchase. Whether you are a weekend basher enjoying recreational RC fun or a serious competitor looking for consistent power delivery, the Radient 3S 6500mAh 11.1V 30C battery is engineered to meet the demands of modern electric RC vehicles.

Key Features

• 3S Cell Configuration (11.1V Nominal) — The three-cell design delivers 11.1V nominal voltage with a maximum of 12.6V when fully charged, providing excellent compatibility with the majority of brushless RC cars, RC buggies, and RC trucks available in the UK market today. This voltage is ideal for both stock and modified builds seeking a balance between speed and efficiency.
• 6500mAh Capacity — The 6500 milliamp-hour capacity offers substantial energy storage, translating to longer runtime during your RC sessions compared to lower-capacity alternatives. This means more time enjoying your RC vehicle before needing to recharge, which is particularly valuable during competitive race events or extended outdoor bashing sessions.
• 30C Continuous Discharge Rating — The 30C rating enables this battery to safely deliver continuous discharge current suitable for medium to high-power applications, supporting brushless motors and modern ESCs without thermal stress. This rating ensures reliable, sustained performance without the battery becoming a performance bottleneck in your RC setup.
• Deans (HCT) Connector — The widely-adopted Deans connector is the standard for many RC batteries and chargers, ensuring straightforward connection without needing adapter cables or specialised equipment. This universal compatibility means seamless integration with most modern RC electronics and charging systems currently in use across the UK.
• Protective Soft Case — The battery arrives protected in a soft case, which helps guard against physical damage during transport, storage, and handling. This protective packaging extends battery lifespan by preventing punctures and external damage that could compromise cell integrity.
• Compact Dimensions and Lightweight Construction — Measuring just 135 x 44 x 34mm and weighing 0.43kg, this battery pack is designed to fit into tight spaces within most RC model chassis. The compact form factor allows for flexible battery tray mounting and helps maintain optimal weight distribution in your RC vehicle.
• Age Recommendation 14+ — This battery is recommended for users aged 14 and above, reflecting the need for responsible handling of lithium polymer cells and understanding of safe charging and discharge practices.

Technical Performance

The Radient LiPo 3S 6500mAh 11.1V 30C battery pack represents solid engineering focused on delivering consistent power output for demanding RC applications. The 30C discharge rating is calculated based on the battery's capacity, allowing for a theoretical maximum continuous discharge of 195 amps (6.5Ah × 30C), though most RC vehicles will draw significantly less current during normal operation. This generous headroom ensures the battery performs reliably even under load, maintaining stable voltage delivery without excessive voltage sag that could affect motor performance or responsiveness. The three-cell 3S configuration is the most popular choice for electric RC cars and trucks across the UK hobby scene, striking an excellent balance between power delivery and motor longevity.

Built using quality lithium polymer cell technology, this battery pack benefits from modern energy density improvements that allow for high capacity in a relatively compact form factor. The 11.1V nominal voltage (rising to 12.6V fully charged) is optimised for brushless motor systems that have become the industry standard in RC vehicles, offering superior efficiency compared to older brushed motor setups. The soft case included with this battery helps protect the delicate cell structure from impacts and potential punctures during transport and storage, which is essential for maintaining cell safety and longevity. Regular users of RC batteries in the UK will appreciate that the Deans (HCT) connector used here is robust and reliable, featuring gold-plated contacts that resist corrosion and maintain consistent electrical connection even after multiple charge and discharge cycles.

What's in the Box

• Radient LiPo 3S 6500mAh 11.1V 30C battery pack
• Protective soft case

What You Need to Complete

• Compatible LiPo battery charger (supports 3S LiPo charging)
• RC vehicle with compatible 3S LiPo battery compartment and Deans (HCT) connector socket
• Battery charging lead (may be required depending on your charger)
• Discharge monitoring device or integrated charger discharge function (for safe battery maintenance)

Frequently Asked Questions

• Is the Radient 3S 6500mAh 11.1V 30C battery suitable for beginners? — Yes, this battery is suitable for RC enthusiasts aged 14 and above, including those new to the hobby. However, beginners should take time to learn proper LiPo charging procedures, storage practices, and safety protocols before use. Always charge in a safe location using a dedicated LiPo charger, monitor the charging process, and never leave charging batteries unattended. The 30C discharge rating makes this battery forgiving enough for learning setups while still delivering excellent performance as your skills develop.
• What RC vehicles is this 3S LiPo battery compatible with? — This battery is compatible with any RC car, truck, buggy, or other electric RC vehicle designed to accept 3S LiPo batteries with Deans (HCT) connectors. This includes many popular RC platforms such as brushless RC buggies, RC short course trucks, RC stadium trucks, and RC off-road vehicles across the UK market. Always verify that your vehicle's battery compartment can physically accommodate the 135 x 44 x 34mm dimensions and that your charger supports 3S LiPo charging before purchasing.
• How long will this battery last per charge? — Runtime depends on several factors including motor type, motor KV rating, ESC programming, driving style, and terrain conditions. A typical 6500mAh battery might provide 20-45 minutes of runtime in recreational use, though this can vary significantly. For competitive racing, many users keep multiple batteries in rotation to extend overall session time. The 6500mAh capacity sits in the mid-to-large range for 3S batteries, offering good endurance compared to smaller capacity alternatives.
• Can I use this battery with my existing charger? — This battery features a standard Deans (HCT) connector, so it will work with any LiPo charger that supports 3S charging and has a compatible Deans connector port. Most modern multi-chemistry chargers sold in the UK support both Deans and XT60 connectors. Always ensure your charger is set to 3S LiPo mode to charge safely and avoid overcharging, which can damage cells and create safety hazards.
• What does the 30C rating mean? — The 30C rating indicates the maximum continuous discharge rate of the battery relative to its capacity. It is calculated by multiplying capacity by the C rating (6500mAh × 30 = 195A maximum continuous discharge). This generous rating ensures the battery can power demanding brushless motor setups without excessive voltage sag or heat generation. For most recreational RC users, this rating provides plenty of headroom for safe, reliable operation.
• How should I store this battery when not in use? — LiPo batteries should be stored in a cool, dry location away from direct sunlight and moisture. Many RC enthusiasts store 3S LiPo batteries at approximately 3.8V per cell (around 11.4V total) rather than fully charged or fully discharged, as this storage voltage minimises stress on cell chemistry. Use the soft case provided to protect the battery from physical damage, and store in a fireproof container if possible for additional safety. Regularly check stored batteries for any signs of swelling or damage.
• Is this battery waterproof? — The Radient LiPo 3S 6500mAh battery itself is not waterproof. However, as a battery pack, it can tolerate brief water exposure during typical RC bashing or racing in wet conditions, provided you allow it to dry completely before charging and do not submerge it intentionally. Always protect your charger and balance charging leads from water, as these are not waterproof and present electrical hazards if wet.

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 6500mAh 11.1V 30C Deans (HCT) RDNB65003S30H 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.