Overview
The Spektrum SPM 11.1V 4000mAh 3S Smart G2 LiPo Battery 30C represents the latest generation in intelligent battery technology for RC enthusiasts across the UK. Whether you're piloting RC cars, trucks, or other electric RC vehicles, this Smart G2 LiPo pack delivers reliable power with unprecedented convenience and safety features. The innovative Smart G2 technology transforms how you charge, monitor and maintain your batteries, making it an essential upgrade for any serious RC hobby enthusiast or weekend basher looking to simplify their charging routine.
What sets this 11.1V 3S battery apart from conventional LiPo packs is its integrated microchip and Smart connector system. When connected to a compatible Spektrum Smart charger, the battery automatically communicates its unique parameters, health status and balancing requirements—eliminating the need for a separate balance lead. This single-connection charging approach represents a major advancement in RC battery technology for the UK market, making it easier than ever to maintain peak performance and battery longevity across your entire RC fleet.
The 4000mAh capacity paired with the 30C continuous discharge rating makes this battery suitable for a wide range of RC applications, from backyard bashing to more demanding driving sessions. The thicker internal metal side plates provide enhanced protection for the cells and improved heat dissipation, ensuring your battery stays cool and performs consistently even during extended use. If you're searching for a reliable, user-friendly LiPo battery that takes the guesswork out of charging and battery management, the Spektrum Smart G2 is an excellent choice.
Key Features
- Single IC3 Connection Charging — Unlike traditional LiPo batteries that require both a main connector and a separate balance lead, the Smart G2 battery achieves balanced charging through just one innovative IC3 connector with an integrated data wire, making your charging routine faster and more straightforward.
- Integrated Microchip Memory — Every Smart G2 battery contains a microchip that stores vital information including battery brand, chemistry, cell count, 4000mAh capacity, C rating, temperature data, charge and discharge cycle counts, and internal resistance specifications, allowing you to make informed decisions about battery condition and suitability.
- Intelligent Auto Storage Discharge — The battery arrives factory-programmed to automatically discharge to a safe 3.90V storage voltage after 72 hours of inactivity, eliminating the need for manual storage management and extending overall battery life and performance with three times faster discharge rates compared to previous G1 Smart models.
- Health and Error Monitoring — The integrated microchip maintains a comprehensive error log tracking over-heat, over-discharge and over-charge incidents, providing you with critical safety data that helps ensure the battery is appropriate for your specific RC application.
- Enhanced Cell Protection — Thicker internal metal side plates protect the battery cells from punctures and impact damage during rough landings or crash scenarios, whilst also improving heat dissipation to maintain optimal operating temperatures during intense driving sessions.
- Automatic Charge Parameter Upload — When you connect the Smart G2 battery to a Spektrum Smart charger, charging parameters automatically transfer from the battery's memory to the charger, so you never need to manually input charge rates or preferences unless you choose to customise them.
- IC3 and EC3 Connector Compatibility — The IC3 connector is backwards compatible with EC3 style Spektrum Smart Chargers, offering flexibility if you're upgrading from older systems whilst maintaining full access to all Smart G2 features with compatible chargers.
- Fast Automatic Discharge Rate — The Smart G2 battery discharges at up to 1.5A to reach safe storage voltage, ensuring quick transitions to storage mode and reducing the time your battery sits in a partially charged state between charging sessions.
- User-Customisable Settings — Although the battery comes factory-programmed with optimal settings, you can adjust Auto Storage discharge preferences and charge rates based on your personal driving schedule and preferences through your Spektrum Smart charger.
Technical Performance
The Spektrum Smart G2 11.1V 4000mAh 3S LiPo battery delivers exceptional technical performance engineered specifically for demanding RC car and truck applications. The 11.1 volt nominal voltage (3.7V per cell across three cells in series) provides the power needed for responsive acceleration and consistent performance throughout the discharge cycle. The 4000mAh capacity offers substantial runtime, allowing extended driving sessions without frequent battery swaps—ideal for RC enthusiasts who want to maximise their track time or bashing sessions. The 30C continuous discharge rating ensures the battery can reliably deliver high currents for high-performance driving, delivering plenty of power for acceleration and sustained speed without voltage sag that would compromise vehicle performance.
Construction quality is paramount in this battery pack. The internal architecture features thicker metal side plates that serve dual purposes: they shield the delicate lithium polymer cells from punctures and damage during impacts, whilst simultaneously improving thermal management by dissipating heat away from the cells more effectively. This engineering approach extends battery lifespan and maintains consistent performance even when pushing the battery hard during competitive driving or aggressive bashing sessions. The Smart G2 design represents the culmination of Spektrum's battery engineering expertise, incorporating lessons learned from previous generations into a package that's simultaneously more robust and more user-friendly than conventional LiPo batteries available across the UK RC market.
What's in the Box
- One 11.1V 4000mAh 3S Spektrum Smart G2 LiPo Battery with IC3 connector
- Integrated microchip with safety and performance data storage
What You Need to Complete
- Spektrum Smart Charger (required for charging this battery—standard chargers cannot access Smart G2 features)
- RC vehicle compatible with 11.1V 3S LiPo batteries and IC3 or EC3 connectors
Frequently Asked Questions
- Do I need a special charger for the Spektrum Smart G2 battery? — Yes, this battery requires a Spektrum Smart charger to access all Smart G2 features and take advantage of its integrated microchip capabilities. Earlier Spektrum Smart chargers can be updated with G2 firmware available at spektrumrc.com, but standard RC chargers cannot unlock the battery's smart functionality.
- What does the integrated microchip do? — The microchip in every Smart G2 battery stores essential information including the battery's unique parameters, health metrics, charge and discharge history, temperature data, and an error log tracking any over-charge, over-discharge or over-temperature events, allowing you to monitor battery condition and lifespan.
- Why is there no separate balance lead? — The Smart G2 uses an innovative IC3 connector with an integrated data wire that communicates balancing information directly to your Smart charger, eliminating the need for a separate balance connector and making charging as simple as plugging in one cable.
- What is Auto Storage Discharge and why do I need it? — The battery automatically discharges to a safe 3.90V storage voltage after 72 hours of inactivity, which dramatically extends battery lifespan and prevents damage from extended periods at high charge states, all without any action required from you.
- How long does storage discharge take? — The Smart G2 discharges at up to 1.5A to reach safe storage voltage, which is three times faster than previous G1 Smart batteries, meaning your battery reaches storage condition more quickly.
- Is this battery suitable for beginners? — Yes, the Smart G2 is actually ideal for beginners because the Smart charger handles all the technical charging parameters automatically—you simply connect the battery and let the charger take care of the rest, with no need to understand balance charging or C ratings.
- What vehicles is this 3S 11.1V battery compatible with? — This battery is designed for RC cars and trucks that accept 11.1V 3S LiPo batteries with IC3 or EC3 connectors, which covers a broad range of modern electric RC vehicles across the hobby.
- Can I use this battery with an older Spektrum charger? — Older Spektrum Smart chargers may work with this battery if they support the G2 firmware update available at spektrumrc.com, but you should confirm compatibility before purchase.
- What does the 30C rating mean? — The 30C rating indicates the maximum continuous discharge rate; at 30C, this 4000mAh battery can safely deliver 120 amps continuously (4.0 Ah × 30C = 120A), providing plenty of power for high-performance driving without voltage sag.
- How do I know when my Smart G2 battery needs replacement? — The integrated error log tracks unhealthy events like over-charge, over-discharge and overheating incidents; if your Spektrum Smart charger reports excessive incidents or declining performance, the battery may be reaching end of life.
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 11.1V 4000mAh 3S Smart G2 LiPo Battery 30C: IC3 O-SPMX43S30 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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