- Model Number: SPMX184S50
- Brand: Spektrum
- Application: Aircraft
- Battery Type: LiPo (Lithium Polymer)
- Battery Chemistry: 3.7V per cell
- Battery Voltage: 14.8V nominal
- Number of Cells: 4S (4 cells in series)
- Capacity: 1800mAh
- Energy Storage: 26.64 watt hours
- Continuous Discharge Rating: 50C
- Maximum Burst Discharge Rate: 50C
- Maximum Charge Rate: 5C (9A)
- Normal/Standard Charge Current: 1.8A
- Normal/Standard Charge Rate: 1C
- Connector Type: IC3
- Balance Connector: G2 Smart Battery
- Charge Protection Circuitry: Yes
- Hard Case: No
- Wire Gauge: 12 AWG
- Product Length: 4.48 inches (114mm)
- Product Width: 1.35 inches (34mm)
- Product Height: 0.94 inches (24mm)
- Product Weight: 7.40 oz (210g)
- Internal Metal Side Plates: Thicker reinforced design
- Auto Storage Discharge Voltage: 3.90V per cell
- Auto Storage Discharge Time: 72 hours of inactivity
- Auto Storage Discharge Rate: Up to 1.5A (3 times faster than previous generation)
- Integrated Microchip: Yes, stores battery parameters and error logs
- Data Storage Includes: Battery brand, battery type, capacity, C rating, individual cell voltage, battery temperature, charge cycles, discharge cycles, internal resistance
- Error Log Tracking: Over-heat incidents, over-discharge incidents, over-charge incidents
- Connector Compatibility: IC3 and IC5 connectors compatible with EC3 and EC5 styles
- Backwards Compatibility: Yes, compatible with EC3 connectors
- Required Charger: Spektrum G2 Smart Charger or earlier Spektrum Smart Charger with G2 update
- California Prop 65 Warning: Applies
- Customer Rating: 4 out of 5 stars
Overview
The Spektrum 14.8V 1800mAh 4S 50C Smart G2 LiPo Battery represents the latest generation in intelligent battery technology for RC enthusiasts across the UK. Whether you're piloting a high-performance RC aircraft or driving a competitive RC car, this Smart G2 battery delivers the reliable power and advanced features that serious hobbyists demand. The Smart G2 series has been engineered to take the guesswork out of battery management, making it an ideal choice for both experienced pilots and drivers who want to maximise their RC experience without constant manual maintenance.
What sets this Spektrum Smart G2 battery apart from standard LiPo packs is its revolutionary integrated microchip technology. Rather than juggling multiple connectors and balance leads, the Smart G2 system consolidates everything into one seamless IC3 connection. This innovative approach means you can achieve perfect battery balance and charge your pack with nothing more than a single connection to your Spektrum Smart charger. The result is simpler, safer charging that requires far less technical knowledge whilst delivering superior performance and longevity to your RC vehicle, whether it's a competitive racing machine or a weekend basher.
At 14.8V with a 1800mAh capacity, this 4S LiPo pack provides the perfect balance of voltage and energy storage for a wide range of mid-sized RC applications. The impressive 50C continuous discharge rating ensures you have the sustained power delivery needed for aggressive flying or driving, whilst the integrated safety features and automatic storage discharge protocol mean your battery practically takes care of itself when it's not in use.
Key Features
- 50C Continuous Discharge Rating — This powerful continuous discharge rate delivers the high-performance power output that pilots and drivers need for competitive flying and driving, ensuring your RC vehicle has the sustained energy to handle aggressive manoeuvres and demanding conditions without voltage sag.
- Smart G2 Technology with Single IC3 Connection — The innovative IC3 connector integrates all charging and balancing data into one simple connection, eliminating the need for a separate balance lead and making the charging process dramatically simpler and more intuitive than traditional multi-connector systems.
- Balance Charge Through Data Wire — Balancing information travels automatically through the data wire within the IC3 connector, so your Smart charger receives all the voltage information it needs from your Spektrum Smart G2 battery without any additional cables or connections.
- Integrated Microchip Stores Battery Parameters — Every Smart G2 battery contains a memory microchip that automatically records essential information including battery brand, chemistry, cell count, capacity, C rating, temperature data, and the complete charge and discharge cycle history, allowing you to make informed decisions about battery maintenance and replacement.
- Automatic Smart Storage Discharge — Your Smart G2 battery comes factory-programmed to automatically discharge itself to a safe storage voltage of 3.90V after 72 hours of inactivity, protecting cell chemistry and extending the overall lifespan of the pack without any user intervention required.
- Faster Auto Discharge at Up to 1.5A — The improved storage discharge rate is three times faster than previous generation Smart batteries, meaning your pack reaches safe storage voltage more quickly whilst delivering better long-term performance and reliability.
- Error Logging for Predictive Maintenance — The integrated microchip maintains a comprehensive error log recording the number of over-heat, over-discharge, and over-charge incidents, helping you understand battery health and make the most informed decisions about when to retire or service a pack.
- Thicker Internal Metal Side Plates — Smart G2 50C LiPo batteries feature reinforced internal construction with thicker metal side plates that improve heat dissipation during high-demand discharge and provide additional protection for cells against punctures during rough landings and impact situations.
- Backwards Compatible with EC Connectors — The IC3 connector design is fully compatible with older EC3 equipment, giving you flexibility to use Smart G2 batteries with your existing RC systems if desired, though Smart charging requires a compatible Spektrum Smart charger.
- Premium 12 AWG Wire Gauge — Heavy-gauge 12 AWG wiring reduces resistance and ensures maximum power delivery from the pack to your RC vehicle's power systems, critical for maintaining performance during high-current draw applications.
Technical Performance
The Spektrum Smart G2 14.8V 1800mAh 4S LiPo battery represents sophisticated engineering designed specifically for demanding RC applications. With a voltage of 14.8V (4 cells at 3.7V nominal), this pack delivers the ideal power range for mid-sized RC aircraft and vehicles that require sustained performance. The 1800mAh capacity provides 26.64 watt hours of energy storage, a specification that balances weight efficiency with adequate runtime for most competitive and recreational flying and driving sessions. The 50C continuous discharge rating means the battery can safely deliver 90 amps of continuous current (1800mAh × 50C = 90A), making it suitable for high-performance brushless motors and demanding driving styles. The 5C maximum charge rate of 9A (1800mAh × 5C = 9A) allows reasonably quick charging whilst maintaining cell safety, and the standard 1C charge rate of 1.8A provides a conservative charging option for those who prefer maximum longevity. Physical dimensions measure 114mm in length, 34mm in width, and 24mm in height, with a total weight of 210 grams, making this a compact yet substantial pack for its capacity. The hard case construction is absent on this model, indicating a soft-case design that prioritises weight savings whilst the thicker internal metal side plates provide the durability needed for real-world use. Smart G2 technology integration means the battery communicates its status wirelessly through the IC3 connector's data wire, eliminating the traditional multi-conductor balance lead whilst improving reliability and simplifying the user experience for RC enthusiasts across the UK using compatible Spektrum Smart charging systems.
What's in the Box
- Spektrum 14.8V 1800mAh 4S 50C Smart G2 LiPo Battery with IC3 connector
- Integrated microchip with factory programming
What You Need to Complete
- Spektrum G2 Smart Charger (or earlier generation Spektrum Smart Charger with G2 update, available from spektrumrc.com)
- RC vehicle compatible with IC3 or EC3 connectors
Frequently Asked Questions
- What charger do I need for the Spektrum Smart G2 battery? — You must use a Spektrum G2 Smart Charger, or you can update an earlier generation Spektrum Smart Charger with the G2 firmware update available at spektrumrc.com. Smart G2 batteries cannot be charged with standard non-Smart chargers or older charger models. The Smart charger communicates with the integrated microchip in the battery to automatically configure the correct charging parameters.
- Do I need a balance lead for this battery? — No, the Spektrum Smart G2 battery completely eliminates the need for a separate balance lead. All balancing information travels through the data wire integrated into the IC3 connector itself, so a single connection is all you need. This is one of the major advantages of Smart G2 technology for UK RC enthusiasts who want simpler, faster charging without cluttering their setup with multiple cables.
- How long will this battery take to charge? — At the standard 1C charge rate of 1.8A, a full charge from empty would theoretically take one hour. However, the battery supports charging at up to 5C (9A), which would reduce charging time to approximately 12 minutes, though this faster rate may be less ideal for maximum battery longevity. Your Spektrum Smart charger will use the charge rate programmed into the battery's microchip unless you manually adjust it.
- What does the automatic storage discharge do? — Your Smart G2 battery arrives factory-programmed to automatically discharge itself to a safe storage voltage of 3.90V per cell after 72 hours of inactivity. This automatic feature protects the chemical integrity of the LiPo cells and extends the overall lifespan of the battery without requiring you to remember to manually discharge it. You can modify this auto-discharge setting through your Spektrum Smart charger if you prefer different timing.
- Can I use this battery with my older RC equipment? — The IC3 connector is backwards compatible with EC3 equipment, so you can physically connect this battery to vehicles with EC3 connectors. However, to take full advantage of the Smart G2 features, you will need a compatible Spektrum Smart charger. Without a Smart charger, you won't be able to access the advanced balancing, health monitoring, and automatic storage discharge features.
- What information does the integrated microchip store? — The microchip records comprehensive data including battery brand, battery type, capacity, C rating, individual cell voltages, battery temperature readings, the total number of charge cycles, the total number of discharge cycles, and internal resistance measurements. Additionally, it maintains an error log recording any incidents of overheating, over-discharge, or over-charging, helping you assess battery health and make informed maintenance decisions.
- Is this battery suitable for beginners? — Whilst the Smart G2 battery itself is very beginner-friendly thanks to its simple single-connector charging system and automatic maintenance features, you will need a compatible Spektrum Smart charger and an RC vehicle designed for 4S LiPo batteries. The 50C discharge rating and 14.8V voltage make this a performance-oriented pack best suited to pilots and drivers with at least some experience. Absolute beginners should consult with an RC specialist to ensure this battery matches their specific vehicle requirements.
- How does the Smart G2 compare to standard LiPo batteries? — Unlike standard LiPo batteries that require manual voltage checking, separate balance leads for charging, and no automatic maintenance features, the Smart G2 battery integrates all of this functionality into a single intelligent system. The microchip automatically communicates with your charger, balance charging happens through one connector, and the battery discharges itself to safe storage voltage automatically. This makes Smart G2 significantly more convenient and safer for UK RC enthusiasts who want intelligent battery management.
- What is the watt-hour capacity? — This 14.8V 1800mAh battery stores 26.64 watt hours of energy (14.8V × 1.8Ah = 26.64Wh), which falls well within the allowable limits for air transport in most jurisdictions, though you should always verify current regulations before flying with LiPo batteries.
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 1800mAh 4S 50C Smart G2 LiPo Battery: IC3 O-SPMX184S50 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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