O-G3S0850-80X3

• Brand: Gens Ace
• Model Number: O-G3S0850-80X3
• Battery Type: Lithium Polymer (LiPo)
• Configuration: 3S1P (3 cells in series, 1 parallel)
• Nominal Voltage: 11.1V (3S)
• Fully Charged Voltage: 12.6V
• Capacity: 850mAh
• Discharge Rate: 80C continuous
• Maximum Continuous Discharge Current: 68A (850mAh × 80C)
• Connector Type: XT30
• Case Type: Soft case
• Weight: 73g
• Dimensions (Length × Width × Height): 58 × 30 × 22mm
• Barcode: 6928493316801
• Intended Applications: F5J performance motorgliders, small-scale electric helicopters, RC drones, lightweight RC aircraft
• Charge Rate: 1C standard (0.85A), up to 2C (1.7A) supported on compatible chargers
• Recommended Storage Condition: Cool, dry location at 50-60% charge capacity
• Expected Cycle Life: 300-500+ full charge cycles with proper care

Overview

The Gens Ace Li-Po 3S 11.1V 850mAh 80C battery with XT30 connector is a premium lightweight power solution designed specifically for competitive F5J and performance motorgliders, as well as small-scale RC helicopters and drones where minimal mass is critical to performance. This compact 3S1P (three cells in series, single parallel) lithium polymer battery pack delivers exceptional energy density in a footprint measuring just 58 x 30 x 22mm, making it perfect for tight battery bays and slim fuselages found in modern RC aircraft. Whether you're flying F5J competition gliders in the UK or operating lightweight drone platforms, this Gens Ace battery provides the power delivery and flight time your model demands without adding unnecessary weight to your airframe.

Weighing just 73 grams, the Gens Ace 850mAh 3S LiPo represents the sweet spot between capacity and weight for performance-orientated RC enthusiasts. The true 80C continuous discharge rate ensures responsive power delivery during aggressive climbs and efficient energy transfer throughout your flight envelope, giving you the confidence to push your RC model to its limits. Gens Ace is recognised globally as one of the finest battery manufacturers in the RC hobby, building their reputation on solid construction, consistent performance and remarkable durability through countless charge cycles. This battery is manufactured to exacting standards and delivers the reliability you need whether you're a weekend basher or a serious competition pilot.

The XT30 connector is the industry standard for lightweight RC aircraft and small electric helis, offering excellent contact reliability whilst maintaining a compact profile. This battery is ideal for RC enthusiasts in the UK and beyond who demand high-performance power with minimal compromise on weight, and it works seamlessly with any RC aircraft, drone or helicopter equipped with an XT30 charging port or balance connector.

Key Features

• True 80C Continuous Discharge Rate — This battery delivers a genuine 80C discharge capability, which means it can safely supply 68 amps of continuous current (850mAh × 80C = 68A). This high discharge rate ensures snappy acceleration, responsive climbs and efficient power delivery throughout your flight, critical for competition F5J flying and performance motorgliders where every millisecond counts.
• Compact Lightweight Construction at 73g — By weighing just 73 grams, this battery adds minimal mass to your RC aircraft or helicopter, preserving the light weight essential for optimal climb rate, flight duration and handling characteristics in small-scale models where every gram impacts performance.
• 3S Configuration (11.1V Nominal) — The three-cell series configuration provides 11.1 volts nominal voltage (12.6V fully charged), offering the ideal balance of power output and runtime for F5J gliders and performance motorgliders whilst remaining compatible with standard 3S capable electronic speed controllers and charging systems.
• XT30 Connector — The XT30 connector is the preferred connector choice for lightweight RC aircraft and small-scale electric helicopters, offering excellent electrical contact reliability, secure mechanical retention and a compact size that fits cleanly into restricted battery bays without requiring bulky adapters.
• Premium Soft Case — The battery arrives in a protective soft case that shields the cells during transport and storage, helping to extend the lifespan of your battery pack by protecting against physical damage, moisture ingress and accidental punctures during handling or storage in your RC model.
• 850mAh Capacity — This 850mAh capacity strikes an excellent balance for competition F5J flying and performance motorgliders, providing sufficient energy for extended flight times whilst maintaining the lightweight profile critical for altitude performance and thermal soaring capabilities.
• Proven Gens Ace Quality — Gens Ace batteries are manufactured to the highest standards and have earned an outstanding reputation among RC enthusiasts for durability, safety and consistent performance across thousands of charge cycles, making this a trusted choice for competitive RC flying across the UK and internationally.

Technical Performance

The Gens Ace 850mAh 3S LiPo battery is engineered with premium lithium polymer cell chemistry that delivers exceptional energy density without compromising safety or longevity. The 80C continuous discharge rate means this battery can sustain demanding power draws throughout your entire flight session, providing the stable voltage delivery that high-performance RC aircraft require for optimal motor performance and handling. The battery's compact dimensions of 58 x 30 x 22mm make it compatible with modern RC aircraft design trends that prioritise lightweight construction, and the 73-gram weight ensures minimal impact on your model's total mass budget. The XT30 connector features gold-plated contacts that resist oxidation and corrosion, ensuring reliable electrical connection flight after flight, whilst the internal cell configuration is balanced and protected by modern safety circuitry to prevent over-discharge, over-charge and thermal runaway conditions. This 3S1P battery pack is fully compatible with any charger featuring XT30 connectivity or standard 3S balance charging ports, making it straightforward to integrate into existing RC hobby setups. The soft case protection and quality construction ensure this battery maintains its performance characteristics over many seasons of RC flying, representing excellent value for the serious RC enthusiast seeking reliable power for F5J competition flying, performance motorgliders, RC helicopters or lightweight drone applications.

What's in the Box

• Gens Ace 850mAh 3S 11.1V 80C LiPo Battery Pack
• XT30 connector fitted and ready to use
• Protective soft case for transport and storage

Frequently Asked Questions

• Is this battery suitable for F5J and performance motorglider flying in the UK? — Yes, absolutely. The Gens Ace 850mAh 3S LiPo is specifically designed and recommended for F5J competition gliders and performance motorgliders, particularly small sizes. The 73-gram weight is ideal for minimising wing loading and maximising climb rate, whilst the 80C discharge rate ensures consistent power delivery during thermal exploitation and sustained climbs. This makes it an excellent choice for UK-based F5J competitors and weekend soaring enthusiasts.
• What is the maximum continuous discharge current for this battery? — The battery's 80C rating means it can deliver a maximum continuous discharge of 68 amps (calculated as 850mAh × 80C = 68A). This is more than sufficient for small-scale RC aircraft and helicopter motors, ensuring you won't experience voltage sag or performance loss during aggressive flying.
• How do I charge this 3S LiPo battery safely? — This battery requires a compatible lithium polymer charger with XT30 connector or standard 3S balance charging capability. We recommend using a quality RC battery charger set to 3S LiPo mode with a charging current of approximately 0.85 amps (1C rate) for standard charging, or up to 1.7 amps (2C rate) for faster charging if your charger supports it. Always use the balance charging lead to ensure all three cells charge evenly and safely.
• What is the difference between this 850mAh battery and the 750mAh or 900mAh Gens Ace 3S options? — The 850mAh capacity sits in the middle range of Gens Ace's 3S LiPo offerings. The 750mAh version is slightly lighter at around 67 grams, making it ideal if absolute minimum weight is the priority, whilst the 900mAh provides additional flight time and energy capacity for slightly longer duration flights, though at a small weight penalty. The 850mAh represents the optimal balance for most F5J gliders and performance motorgliders.
• Is this battery waterproof or suitable for wet conditions? — Whilst the soft case provides basic protection against moisture, lithium polymer batteries are not designed to be waterproof or submerged. The battery should be kept dry during storage and operation. If you fly in damp conditions, ensure the battery bay of your aircraft is properly sealed to prevent moisture ingress.
• How many charge cycles will this battery last? — With proper care and correct charging practices, Gens Ace LiPo batteries typically maintain good performance for 300-500 full charge cycles or more, depending on usage patterns, storage conditions and charging methodology. Storing the battery in a cool, dry location at partial charge (around 50-60% capacity) between flying sessions will help maximise overall lifespan.
• What safety features does this battery include? — The battery includes internal protection circuitry to prevent over-discharge, over-charge and excessive discharge rates. However, lithium polymer batteries should always be treated with respect, charged in a fire-safe location away from flammable materials, and monitored during charging. Never leave a charging battery unattended, and immediately stop charging if you notice any unusual heat, smell or bulging of the battery case.

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 3S 11.1V 850mAh 80C with XT30 O-G3S0850-80X3 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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