Gens Ace G-Tech 4000mAh 4S 14.8V 30C LiPo Battery EC5 O-GT4S4000-30E5

• Brand: Gens Ace
• Model Number: O-GT4S4000-30E5
• Product Type: LiPo Battery Pack
• Cell Configuration: 4S1P (four cells in series)
• Nominal Voltage: 14.8V
• Capacity: 4000mAh
• Discharge Rate (Continuous): 30C
• Maximum Discharge Current: 120A (4000mAh × 30C)
• Recommended Charge Rate: 1–3C
• Connector Type: EC5
• Length: 136mm
• Width: 42mm
• Height: 29.5mm
• Weight: Approximately 375–379 grams
• Case Type: Soft case (included)
• Energy Density: High (optimised capacity-to-weight ratio)
• Internal Resistance: Low IR (provides stable voltage until end of mission)
• Technology: Gens Ace G-Tech (enhanced cell balancing and chemistry)
• Quality Certifications: ISO9001, ISO14001
• Warranty: 1 year manufacturer warranty
• Recommended Applications: HobbyZone 50E and 110E, Multiplex Habu, Funjet, multirotors, hexacopters, octocopters
• Battery Chemistry: Lithium Polymer (LiPo)
• Simultaneous Discharge: Stable discharge capability across multiple cells

Overview

The Gens Ace G-Tech Soaring 4000mAh 14.8V 30C 4S LiPo battery with EC5 connector is a high-performance power solution designed for serious RC enthusiasts who demand reliability and consistent power delivery. This 4-cell lithium polymer battery is engineered to provide the stable voltage and responsive discharge characteristics that RC pilots and drivers expect, whether you're flying fixed-wing aircraft, operating multirotors, or powering other RC platforms that require dependable energy. With its compact dimensions and lightweight construction, this battery integrates seamlessly into weight-sensitive RC applications where every gram counts towards optimal performance.

Built by Gens Ace, a manufacturer renowned for developing advanced lithium polymer battery technology adapted specifically for UAV and RC vehicle applications, this G-Tech Soaring pack combines practical performance with excellent value for money. The battery represents a proven choice for UK RC hobbyists and professional operators alike who seek batteries manufactured to stringent quality standards. Whether you're a seasoned RC enthusiast or building your first serious RC setup, this Gens Ace battery delivers the dependable power that keeps your models flying or running smoothly from launch to landing.

The Gens Ace G-Tech Soaring line has earned recognition within the RC community for delivering consistent performance across extended flying sessions and demanding operational conditions. This particular configuration—4000mAh capacity, 14.8V nominal voltage across four cells, and 30C continuous discharge rating—positions it as an excellent choice for 50E and 110E class fixed-wing models, the Habu platform, Funjet trainers, and a wide range of multirotors including hexacopters and octocopters. If you're seeking a reliable 4S LiPo for your RC car, drone, or aircraft UK collection, this battery represents trusted performance at a competitive price point.

Key Features

• 4S 14.8V Configuration — This four-cell setup provides the ideal voltage for numerous RC applications including electric aircraft, multirotors, and high-performance RC platforms, delivering the power curve that modern brushless systems demand whilst maintaining stable discharge characteristics throughout the flight envelope.
• 4000mAh Capacity — The 4000 milliamp-hour capacity offers substantial runtime for extended RC sessions, allowing pilots and drivers to complete multiple flight patterns, pattern routines, or operational missions before requiring a recharge, maximising your hobby time between charging cycles.
• 30C Continuous Discharge Rating — This discharge rate of 30C means the battery can safely deliver 120 amps of continuous current (4000mAh × 30 = 120A), providing the responsive throttle response and power delivery characteristics required by modern brushless motor systems without thermal stress or voltage sag during demanding manoeuvres.
• EC5 Connector — The XT90 variant EC5 connector provides secure, reliable power connections that resist accidental disconnection whilst offering superior contact geometry compared to earlier connector standards, ensuring consistent power transfer and enhanced safety during operation.
• G-Tech Technology — Gens Ace's proprietary G-Tech enhancement represents advanced battery chemistry and internal cell balancing technology, enabling stable simultaneous discharge from multiple cells and delivering dependable voltage stability throughout the entire discharge cycle until your mission is complete.
• Low Internal Resistance (Low IR) — The advanced cell chemistry minimises internal resistance, maintaining stable voltage output right through to the end of your flying session, preventing the voltage sag that degrades performance in the critical final minutes of operation.
• Compact Dimensions — Measuring just 136 × 42 × 29.5mm, this battery fits into tight battery compartments designed for 4S packs, allowing integration into weight-sensitive RC models without requiring airframe modification or compromising centre of gravity.
• Lightweight Design — At approximately 375–379 grams, this battery achieves excellent energy density for its capacity, delivering maximum flight time without excessive weight penalty that would reduce climb performance and responsiveness in RC aircraft and multirotors.
• Flexible Charge Rate (1–3C) — The recommended 1–3C charge rate provides flexibility: slower charging at 1C (4 hours) for field events where charging infrastructure is limited, or faster charging at 3C (1.3 hours) when turnaround time is critical, extending your operational flexibility.
• ISO9001 and ISO14001 Certification — Gens Ace and its manufacturing partners maintain internationally recognised quality management and environmental standards, ensuring consistent product quality, safety compliance, and responsible manufacturing practices throughout the battery production process.
• 1-Year Manufacturer Warranty — Gens Ace backs this battery with comprehensive warranty coverage, providing confidence in your purchase and demonstrating the manufacturer's commitment to product reliability and customer satisfaction across the RC hobby market.
• Soft Case Included — The battery arrives in a protective soft case, safeguarding the pack during transport and storage, reducing the risk of accidental damage and extending battery service life through proper care and organisation.

Technical Performance

The Gens Ace G-Tech Soaring 4000mAh 14.8V 30C 4S battery represents a mature evolution in LiPo battery design, engineered through extensive testing across the spectrum of modern RC platforms. The 30C continuous discharge rating delivers approximately 120 amps of current, sufficient to power demanding brushless motor systems ranging from large-scale fixed-wing aircraft to high-performance multirotors. The four-cell 4S configuration produces a nominal voltage of 14.8V (3.7V per cell), which aligns perfectly with the voltage requirements of contemporary brushless ESC (Electronic Speed Controller) systems rated for 4S operation. The battery's internal chemistry, enhanced through Gens Ace's G-Tech technology, maintains remarkably stable voltage delivery throughout the discharge cycle—a critical characteristic that prevents the voltage sag which degrades motor torque, responsiveness, and overall flight performance during demanding manoeuvres or sustained high-power operations. The low internal resistance specification ensures that the battery continues delivering full power right through the final moments of the discharge cycle, maximising effective mission duration. At 375–379 grams, the battery achieves excellent weight efficiency relative to its 4000mAh capacity, providing flight time comparable to heavier competitors whilst reducing structural stress on airframes and improving climb performance. The compact 136 × 42 × 29.5mm form factor integrates into purpose-designed battery compartments in modern RC aircraft and multirotors without requiring any physical modification. Manufacturing compliance with ISO9001 and ISO14001 standards reflects meticulous quality control throughout the production process, resulting in consistent cell matching, precise capacity tolerances, and reliable electrical characteristics across the entire product batch. The flexible 1–3C charge rate accommodates both field events requiring rapid turnaround charging and home workshop sessions where optimal cell conditioning is prioritised.

Recommended Applications

• HobbyZone 50E and 110E fixed-wing trainer aircraft
• Multiplex Habu and Funjet electric trainer platforms
• Hexacopter and octocopter multirotor systems
• Quadcopter and other multirotors requiring 4S power
• Electric RC aircraft and gliders with 4S compatible systems
• High-performance RC platforms requiring stable 14.8V power delivery

What's in the Box

• Gens Ace G-Tech Soaring 4000mAh 14.8V 30C 4S1P LiPo battery pack
• EC5 connector (factory-installed)
• Protective soft carrying case

What You Need to Complete

• LiPo-compatible battery charger with 4S charging capability (minimum 3A recommended for optimised charging)
• RC model, aircraft, or multirotor with EC5 connector compatibility
• LiPo-rated battery charging safe bag or safety container for charging operations
• Appropriate XT90 or EC5 charging lead if your charger does not include this connector

Frequently Asked Questions

• What RC aircraft and multirotors is the Gens Ace G-Tech Soaring 4000mAh suitable for? — Gens Ace specifically recommends this battery for HobbyZone 50E and 110E trainer aircraft, the Multiplex Habu and Funjet platforms, and various multirotors including hexacopters and octocopters. However, you must verify that your specific model features an EC5 connector and is rated for 4S (14.8V) power. Check your aircraft or multirotor's technical documentation for battery compatibility specifications before purchase.
• Is the Gens Ace G-Tech Soaring 4000mAh 14.8V 30C battery suitable for beginners? — This battery suits beginners operating trainer aircraft like the HobbyZone 50E or 110E, which are specifically designed as training platforms. However, all LiPo battery operation requires proper safety knowledge: safe charging procedures, temperature monitoring, proper storage practices, and the use of dedicated LiPo charging safety containers. First-time LiPo users should thoroughly understand charging safety before operating any LiPo battery system.
• How long does it take to charge the Gens Ace G-Tech Soaring 4000mAh battery? — At the recommended 1–3C charge rate, charging time varies: charging at 1C (4 amps for this 4000mAh battery) requires approximately 4–5 hours, whilst charging at 3C (12 amps) reduces charging time to approximately 1.3–1.5 hours. Slower charging generates less heat and may extend battery lifespan, whilst faster charging provides convenience for back-to-back flying sessions. Your charger must support 4S LiPo charging and provide appropriate current-limiting capability.
• What connector type does this battery feature? — The Gens Ace G-Tech Soaring 4000mAh 14.8V 30C battery includes a factory-installed EC5 connector. The EC5 is an XT90-family connector providing robust, secure connections that resist accidental disconnection during flight or operation. Verify that your RC model features an EC5-compatible connector before purchase. Many modern RC aircraft, multirotors, and electric RC vehicles use EC5 as standard, but some older models may require different connectors.
• How does the 30C discharge rate affect performance? — The 30C continuous discharge rating indicates this battery can safely deliver 120 amps of current (calculated as 4000mAh × 30C = 120A) without thermal stress or dangerous voltage sag. This discharge capacity suits brushless motor systems with high power demands, providing responsive throttle control and consistent power delivery during aggressive manoeuvres. Motors drawing less than 120A will operate within the battery's designed parameters with excellent performance characteristics.
• What is the difference between the G-Tech version and earlier Gens Ace Soaring batteries? — The G-Tech enhancement represents Gens Ace's advanced battery chemistry and internal cell balancing technology, providing superior stability during simultaneous discharge from multiple cells and maintaining consistent voltage throughout the mission. The manufacturer specifies that the G-Tech version provides improved performance over the earlier GEA40004S30E5 non-G-Tech version, though both serve similar applications. The current production model O-GT4S4000-30E5 features the G-Tech enhancement.
• Is the Gens Ace G-Tech Soaring 4000mAh battery waterproof? — Whilst the battery pack itself features weather-resistant construction, LiPo batteries are not designed for submersion or direct water exposure. If your RC model experiences water contact, immediately cease operation and dry all electrical components thoroughly before recharging or operating the battery again. The protective soft case helps maintain battery integrity during transport and storage in varying ambient conditions.
• What safety precautions should I follow with this LiPo battery? — Always charge this battery in a dedicated LiPo safety charging bag or container to contain any potential cell failure. Monitor the battery temperature during charging—it should remain warm but not hot to the touch. Never operate the battery at temperatures below 0°C or above 40°C. Store the battery at room temperature in a cool, dry location, preferably in a fireproof container. Follow your charger's safety procedures precisely and never leave the battery unattended during charging operations.
• What is the battery weight and how does this affect my RC model? — The Gens Ace G-Tech Soaring 4000mAh battery weighs approximately 375–379 grams. This weight directly impacts your RC model's performance: heavier batteries reduce climb performance and responsiveness in fixed-wing aircraft but extend flight duration. For trainer aircraft like the HobbyZone 50E or 110E, this battery weight falls within design specifications and provides excellent flight time without performance degradation. Always verify that your specific RC model is rated for this battery weight.
• Can I use this 4S battery in a model designed for 3S batteries? — No—never use a 4S (14.8V) battery in a model specified for 3S (11.1V) operation. The higher voltage will cause immediate damage to the electronic speed controller and potentially create a fire hazard. Similarly, do not use 3S batteries in 4S-rated systems as this results in inadequate power delivery. Always match the battery cell count precisely to your model's specifications.

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 GENSACE Li-Po G-Tech 4S 14.8V 4000mAh 30C Soaring with EC5 O-GT4S4000-30E5 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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