Overview
The SPM 8.4V 3300mAh 7-Cell Smart NiMH Hump Battery with IC3 connector represents Spektrum's latest innovation in intelligent battery technology for RC cars and trucks. This reliable NiMH battery is engineered specifically for hobbyists and enthusiasts who demand consistent performance, automatic charge management, and comprehensive battery health monitoring. Whether you're running a ready to run RC car UK, upgrading your existing setup, or looking for a dependable power source that requires minimal fuss, this Smart battery delivers the convenience and intelligence that modern RC enthusiasts expect.
Smart battery technology has revolutionised the way RC enthusiasts manage their power systems. With the 8.4V 3300mAh Smart NiMH battery from Spektrum, you'll never have to manually set charge preferences again. The integrated Smart memory microchip automatically communicates with compatible Smart chargers, uploading unique battery parameters and health information in seconds. This intelligent approach eliminates guesswork and ensures your battery is charged optimally every single time, extending its lifespan and maintaining peak performance throughout its service life.
The IC3 output connector is factory-assembled for maximum convenience, offering compatibility with both the next-generation IC3 standard and older devices equipped with robust EC3™ connectors. This backwards compatibility ensures you can integrate this battery into a wide range of RC car platforms without requiring adapter cables. At 3300mAh capacity with 7 cells delivering 8.4V nominal output, this hump-style battery pack provides excellent power density in a form factor optimised for balance and weight distribution in modern RC vehicles.
Key Features
- Spektrum Smart Battery Technology — The integrated Smart memory microchip automatically uploads battery parameters and health data to compatible Spektrum Smart chargers, eliminating manual charge preference settings and ensuring perfectly optimised charging every time you connect the battery.
- 8.4V Nominal Output — With seven NiMH cells delivering 1.2V each, this battery produces a reliable 8.4V output that is ideal for a wide range of RC cars, trucks and stadium vehicles throughout the UK and beyond.
- 3300mAh Capacity — The substantial 3300mAh capacity provides extended runtime and excellent power delivery for sustained acceleration, smooth speed control and extended play sessions without frequent battery swaps.
- IC3 Connector with EC3™ Compatibility — Factory-assembled with the IC3 output connector, this battery remains compatible with older devices featuring EC3™ connectors, providing exceptional flexibility across different RC platforms and eliminating the need for adapter cables.
- Comprehensive Health Monitoring — The battery maintains a detailed error log including the number of over-heat, over-discharge and over-charge incidents, providing valuable diagnostic data to help ensure you've selected the right battery for your specific application.
- Hump Cell Configuration — The hump-style pack design optimises weight distribution and centre of gravity in your RC vehicle, contributing to improved handling characteristics and more predictable driving dynamics.
- NiMH Chemistry — Proven nickel-metal hydride technology offers reliable performance, robust cycle life, and excellent value, making it an ideal choice for club racers, weekend bashers and recreational drivers throughout the UK.
Technical Performance
The SPM 8.4V 3300mAh 7-Cell Smart NiMH Hump Battery represents professional-grade energy storage for competitive and recreational RC applications. Built using proven nickel-metal hydride cell chemistry, with seven cells configured in series to deliver 8.4V nominal output, this battery provides the stable power curve that NiMH technology is renowned for. The 3300mAh capacity ensures sustained performance across extended driving sessions, delivering sufficient amperage for acceleration whilst maintaining voltage stability during hard cornering and aggressive throttle input. The hump cell configuration is specifically engineered to position the battery's centre of mass optimally within your RC vehicle's chassis, improving handling balance and reducing weight transfer during dynamic manoeuvres. The Smart microchip integration elevates this battery beyond conventional packs by enabling automatic communication with Spektrum Smart chargers and receivers, effectively transforming your battery into an intelligent device that monitors itself and communicates its operational status in real-time. This microchip records comprehensive health data, including thermal events, discharge incidents and charge cycles, providing transparent insight into battery condition and longevity. The IC3 connector, combined with EC3™ backward compatibility, ensures seamless integration across diverse vehicle platforms without requiring cabling modifications or adapter components. Each battery is factory-assembled and tested, ensuring consistent quality and reliable performance from day one.
What's in the Box
- SPM 8.4V 3300mAh 7-Cell Smart NiMH Hump Battery: IC3 (1 unit)
- Spektrum Smart Charger (1 unit)
What You Need to Complete
Whilst this battery pack arrives complete with a Smart charger, you should ensure you have appropriate battery charging infrastructure and a compatible RC vehicle with an ESC and receiver system capable of accepting an 8.4V NiMH battery pack. Confirm your vehicle's battery bay can accommodate the hump configuration, and verify that your receiver is compatible with the IC3 connector standard (or use an adapter if your vehicle features older EC3™ connectors).
Frequently Asked Questions
- Is the SPM 8.4V 3300mAh Smart NiMH battery suitable for RC cars and trucks UK enthusiasts? — Yes, absolutely. This battery is specifically designed for RC cars and trucks, delivering 8.4V output that powers a wide range of vehicles from stadium trucks to off-road runners. The 3300mAh capacity provides excellent runtime, and the Smart technology ensures optimal charging regardless of your experience level.
- What makes Spektrum Smart battery technology different from standard batteries? — Spektrum Smart batteries integrate a microchip that automatically communicates with compatible Smart chargers, uploading battery parameters and health information instantly. You never need to manually configure charge settings again; the charger knows exactly how to treat each battery optimally. Additionally, the battery maintains a detailed error log tracking over-heat, over-discharge and over-charge incidents, giving you transparent insight into battery condition and longevity.
- Will this battery work with my existing RC setup? — The IC3 connector is factory-assembled and remains compatible with devices equipped with older EC3™ connectors, providing exceptional flexibility. However, you should verify that your vehicle's ESC and receiver are rated for 8.4V input and that your battery bay can accommodate the hump configuration. If your vehicle uses different connectors, adapter cables are available separately.
- What is the difference between NiMH and LiPo batteries? — NiMH batteries like this Spektrum pack offer proven reliability, robust cycle life, excellent value for money, and simpler charging requirements. They deliver stable power throughout the discharge curve. LiPo batteries offer higher energy density and lighter weight but require more careful handling and specialised chargers. For many UK RC enthusiasts, NiMH remains an excellent choice, particularly for recreational driving and learning.
- How long will the battery last on a charge? — Runtime depends entirely on your vehicle's motor, ESC, driving style and terrain. The 3300mAh capacity is substantial and should provide extended play sessions for most applications, though exact runtime cannot be specified without knowing your specific vehicle's power consumption characteristics.
- Do I need a Spektrum Smart Charger to use this battery? — Whilst the battery includes a Spektrum Smart Charger, the Smart features only activate when connected to a compatible Smart charger. You can charge this battery with standard NiMH chargers, but you'll miss out on the automatic parameter upload and comprehensive health monitoring that makes Smart batteries special.
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 SPM 8.4V 3300mAh 7-Cell Smart NiMH Hump Battery: IC3 O-SPMX33007C3H 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.
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
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