Key Features
- Spektrum Smart Technology Makes Charging and Maintaining Batteries Easy
- Integrated Microchip Stores Unique Parameters for Each Battery
- IC3 and IC5 Connectors are Compatible with EC3 and EC5
- Save Time and Hassle, while Improving Battery Life
- Smart Discharge Allows Batteries to Automatically Discharge to a Safe Voltage
- Includes standard servo connector discharge lead for added convenience
- User Assignable Smart Discharge Allows Batteries to Automatically Discharge to a Safe Voltage
Feature Overview
You'll never have to set charge preferences for a Spektrum Smart battery until you want to. When a Spektrum Smart LiPo battery is connected to a Spektrum Smart charger, unique parameters and health of that Smart LiPo battery upload from the Smart memory microchip integrated into the battery. Through the charger, you can view and set preferences, such as charge rates, so that all you have to do to charge the pack every time is press the charger "Start" button. Smart technology takes care of the rest.
Every Smart LiPo battery is factory assembled with the next-generation IC3T or IC5T output connector that's conveniently compatible with older devices equipped with robust EC3T and EC5T connectors. You can use Smart Batteries with older systems, but only when connected to a Spektrum Smart device will all the benefits of Smart technology become obvious.
Spektrum Smart LiPo Batteries Store Unique Data, such as:
- Battery Brand
- Battery Type
- Battery Capacity
- Battery C Rating
- Individual Cell Voltage
- Battery Temperature
- Charge/Discharge Cycles
Spektrum Smart LiPo batteries also maintain an error log including the number of over-heat, over-discharge and over-charge incidents which can be helpful data in assuring that the battery you've chosen is right for the application. A Smart Battery uploads its charge parameters to a Spektrum Smart Charger automatically making charging as simple as pressing the "Start" button. The charge rate of every Smart Battery is customizable, allowing you to take full advantage of packs with faster charge ratings.
Spektrum Smart Receiver Packs are designed to provide optimal current to the most demanding receiver power systems and provides pilots and drivers all the benefits of Spektrum Smart Technology, all while remaining small and lightweight.
Video Overview
Overview
The SPM 4000mAh 2S 7.4V Smart LiPo Receiver Battery with IC3 connector represents the pinnacle of receiver battery technology for discerning RC enthusiasts across the UK. Manufactured by Spektrum, a recognised leader in RC power systems and electronics, this specialist receiver battery is engineered to deliver optimal current to the most demanding receiver power systems whilst remaining remarkably compact and lightweight. Whether you're piloting precision aircraft, controlling high-performance RC cars, or operating sophisticated trucks and buggies, this Smart LiPo battery provides the reliable power your receivers demand, coupled with intelligent battery management that makes charging and maintenance effortless.
What sets this battery apart in the crowded RC battery market is its integration of Spektrum Smart Technology — a revolutionary system that transforms how you manage and maintain your batteries. This isn't just another generic LiPo pack; it's a data-rich power solution that learns, adapts, and communicates with your charger to ensure optimal performance and extended lifespan. For RC enthusiasts seeking premium receiver batteries in the UK that combine reliability, intelligence, and ease of use, this Spektrum Smart LiPo receiver battery delivers exceptional value and performance.
The 4000mAh capacity provides substantial runtime for extended flying or driving sessions, whilst the 2S configuration (7.4V) makes it compatible with a vast range of universal receiver systems. The 15C discharge rating ensures snappy response and stable power delivery, even during demanding manoeuvres that test your receiver's processing capabilities and servo responsiveness. If you're serious about RC performance and want a battery that actively helps you maintain your equipment, this is the intelligent choice.
Key Features
- Spektrum Smart Technology — The integrated microchip in this battery stores unique parameters and health data about itself, automatically uploading this information to compatible Spektrum Smart chargers. This means you never have to manually input charge preferences again; simply press the charger's Start button and Smart technology handles everything else, saving you time and eliminating the guesswork from charging.
- Integrated Microchip for Data Storage — Each battery maintains a comprehensive data log including battery brand, type, capacity, C rating, individual cell voltages, temperature readings, and complete charge/discharge cycle counts. Beyond performance metrics, the microchip records an error log tracking over-heat, over-discharge, and over-charge incidents, providing valuable diagnostic information to help you make informed decisions about battery health and suitability for your application.
- IC3 Connector with Backward Compatibility — This battery features the next-generation IC3 connector, engineered from the ground up to provide superior connection quality, higher heat resistance, and effortless installation compared to older connector designs. Crucially, the IC3 connector is fully backward compatible with the popular EC3 connectors found on older systems, allowing you to use this Smart battery with legacy equipment whilst unlocking all Smart features when connected to Spektrum Smart devices.
- Smart Discharge Technology — LiPo batteries stored at full charge degrade over time, damaging the chemical integrity of lithium polymer cells. This battery solves that problem with programmable Smart Discharge, which automatically discharges your pack to a safe storage voltage within 12 to 240 hours of your choosing. This unique feature dramatically extends battery lifespan and maintains peak performance characteristics throughout the life of the pack.
- Customisable Charge Rates — The Smart memory microchip remembers your preferred charge rate settings, automatically populating these parameters every time you connect the battery to a compatible Spektrum Smart charger. You can adjust charge rates to take full advantage of faster-charging-capable packs, and your settings persist across charging sessions, eliminating repetitive programming.
- Servo Connector Discharge Lead — Included with this battery is a standard servo connector discharge lead (3.5 inches / 90mm long), providing added convenience for discharging and maintenance operations without requiring proprietary adapters.
- Universal Receiver Compatibility — Designed specifically as a receiver battery, this 7.4V pack is engineered to provide optimal current delivery to demanding receiver power systems across diverse RC platforms, making it a genuinely universal solution for aircraft, cars, trucks, and other RC vehicles requiring reliable receiver power.
Technical Performance
This Spektrum receiver battery represents excellence in engineering and real-world usability. With a capacity of 4000mAh and 2 cells in series (2S configuration), it delivers 7.4V nominal voltage — the standard voltage for most receiver systems in modern RC hobbyists' collections. The 15C discharge rating provides 60 amps of maximum discharge current (4.0Ah × 15C = 60A), ensuring responsive power delivery even when receiver servos demand sudden current increases during manoeuvres or corrections. The battery weighs just 230 grams (8.11 ounces) and measures a compact 86mm long × 34mm wide × 30mm tall, making it easy to fit into tight receiver compartments common in competition-grade RC cars and aircraft. The 13 AWG wire gauge ensures proper current carrying capacity without unnecessary bulk. Smart Watt Hours are rated at 14.8Wh, providing substantial energy density for extended flight times or driving sessions. Maximum charge current is rated at 1.5C (6.0 amps), allowing full charges in approximately one hour using compatible Spektrum Smart chargers. The soft-case construction protects against impacts whilst maintaining flexibility for mounting in confined spaces. LiPo chemistry (3.7V per cell) ensures consistent voltage delivery throughout discharge cycles, with charge protection circuitry integrated into the pack to prevent overcharge damage. This receiver battery comes with storage capability programming, allowing you to preserve the pack at optimal voltage when not in use. Whether you're running precision receiver systems in high-end competition aircraft across UK airfields, or powering critical receiver electronics in demanding off-road RC cars and buggies, this battery delivers the reliability and performance serious hobbyists demand.
What's in the Box
- SPM 4000mAh 2S 7.4V Smart LiPo Receiver Battery with IC3 connector
- Standard servo connector discharge lead (3.5 inches / 90mm)
- Product instruction manual
- Spektrum Smart Batteries Safety Sheet (multilingual)
- Battery Safety Sheet (multilingual)
Frequently Asked Questions
- Is this Spektrum Smart receiver battery compatible with my existing RC equipment? — Yes, this battery features the IC3 connector which is fully backward compatible with older EC3 connectors found on most established RC systems. You can use this Smart battery with any receiver system equipped with IC3 or EC3 connectors. However, you'll unlock all the advanced Smart features — automatic charging parameters, data logging, and smart discharge — only when connecting to a Spektrum Smart charger. With older chargers, it functions as a standard 7.4V LiPo receiver battery.
- How long does this battery take to charge? — Using a compatible Spektrum Smart charger at the maximum 1.5C charge rate, this 4000mAh battery charges fully in approximately one hour. The integrated microchip remembers your preferred charge rate, so subsequent charges are as simple as pressing the Start button without re-entering any parameters.
- What aircraft and RC vehicles is this battery suitable for? — This battery is specifically designed as a universal receiver battery, making it compatible with the vast majority of modern RC aircraft, RC cars, RC trucks, and other remotely controlled vehicles that use standard receiver connectors. Its 7.4V output is the industry-standard voltage for receiver systems, ensuring compatibility across thousands of RC platforms available to UK hobbyists.
- How does the Smart Discharge feature work? — After charging, you can programme your Spektrum Smart charger to automatically discharge this battery to a safe storage voltage between 12 and 240 hours after you've finished flying or driving. This prevents the battery from sitting at full charge for extended periods, which degrades lithium polymer cell chemistry. The automatic discharge extends your battery's overall lifespan and maintains performance characteristics.
- Will this battery work with non-Spektrum chargers? — This battery works with any standard LiPo charger capable of charging 2S (7.4V) packs. However, Smart features including automatic parameter upload, error logging, and Smart Discharge require a Spektrum Smart charger. Using this battery with standard chargers means you manually input charge parameters, but the battery itself functions perfectly as a conventional receiver LiPo.
- Is this suitable for beginners in RC hobbying? — Absolutely. In fact, this battery is particularly valuable for beginners because Smart Technology eliminates the complexity of manual battery programming. Once you input your preferences into a Spektrum Smart charger, subsequent charging requires only pressing a button. The integrated safety circuitry and error logging also provide peace of mind, and the data logging helps you understand your battery's health and history.
- What makes this better than a standard receiver battery? — The Spektrum Smart microchip transforms battery management from a manual, error-prone process into an intelligent system. You get comprehensive data logging (charge cycles, temperature history, voltage integrity), automatic charge parameter memory, user-programmable smart discharge to protect cells, and an error log tracking overcharge, overdischarge, and overtemperature incidents. These features combine to extend battery lifespan significantly compared to standard LiPo receiver packs.
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 4000mAh 2S 7.4V Smart LiPo Receiver Battery; IC3 O-SPMX40002SRX 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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