Overview
The Spektrum 11.1V 5000mAh 3S 50C Smart G2 Hardcase LiPo Battery represents the latest generation in intelligent RC battery technology, designed specifically for pilots and drivers who demand reliable, maintenance-free power for their RC vehicles. Whether you're running a competitive race car, an RC truck, or any hobby-grade RC model, this 3S LiPo battery delivers the performance and convenience that modern RC enthusiasts expect. The Smart G2 technology transforms the way you charge and maintain your RC batteries, eliminating the frustration of complex charging procedures and balance lead management that has traditionally plagued RC car UK owners and hobbyists.
This hardcase LiPo battery is engineered for those who want more from their RC power systems. The 50C continuous discharge rating ensures you get high performance and longevity from every charge cycle, making it suitable for high-speed RC racing, aggressive bashers, and demanding applications where consistent power delivery is crucial. The innovative Smart Battery technology stores all your battery's vital information in an integrated microchip, automatically communicating with your Spektrum Smart charger to make the entire charging process safer, faster, and more convenient than ever before.
The 5000mAh capacity combined with 11.1V nominal voltage provides an excellent balance of runtime and weight distribution for most medium to large RC vehicles. The hardcase construction protects the cells from punctures and impacts during rough landings or competition use, whilst the advanced Smart G2 features mean you're investing in a battery that practically takes care of itself. For RC enthusiasts across the UK seeking a premium, intelligent LiPo battery solution that reduces maintenance while maximising performance, this Spektrum Smart G2 pack stands as an industry-leading choice.
Key Features
- Smart G2 Technology with Automatic Data Upload — When connected to a Spektrum Smart charger, this battery automatically uploads its unique charging parameters and health information from the integrated memory microchip, eliminating the need for manual setup and ensuring optimal charging every single time you plug it in.
- Single IC5 Connector with No Balance Lead Required — The innovative IC5 connector carries all balancing information through its integrated data wire, meaning you only need one connection to charge and balance your battery, dramatically simplifying the charging process compared to traditional multi-lead systems.
- Powerful 50C Continuous Discharge Rating — This high discharge rate delivers exceptional performance and longevity, providing consistent power delivery for high-speed running, racing applications, and aggressive driving without voltage sag or power loss during demanding use.
- Automatic Smart Auto Storage Discharge — The battery arrives factory-programmed to automatically discharge to a safe storage voltage of 3.90V after 72 hours of inactivity, meaning your battery maintains health and performance with zero maintenance required, even if left unused for extended periods.
- Three Times Faster Storage Discharge Rate — The upgraded G2 generation offers storage discharge speeds that are three times faster than previous G1 Smart batteries, allowing your pack to reach safe storage voltage more quickly whilst maintaining long-term battery health and performance.
- Integrated Microchip with Comprehensive Data Logging — An advanced microchip stores essential battery information including brand, chemistry, cell count, capacity, C rating, temperature, internal resistance, and charging cycle count, plus an error log tracking over-charge, over-discharge, and over-temperature incidents.
- Hardcase Construction with Metal Side Plates — The rigid hardcase protection includes thicker internal metal side plates that improve heat dissipation and provide superior protection for cells against punctures during rough landings, impacts, and competitive use.
- Customisable Charge Rate Memory — You can adjust the charge rate to suit your preferences, and the battery's integrated microchip remembers your last setting, automatically applying it the next time you charge, allowing you to take full advantage of the battery's 5C maximum charge rating.
- IC5 to EC5 Compatibility — The IC5 connector is backwards compatible with EC5 style connectors, allowing this Smart battery to work with many existing RC systems whilst providing access to all the advanced Smart features.
- Safer, Simpler Operation — Smart G2 technology makes balance charging safer and simpler through its integrated intelligence, removing guesswork from the charging process and helping newer RC enthusiasts get reliable results from day one.
Technical Performance
This Spektrum Smart G2 LiPo battery delivers outstanding technical specifications engineered for serious RC performance. With an 11.1V nominal voltage across three LiPo cells, this battery provides the optimal voltage range for high-performance RC vehicles, whilst the 5000mAh capacity offers excellent runtime without excessive weight. The 50C continuous discharge rating means the battery can safely deliver 250 amps continuously (5000mAh × 50C), with a maximum burst discharge rate also rated at 50C, making it suitable for high-speed racing, aggressive off-road bashing, and competitive applications where consistent power is essential. The maximum charge rate of 5C allows charging at up to 25 amps, with the standard charging current set at 5A, enabling relatively quick turnaround between runs whilst protecting battery health. The 55.5 watt-hour energy capacity provides excellent performance across a wide range of RC applications, from 1/10-scale vehicles to larger platforms requiring sustained power delivery. The hardcase construction measures 138mm in length, 46mm in width, and 35mm in height, with a total weight of 430 grams, making this a substantial but well-balanced power source for medium to large RC models. The 10 AWG wire gauge provides low resistance and efficient power delivery, minimising voltage sag during high-draw operations. The integrated charge protection circuitry prevents over-charging, over-discharging, and thermal runaway, whilst the innovative Smart Technology automatically manages these critical parameters in coordination with compatible Spektrum Smart chargers, ensuring your battery remains in peak condition for extended use and longevity.
What's in the Box
- 1 × Spektrum 11.1V 5000mAh 3S 50C Smart G2 Hardcase LiPo Battery with IC5 connector
- Integrated Smart Battery microchip with full charging and performance data storage
What You Need to Complete
- Spektrum G2 Smart Charger (or earlier Smart Charger with G2 update) — required to charge and balance this battery and access all Smart G2 features
- Compatible RC vehicle with 3S LiPo battery connector (EC5 or IC5 style)
Frequently Asked Questions
- What makes the Spektrum Smart G2 better than a standard LiPo battery? — The Smart G2 incorporates an integrated microchip that stores and automatically uploads your battery's unique parameters, health data, and charging history to your Spektrum Smart charger. This eliminates manual setup, simplifies the charging process by removing the need for a separate balance lead, and ensures optimal charging parameters every single time. The battery also automatically discharges to a safe storage voltage after 72 hours of inactivity, meaning it maintains health and performance with zero maintenance required from you.
- Do I need a special charger for this battery? — Yes, this battery requires a Spektrum G2 Smart Charger or an earlier Smart Charger model that has been updated with the G2 firmware. The battery's advanced features and data logging capabilities require communication with a compatible Smart charger to function properly and deliver all the benefits of the Smart G2 technology.
- Is this battery suitable for beginners? — Absolutely. In fact, the Smart G2 technology makes this battery particularly beginner-friendly because it removes the complexity from charging and maintenance. You simply connect the battery to your Spektrum Smart charger using the single IC5 connector, and the battery automatically tells the charger how to charge it safely. There's no need to understand C ratings, balance leads, or discharge procedures—the battery handles that intelligence for you.
- What is the difference between the 50C version and other Smart G2 batteries? — The 50C rating means this battery can continuously deliver significantly more current than lower-rated versions, making it ideal for high-performance racing, competitive applications, and aggressive driving where maximum power and consistent voltage delivery are critical. Lower C-rated batteries may experience more voltage sag under heavy loads, whilst the 50C rating ensures sustained performance even during demanding operations.
- How long does this battery take to charge? — With the maximum charge rate of 5C, this 5000mAh battery can charge at up to 25 amps, allowing a full charge in approximately one hour. The Spektrum Smart charger will automatically apply the optimal charge rate based on the battery's stored parameters, though you can also manually adjust this if needed and the battery will remember your preference for future charges.
- What does the auto-storage discharge feature do? — The battery comes factory-programmed to automatically discharge to a safe storage voltage of 3.90V per cell (11.7V total) after 72 hours of sitting idle. This feature maintains long-term battery health and performance, prevents the damage caused by storing fully-charged LiPo batteries, and means your battery is always ready to use without requiring any maintenance or action from you. You can change this setting if preferred.
- Is this battery waterproof? — Whilst the battery itself is not designed for submersion, the hardcase construction and sealed connectors provide good protection against water splashes and wet conditions typical in RC use. However, LiPo batteries should never be submerged and must be kept away from water ingress into the cells.
- What vehicles can use this 3S battery? — This 11.1V 3S LiPo is suitable for any RC vehicle designed to accept 3S LiPo batteries with IC5 or EC5 connectors. This includes most 1/10-scale RC cars, trucks, buggies, and crawlers designed for high-performance use, as well as larger 1/8-scale vehicles and various hobby-grade RC models from manufacturers across the RC car UK market.
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 3S 11.1V SMART G2 50C IC5 O-SPMX53S50H5 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.
