Overview
Experience the next generation of reliable RC power with the Spektrum 7.4V 5000mAh 2S 50C Smart G2 Hardcase LiPo Battery featuring IC5 connector. This premium LiPo battery is engineered for drivers and pilots who demand both convenience and performance from their RC vehicles. Whether you're running an RC car in the UK, tackling technical terrain, or pushing your model to its limits, this battery delivers the sustained power and intelligent features that serious RC enthusiasts expect. The Smart G2 technology transforms the way you charge, monitor, and maintain your batteries, removing the complexity that has traditionally surrounded LiPo battery management.
Spektrum's Smart G2 generation represents a significant step forward in RC battery technology. This 5000mAh capacity battery provides substantial runtime for extended sessions, whilst the powerful 50C continuous discharge rating ensures your vehicle receives the raw power needed for aggressive acceleration, high-speed runs, and demanding manoeuvres. The hardcase construction protects your investment during transport and storage, whilst the integrated microchip stores critical data about your battery's health, charging history, and performance characteristics. With the IC5 connector system, you get a single-point connection that eliminates the need for a separate balance lead — a genuine quality-of-life improvement for RC enthusiasts across the UK.
The Smart G2 batteries practically manage themselves. From the moment you unbox this battery, it comes factory-programmed to automatically discharge to a safe storage voltage of 3.90V after 72 hours of inactivity. This means longer battery life, better performance across the life of the pack, and peace of mind knowing your investment is being protected automatically. The faster auto-discharge rate — three times quicker than previous G1 Smart batteries — ensures your battery reaches safe storage voltage more quickly when you're not using it.
Key Features
- Smart G2 One-Wire Connection — The revolutionary single IC5 connector eliminates the need for a separate balance lead, making charging faster, simpler, and more intuitive. Simply plug in the battery to your compatible Smart charger and let the microchip handle all the technical parameters automatically.
- 50C Continuous Discharge Rating — This powerful discharge rate delivers sustained high performance for aggressive driving and racing applications, giving your RC car or aircraft the energy delivery it needs for rapid acceleration and demanding flight manoeuvres without voltage sag.
- Automatic Storage Discharge — Factory-programmed to safely discharge to 3.90V per cell after 72 hours of inactivity, this feature preserves battery lifespan and protects your LiPo from the dangers of over-storage, which is a leading cause of battery degradation in RC applications.
- Integrated Memory Microchip — Every battery stores essential health data including brand, capacity, C rating, individual cell voltage, battery temperature, and charging/discharge cycles. This data-rich approach helps you make informed decisions about battery usage and replacement timing.
- Error Logging System — The battery tracks unhealthy events including over-charge, over-discharge, and over-temperature incidents, providing you with a detailed history that helps diagnose issues and ensure your battery is performing optimally across every use.
- Hardcase Protection — The rigid hardcase construction protects your battery during transport, storage, and rough handling, whilst providing structural integrity that helps prevent damage during impacts or accidents typical of RC car bashers.
- IC5 Connector Compatibility — The IC5 connector is backwards compatible with EC5 style connectors, allowing you to use this battery with both modern Smart chargers and earlier systems, providing flexibility and longevity in your RC setup.
- Faster Auto Discharge Rate — The 1.5A auto-discharge capability is three times faster than G1 Smart batteries, meaning your battery reaches safe storage voltage more quickly, perfect for the busy RC enthusiast who may not use batteries for several days at a time.
- User-Customisable Charge Rates — The battery's microchip remembers your preferred charge rate settings, automatically applying them on the next charge cycle so you don't need to re-programme your charger every time you use the battery.
- Maximum 5C Charge Rate — The battery supports charging at up to 5C (25A in this case), allowing rapid top-ups for back-to-back sessions, though standard charging at 1C (5A) is recommended for maximum lifespan and safety.
Technical Performance
The Spektrum Smart G2 5000mAh 2S battery is engineered with precision for demanding RC applications. With a voltage of 7.4V across two lithium polymer cells and a capacity of 5000mAh, this battery delivers 37 watt-hours of energy storage — substantial enough for extended runtime on most RC vehicles. The 50C continuous discharge rating means the battery can deliver 250 amps continuously (50 × 5000mAh), making it suitable for high-performance brushless motor systems, speed racing applications, and vehicles with demanding power requirements. The burst discharge capability also supports 50C peak rates, giving you access to maximum power when you need rapid acceleration or aggressive manoeuvres. Construction includes a durable hardcase exterior measuring 138mm in length, 46mm in width, and 25mm in height, with a total weight of 315 grams including connectors and casing. The battery incorporates charge protection circuitry to prevent over-charging, and the 10 AWG wire gauge provides excellent current carrying capacity with minimal voltage drop during high-drain operations. Smart chargers compatible with G2 technology automatically recognise this battery's parameters and apply optimal charging protocols, making it an excellent choice for RC car enthusiasts across the UK who want to eliminate guesswork from their charging routine.
What's in the Box
- Spektrum 7.4V 5000mAh 2S 50C Smart G2 Hardcase LiPo Battery with IC5 connector
What You Need to Complete
- Spektrum G2 Smart Charger (or earlier Smart Charger with G2 firmware update) — essential for charging and balancing this battery safely
Frequently Asked Questions
- Is the Spektrum Smart G2 5000mAh battery compatible with my current charger? — No, this battery requires a Spektrum G2 Smart Charger or an earlier Smart Charger that has been updated with G2 firmware. The Smart G2 battery communicates through its microchip with compatible chargers, automatically uploading its parameters. If you own an older Smart charger, Spektrum typically offers free firmware updates. Contact Spektrum directly or check their website for update availability.
- What makes the Smart G2 better than regular LiPo batteries? — Smart G2 batteries eliminate the complexity of manual charging parameter setup. Whilst standard LiPo batteries require you to manually set charge rate, cell count, capacity, and balancing on your charger every time, Smart G2 batteries upload all this information automatically. The integrated microchip stores this data permanently, so your charger knows exactly how to handle the battery safely and optimally. Additionally, the automatic storage discharge function keeps your battery at a safe voltage when not in use, extending its lifespan dramatically.
- Can I use this battery in my RC car, RC plane, or FPV drone? — The 7.4V 2S configuration is popular for RC cars, RC buggies, and many RC boat applications. Planes and drones may require different voltage configurations depending on their power system design. Check your vehicle's battery specifications carefully — it should state that it accepts 2S LiPo batteries at 7.4V. The 5000mAh capacity provides excellent runtime for most applications. Always verify connector compatibility as well; this battery features an IC5 connector, so your vehicle must accept IC5 or EC5 connections.
- How long does this battery take to charge? — At the standard 1C charge rate (5 amps for this 5000mAh battery), full charging typically takes approximately one hour. If you charge at the maximum 5C rate (25 amps), charging can be completed in approximately 12 minutes, though faster charging generates more heat and may reduce the battery's lifespan slightly. Always allow the battery to cool between charging and use if you employ maximum charge rates regularly.
- What does the 50C discharge rating mean in practical terms? — The C rating indicates how many times the battery's capacity can be discharged per hour. A 50C rating on a 5000mAh battery means you can safely draw a maximum continuous current of 250 amps (50 × 5 amps). For reference, a high-performance brushless motor system in a competitive RC car might draw 100-150 amps, whilst casual bashing typically draws 50-80 amps. This 50C rating provides substantial headroom for virtually any 1/10-scale application, ensuring your battery won't be the limiting factor in your vehicle's performance.
- Is this suitable for beginners? — Yes, absolutely. In fact, the Smart G2 technology is particularly well-suited to beginners because it removes the complexity of manual charger programming. Beginners don't need to understand C ratings, charge rates, or cell counts — the battery does this automatically. However, you will need a compatible Smart charger, which is an additional investment. Once you have the charger, this battery system is arguably easier to use than traditional LiPo batteries.
- Why do I need the automatic storage discharge feature? — LiPo batteries stored at full charge degrade rapidly and can become dangerous. Storing at a moderately discharged voltage (3.90V per cell in this case) dramatically extends lifespan. The automatic feature means you can simply leave your battery after a session and return a few days later to find it safely discharged. Without this feature, you'd need to manually discharge the battery after every use, which is time-consuming and easy to forget.
- What happens if I over-charge or over-discharge this battery? — The battery includes charge protection circuitry that prevents over-charging when connected to a compatible Smart charger. Over-discharge is prevented by the automatic storage discharge function. However, the battery also logs these events if they occur, so your battery's integrated microchip will record them. If you notice frequent over-charge or over-discharge incidents in your battery's error log, it may indicate a charger malfunction, and you should investigate before continued use.
- How many charge cycles will this battery last? — Most quality LiPo batteries last between 300-1000 charge cycles depending on usage conditions. This battery stores your charge cycle count in its microchip, so you can monitor this information through your Smart charger. Factors affecting lifespan include charge rate (faster charging reduces lifespan), discharge depth, storage conditions, and operating temperature. This battery's automatic storage discharge and error-logging help maximise lifespan by preventing the worst-case scenarios.
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 5000mAh 2S 7.4V SMART G2 50C IC5 O-SPMX52S50H5 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.
