Features
- Advanced, user-friendly Smart G2 charging technology that fits into any hobby budget
- Delivers 2x50W of charging power and charges two batteries simultaneously or use a single channel for up to 80W of power.
- Includes selectable IC3® and IC5® charging ports - no separate adapters required
- Color LCD screen interface features intuitive menus, icons, and navigation tools
- Charges AND balances Smart G2 batteries with one simple IC3® or IC5® connection - no separate balance lead needed
- Charges 1 - 4S LiPo/LiFe/LiIon/LiHV, 1 - 12S NiCd and 1 - 12S Smart NiMH batteries
- Integrated microchip stores unique parameters for each battery
Overview
The Spektrum™ Smart Powerstage™ Bundle is a one-box solution for vehicles requiring top performance, offering the total package with the ease of use of G2 Smart Technology, less hassle, and maximum fun. Spektrum Smart technology G2 Powerstage bundles bring the latest Smart technology in one package for first-time drivers and enthusiasts. The Smart Powerstage bundles give users the most advanced and easiest-to-use battery and charging technology.
- Application: Surface vehicles
- Battery type: LiPo (Lithium Polymer)
- Battery voltage: 14.8V nominal
- Battery capacity: 5000mAh
- Number of cells: 4S
- Voltage per cell: 3.7V
- Continuous discharge rating: 50C
- Maximum continuous discharge current: 250A
- Maximum charge current: 25A
- Maximum charge rate: 5C
- Standard charge current: 5A
- Standard charge rate: 1C
- Battery connector type: IC5
- Balance connector: G2 Smart Battery integrated data wire (no separate balance lead required)
- Charge protection circuitry: Yes
- Integrated balancing: Yes (Internal Balancer and Internal Adapter)
- Hard case included: Yes
- Temperature monitoring: Yes
- Thermal protection: Yes
- Peak detection: Yes
- Voltage meter: Yes
- Programmable: Yes
- PC connectivity: Yes
- Software updates: Yes
- Charger model: S155 G2 1x55W AC Smart Charger (SPMXC2050)
- Charger power output: 55W single channel
- Charger input: AC power (mains)
- Charger battery compatibility: 1-4S LiPo/LiFe/Li-Ion/LiHV, 1-12S NiCd/NiMH
- Charger connectors: IC3 and IC5 (selectable ports)
- Charger display: Colour LCD screen with menus, icons and navigation
- Charger features: Auto Charge (automatic parameter recognition), real-time countdown timer, sleep mode
- Charger USB port: Yes (front-mounted for firmware updates)
- Power cord: Detachable AC power cord included
- Auto storage discharge: Yes (to 3.90V per cell after 72 hours inactivity)
- Auto storage discharge rate: Three times faster than G1 generation
- Battery microchip storage: Unique parameters and battery health information
Overview
The Spektrum Smart Powerstage 4S Surface Bundle is the ultimate one-box solution for RC enthusiasts looking to power their surface vehicles with advanced battery and charging technology. Designed specifically for drivers who demand top performance without the complexity, this bundle brings together Spektrum's latest Generation 2 Smart Technology in a complete package that's perfect for both newcomers discovering the world of RC cars UK and experienced hobbyists upgrading their setup. Whether you're running a brushless RC truck, buggy, or short course racer, this ready to run bundle delivers everything needed to get straight into the action.
What sets this Powerstage bundle apart is its intelligent integration of battery and charger technology. The package combines a powerful 5000mAh 4S LiPo battery with a dedicated 55-watt AC charger, creating a seamless ecosystem where both components communicate automatically. This isn't just convenient—it's genuinely safer and more efficient than traditional charging methods. For RC car enthusiasts in the UK seeking reliable, user-friendly power solutions, this Spektrum bundle represents the perfect balance of affordability and advanced functionality.
Spektrum Smart technology takes the guesswork out of RC power management. When you connect a Smart G2 battery to the included S155 charger, the battery's integrated microchip instantly uploads its unique charging parameters and health information to the charger. This means no manual settings, no separate balance leads, and no complicated procedures—just connect, press start, and let Smart technology handle the rest. For first-time drivers and enthusiasts alike, this level of simplicity combined with genuine performance makes the Powerstage 4S bundle an exceptional choice.
Key Features
- 55-Watt S155 G2 Smart Charger — The included Spektrum S155 delivers 55 watts of AC charging power, making it ideal for 4S batteries and capable of charging a wide range of battery types including LiPo, LiFe, Li-Ion, LiHV, NiMH and NiCd packs. This power level strikes the perfect balance between charging speed and safety.
- 5000mAh 4S 14.8V Smart G2 LiPo Battery with 50C Discharge Rating — The included battery provides 5000mAh of capacity at 14.8 volts with an impressive 50C continuous discharge rating, delivering the high-performance power output that modern brushless RC surface vehicles demand whilst maintaining excellent longevity and reliability.
- One-Connection Charging and Balancing — Unlike traditional LiPo batteries requiring separate balance leads, the Spektrum Smart G2 battery features integrated balancing through its IC5 connector data wire. You simply plug in one connection and the charger automatically balances all four cells, eliminating complexity and reducing the risk of balancing errors.
- Auto Charge Recognition Technology — The S155 charger's Auto Charge feature instantly recognises your Smart battery's parameters including chemistry type and optimal charge rate, then begins safe, proper charging automatically. You'll never need to manually configure charging settings for Smart batteries.
- IC3 and IC5 Connector Compatibility — The S155 charger includes selectable ports for both IC3 and IC5 connectors, eliminating the need for separate adapters and ensuring compatibility with the vast majority of Spektrum Smart batteries and RC vehicles currently in use.
- Colour LCD Screen with Real-Time Countdown — The intuitive colour LCD interface features clear menus, helpful icons, and simple navigation tools. An on-screen clock counts down the exact minutes remaining until your battery is fully charged, so you always know when you'll be back in action.
- Auto Storage Discharge Protection — Spektrum G2 Smart batteries automatically discharge to a safe storage voltage of 3.90V per cell after 72 hours of inactivity, protecting your investment and extending battery lifespan. You can customise these auto storage settings to suit your preferences.
- Three Times Faster Storage Discharge — Compared to previous Generation 1 Smart batteries, G2 technology achieves storage discharge three times faster, meaning your batteries reach safe storage voltage more quickly if left between charging sessions.
- Multiple Battery Chemistry Support — Beyond the included LiPo, the S155 charger supports charging up to 4S LiPo/LiFe/Li-Ion/LiHV batteries and 1-12S NiCd and NiMH packs, making this charger a versatile addition to any RC collection that may grow to include different battery types.
- Programmable Settings and Software Updates — Advanced users can adjust charge rates and other parameters through the charger's menu system, and when new firmware updates become available, you can update the charger via the convenient USB input port on the front without needing special cables.
- Integrated Temperature Monitoring — The Smart G2 battery includes built-in temperature monitoring, working with the S155 charger to optimise charging profiles and protect against overheating during high-performance discharge cycles.
- Peak Detection and Smart Safety Features — The charger features peak detection technology to determine when your battery is fully charged, whilst thermal protection safeguards against temperature-related issues. Charge protection circuitry in the battery prevents overcharging and extends overall pack longevity.
- Hard Case Included — Your premium 5000mAh battery arrives in a protective hard case, providing excellent protection during storage and transport to keep your investment safe when not in use.
- Sleep Mode and Detachable Power Cord — The S155 charger includes a sleep mode to reduce power consumption when not actively charging, and features a detachable AC power cord for convenient storage and portability.
Technical Performance
The Spektrum Smart Powerstage 4S Surface Bundle delivers genuine high-performance capability wrapped in user-friendly technology. The 5000mAh 4S LiPo battery provides 14.8 volts of nominal voltage across four lithium polymer cells, with a maximum continuous discharge current of 250 amps—enough power to drive modern brushless RC buggies, trucks and short course racers to impressive speeds. The 50C continuous discharge rating ensures the battery can sustain demanding performance while maintaining structural integrity and longevity over hundreds of charge cycles. The maximum charge current reaches 25 amps, with a standard charge rate of 1C (5A), allowing flexible charging options depending on your schedule. The battery's integrated microchip stores unique parameters for each charging session, continuously learning and optimising for your specific driving patterns and RC car UK environment. The S155 charger's 55-watt output, whilst modest compared to multi-channel competition chargers, is perfectly calibrated for 4S battery charging—providing sufficient power without generating excessive heat. The colour LCD interface displays real-time charging status, estimated time to completion, and battery health information. With integrated balancing, charge protection circuitry, thermal monitoring, and peak detection, this complete system represents professional-grade power management in an accessible, affordable package that's ideal for serious RC car enthusiasts who value both performance and reliability.
What's in the Box
- Spektrum S155 G2 1x55W AC Smart Charger (Model SPMXC2050)
- Spektrum 5000mAh 4S 14.8V Smart G2 LiPo Battery 50C with IC5 connector (Model SPMX54S50H5)
- Hard protective carry case for the battery
- Detachable AC power cord for the charger
- Instruction manuals and quick reference guides (available in English, German, French and Italian)
Frequently Asked Questions
- Is the Spektrum Smart Powerstage 4S bundle suitable for RC car beginners? — Absolutely. This bundle is specifically designed for first-time drivers and newcomers to the hobby. The Auto Charge feature recognises your battery and begins charging automatically with no manual settings required. The integrated Smart technology handles all the technical complexity, allowing beginners to focus on enjoying their RC car rather than worrying about charging procedures and battery management. The hard case protects your expensive battery, and automatic storage discharge means you don't have to actively maintain the battery between uses.
- What happens if I don't charge my battery for several days? — Your Spektrum G2 Smart battery automatically discharges to a safe storage voltage of 3.90V per cell after 72 hours of inactivity. This automatic storage discharge feature extends your battery's lifespan by preventing it from remaining fully charged during storage, which degrades LiPo cells over time. You can customise the auto storage settings to match your preferences if you'd like different behaviour. This feature eliminates the need for manual battery management between RC car sessions.
- Can I charge other batteries with this charger? — Yes. The S155 charger is compatible with 1-4S LiPo/LiFe/Li-Ion/LiHV batteries and 1-12S NiCd and NiMH packs. However, only Smart batteries automatically upload their parameters to the charger—non-Smart batteries require manual configuration of chemistry type and charge rate. The Smart G2 features make charging simpler and safer, but the S155 is versatile enough to support virtually any RC battery type you might own.
- What is the difference between this 4S bundle and other Spektrum Powerstage bundles? — Spektrum offers Powerstage bundles configured for different vehicle requirements. The 4S bundle is optimised for surface vehicles (trucks, buggies, short course racers) that benefit from 14.8V power. Other configurations include 2S and 3S bundles with lower voltage outputs for different vehicle types and size categories. Select your bundle based on your specific RC car's battery requirements—your vehicle manual or manufacturer specifications will indicate the correct voltage.
- How long does it take to fully charge the 5000mAh battery? — At the standard 1C charge rate (5 amps), charging approximately 5 hours with the S155 charger. The colour LCD screen displays a real-time countdown showing exactly how many minutes remain until full charge. You can increase charging speed by adjusting the charge rate (up to 25A maximum), but faster charging generates more heat. The charger's intelligent thermal protection monitors battery temperature throughout charging to ensure safe operation.
- Will I need any adapters to use this charger with my RC car? — No adapters needed. The S155 includes selectable IC3 and IC5 connector ports built into the charging cables, covering the vast majority of Spektrum Smart batteries currently available. Simply select the appropriate port for your battery's connector type and plug in—no additional purchases required.
- Can I charge two batteries simultaneously with this charger? — The S155 is a single-channel 55W charger, so you charge one battery at a time. If you require the ability to charge multiple batteries simultaneously, Spektrum offers dual-channel S250 chargers that provide two 50W channels or 80W single-channel capacity, though those are more expensive. For most hobbyists running one or two RC cars, the S155 provides excellent value and charging performance.
- What makes Smart G2 technology different from regular LiPo batteries? — Smart G2 batteries contain an integrated microchip that stores unique charging parameters, battery health data, and usage history. When connected to a Smart charger, this information uploads automatically, eliminating manual configuration. The integrated balancing system charges all four cells evenly through the data wire in the main connector—no separate balance lead is needed. Auto storage discharge protects your battery automatically. Temperature monitoring optimises charging profiles. For RC car UK users, Smart technology transforms battery management from a technical chore into a simple, safe, automated process.
- Is the 50C discharge rating suitable for high-performance brushless RC trucks? — Yes, the 50C continuous discharge rating provides 250 amps of maximum continuous discharge current from the 5000mAh battery, more than sufficient for modern brushless motors in surface vehicles. This rating ensures your battery can deliver the sustained power output that competitive racing and aggressive driving demands, whilst maintaining safety and longevity. The 50C rating represents a balance between performance capacity and reasonable cost—higher ratings are available but add expense.
- What USB firmware updates are available for the S155 charger? — Spektrum periodically releases firmware updates that enhance charger functionality, improve charging algorithms, and add support for new battery types. You update the charger by connecting a USB cable to the port on the front of the unit—no special cables are required. Check the Spektrum website or MySpektrum account regularly to download the latest firmware and keep your charger current.
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 Smart Powerstage 4S Surface Bundle: (2) G2 5000mAh 2S LiPo I O-SPMXPSS500I 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.
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