Spektrum Smart G2 Pro Series Air LiPo Battery Overview
Spektrum is proud to introduce our lineup of Smart LiPo batteries designed to provide consistently higher voltage throughout the entire run of the battery under even the most extreme amperage loads.
For RC pilots, maximum capacity and power are key, and the new Spektrum Smart Pro- Series Air batteries deliver! The Pro series batteries allow for more capacity to be squeezed into the LiPo cells, allowing for larger mAh and C ratings when compared to similarly sized battery packs. Specifically crafted for RC air applications where every inch of space counts, these batteries are perfectly suited for airframes where space is at a premium. These innovative cells offer a compact design without sacrificing the reliable power and flight times you demand.
The Smart Pro-Series Air battery's benefits include longer battery life, better performance over the life of the pack, and the peace of mind that comes from knowing your Smart battery is maintenance-free.
When a Smart Pro-Series battery is connected to a Spektrum Smart charger, its unique charging parameters and health information are uploaded to the charger from its integrated memory microchip. You can view and set preferences through the charger, such as charge rates, so all that's required to charge the pack is connecting it to your Smart charger. Smart technology takes care of the rest.
Spektrum Smart Pro-Series batteries store a wide variety of essential information, including:
- Battery Brand
- Battery Type
- Battery Capacity
- Battery C Rating
- Individual Cell Voltage
- Battery Temperature
- Charge/Discharge Cycles
Spektrum Smart Pro-Series Air batteries also maintain an error log, including over-heat, over-discharge, and over-charge incidents. This data can help assure that the battery you've chosen is suitable for the application.
Innovative Spektrum Smart Pro-Series Air batteries are so easy to use that they nearly take care of themselves. Smart technology makes it easy to achieve peak battery performance, reliability, and longevity!
Spektrum Smart G2 Pro Series Air LiPo Battery Features
- High-capacity packs
- Simpler and safer to use
- High-performance 5C max Charge rate for super-fast charge times without damaging the health of the pack
- Powerful and consistent 120C Discharge Rate
- Automatic Charging on Spektrum Smart charger reduces time and get you back to flying fast
- Spektrum Smart charger required
Spektrum Smart G2 Family
Overview
The Spektrum SPM 14.8V 2900mAh 4S 120C Smart G2 Pro Air LiPo Battery represents the pinnacle of modern RC battery technology, delivering exceptional performance for serious RC pilots who demand reliability, capacity and consistent power delivery. This advanced lithium polymer battery is purpose-built for RC aircraft applications where every gram and millimetre of space matters, offering a compact design that doesn't compromise on power or flight time. Whether you're flying competition aerobatic aircraft, high-performance RC planes, or any airframe requiring serious punch, this 4S configuration provides the voltage and amperage you need to dominate the skies.
Smart G2 Pro Series batteries represent a significant advancement in RC battery engineering. These innovative cells allow manufacturers to squeeze more capacity into the same physical footprint compared to standard battery packs, meaning you get longer flight times without the bulk. The Pro Series designation indicates these are premium-grade batteries specifically optimised for air applications where space is genuinely premium and performance cannot be compromised. UK RC pilots choosing quality batteries for their aircraft collection will find this battery delivers the consistency and reliability they expect from Spektrum's renowned Smart battery ecosystem.
What truly sets this battery apart is the integration of Spektrum's groundbreaking Smart technology. Unlike conventional RC batteries, this Smart battery contains an integrated microchip that stores and transmits essential operational data. This means no more guessing about your battery's health or manually programming charging parameters—when you connect this battery to a Spektrum Smart charger, all the charging data uploads automatically. The battery takes care of itself whilst you focus on flying. For RC enthusiasts in the UK and beyond who value convenience, safety and performance, this represents a complete game-changer in battery management.
Key Features
- Smart G2 Technology Integration — This battery features the latest generation Smart G2 technology, which automatically communicates charging parameters and battery health data to compatible Spektrum Smart chargers, eliminating manual programming and ensuring optimal charging every single time you plug in.
- 14.8V 4S Configuration — The four-cell lithium polymer configuration delivers 14.8 volts at full charge, providing the high voltage output required for demanding RC aircraft applications and high-performance aerobatic flying.
- 2900mAh Capacity — This substantial 2900 milliamp-hour capacity ensures extended flight times without excessive weight, perfectly balanced for air applications where both performance and aircraft handling are critical.
- 120C Discharge Rate — The impressive 120C continuous discharge rating means this battery can safely deliver up to 348 amps of continuous current (2900mAh × 120C), providing the explosive power needed for aerobatic manoeuvres, 3D flying and high-acceleration applications.
- IC3 Connector — This battery features the industry-standard IC3 connector, ensuring broad compatibility with most modern RC aircraft systems and allowing easy integration into existing RC setups across the UK and worldwide.
- Pro Series Optimisation — Unlike standard battery packs, Pro Series cells are specifically engineered to maintain higher voltage throughout the entire discharge cycle even under extreme amperage loads, meaning your aircraft maintains performance from the first second to the final moments of your flight.
- Integrated Memory Microchip — Each battery contains a sophisticated microchip that records critical information including battery brand, type, capacity, C-rating, individual cell voltages, operating temperature, and complete charge/discharge cycle history, giving you full transparency into your battery's condition.
- Error Logging and Safety Monitoring — The Smart system maintains a comprehensive error log tracking over-heat incidents, over-discharge events and over-charge situations, allowing you to identify potential issues before they become serious problems.
- Maintenance-Free Operation — With Smart technology handling all charging parameters automatically, these batteries are extraordinarily easy to maintain, ideal for busy RC pilots who want reliability without the hassle of complex battery management.
- Longer Battery Life — The combination of advanced cell chemistry and Smart monitoring results in significantly extended overall battery lifespan compared to conventional RC batteries, protecting your investment and ensuring consistent performance over hundreds of charge cycles.
- Compact Air-Optimised Design — Specifically crafted for RC air applications, this battery features a compact profile that fits tight spaces within modern aircraft whilst maintaining full performance, perfect for racing drones, competition aerobatic planes and space-conscious airframes.
Technical Performance
The SPM 14.8V 2900mAh 4S 120C Smart G2 Pro Air LiPo Battery represents cutting-edge lithium polymer battery engineering optimised specifically for RC aircraft. The 4S (four-cell) configuration delivers the 14.8 nominal voltage that modern brushless motors and ESCs demand for peak performance, whilst the 2900mAh capacity provides substantial energy storage in a compact footprint critical for air applications. The 120C discharge rating indicates this battery can safely deliver continuous current of 348 amps (calculated as 2900mAh × 1.2), providing the instant response and explosive acceleration that competitive RC pilots require for 3D flying, aerobatic sequences and high-energy flying styles. The Pro Series designation means these cells use advanced chemistry that maintains elevated voltage throughout the discharge cycle, even under extreme current draw, ensuring your aircraft performs consistently from launch to landing without the voltage sag that degrades performance in conventional batteries. The IC3 connector provides secure, reliable connection to aircraft systems whilst remaining compact. Built-in Smart technology continuously monitors cell voltages individually, operating temperature, and cycle count, storing this data in an integrated microchip. Spektrum's engineering has optimised the cell configuration to maximise capacity density—you get more power per cubic centimetre compared to standard packs, crucial when airframe space is genuinely limited. The combination of advanced cell chemistry, sophisticated monitoring electronics and aeronautical engineering makes this a premium battery for serious RC flyers throughout the UK and internationally who refuse to compromise on reliability or performance.
What's in the Box
- SPM 14.8V 2900mAh 4S 120C Smart G2 Pro Air LiPo Battery with IC3 connector
- Integrated Smart technology microchip with data logging capability
Frequently Asked Questions
- What does Smart G2 technology actually do and why should I care? — Smart G2 technology is a sophisticated microchip integrated into your battery that automatically communicates with Spektrum Smart chargers. When you connect the battery, it uploads all its charging parameters, health data, cell voltage information and cycle history to the charger. This means you never need to manually program charging rates or settings—the charger reads the battery's memory and charges it perfectly every single time. The system also maintains error logs tracking over-heat, over-discharge and over-charge incidents, allowing you to identify any battery issues before they become serious. For UK RC pilots managing multiple batteries across different aircraft, this automation is invaluable, eliminating guesswork and ensuring consistent charging practices.
- Why is this called a Pro Series battery and how is it different from standard Smart batteries? — Pro Series batteries feature advanced cell chemistry that allows manufacturers to pack more capacity into the same physical size compared to standard batteries. More importantly, Pro cells maintain significantly higher voltage throughout the entire flight, even under extreme amperage loads. This means your aircraft's motor receives consistent power from the first second to the final moments of your battery's discharge, preventing the performance degradation (voltage sag) that occurs with conventional batteries. For competitive RC flyers and those demanding maximum performance, this voltage consistency is critical for maintaining speed, acceleration and control authority throughout extended flights.
- Is the 120C discharge rate actually necessary, or can I use lower-rated batteries instead? — The 120C rating indicates this battery can safely deliver 348 amps continuous current, making it suitable for extremely demanding applications including 3D aerobatic flying, racing drones, and high-performance military-style aircraft. If your aircraft draws less current, a lower-rated battery would work, but understand that the 120C rating also reflects superior cell construction and higher-quality internal components that contribute to longevity and reliability. The higher rating essentially guarantees your battery won't become a performance limitation, and Smart G2 monitoring ensures you'll know if any problems develop. For serious RC pilots in the UK who fly frequently and demand consistency, investing in a proper 120C battery eliminates variables from your flying equation.
- Will this battery work with my existing RC charger, or do I need a Spektrum Smart charger? — Whilst this Smart battery can be charged on non-Smart chargers if you manually program the correct parameters, you'll miss out on the primary benefit of Smart technology—automatic parameter upload and comprehensive data logging. For optimal performance and safety, Spektrum strongly recommends using a Spektrum Smart charger, which reads your battery's integrated microchip and handles all charging parameters automatically. The Smart charger investment pays for itself through enhanced convenience, better battery longevity, and the peace of mind that comes from truly intelligent charging.
- How does the 2900mAh capacity compare to other 4S batteries, and what flight times should I expect? — 2900mAh is a substantial mid-range capacity for 4S batteries. Actual flight time depends entirely on your aircraft's motor size, ESC settings, flying style and payload. Aggressive 3D flying with constant high-throttle manoeuvres might yield 4-6 minutes of flight time, whilst smooth cruising could extend this to 8-12 minutes or longer. The Pro Series optimisation helps maintain consistent performance throughout the flight, meaning you'll utilise more of the battery's available energy compared to standard packs with voltage sag. For extended flight times, some pilots use multiple batteries and rotate them through charge cycles during a flying session.
- What is the IC3 connector and will it fit my aircraft? — IC3 (Integrated Connector 3) is a popular standardised connector used across many modern RC aircraft systems, particularly in Spektrum-compatible applications. It provides secure, reliable connection with excellent current-carrying capacity. However, you'll need to verify that your aircraft's main power lead features an IC3 connector. Many aircraft use IC5 connectors instead. If your aircraft uses a different connector type, you can use IC3 extension adapters or connector adapters to bridge compatibility, though this adds bulk. Always verify your aircraft's connector type before purchasing.
- How should I store this battery when I'm not flying? — Spektrum Smart batteries should be stored in a cool, dry location at around 50% state of charge (approximately 3.85V per cell). Before storing for extended periods, if your Smart charger has storage mode, use that setting to condition the battery to optimal storage charge. Avoid storing fully charged or fully discharged batteries, as both states stress the cells. Store at room temperature or slightly cooler, away from direct sunlight and moisture. If stored properly, Smart G2 batteries maintain their conditioning across extended storage periods, coming back to full performance when you're ready to fly again.
- Is this battery suitable for beginners, or should experienced pilots use it? — Whilst Smart technology actually makes this battery beginner-friendly through automatic charging, the 120C discharge rating and 14.8V configuration are designed for serious flying applications. Beginners should confirm their aircraft is designed to handle this voltage and current draw. If your aircraft is a basic trainer model or ultra-lightweight foam aircraft, a lower-rated 4S battery might be more appropriate. Conversely, if you're flying a performance aircraft that demands this specification, Smart technology's automation actually helps beginners by eliminating charging guesswork.
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 14.8V 2900mAh 4S 120C Smart G2 Pro Air LiPo Battery: IC3 O-SPMX-1067 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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