Gens Ace 3S 11.1V 800mAh 45C LiPo Battery with BEC Connector O-G3S0800-45B

• Brand: Gens Ace
• Model Number: O-G3S0800-45B
• Barcode: 6928493321249
• Battery Type: Lithium Polymer (LiPo)
• Cell Configuration: 3S (3 cells in series)
• Nominal Voltage: 11.1V
• Capacity: 800mAh
• Discharge Rating: 45C
• Maximum Continuous Discharge Current: 36A
• Connector Type: BEC
• Case Type: Soft case
• Length: 58mm
• Width: 30mm
• Height: 23mm
• Dimensions: 58 x 30 x 23mm (L x W x H)
• Weight: 70g

Overview

The GENSACE Li-Po 3S 11.1V 800mAh 45C with BEC connector is a compact, high-performance lithium polymer battery pack designed for RC enthusiasts who demand reliable power in tight spaces. Whether you're flying a small RC helicopter, powering a compact RC car, or installing a battery in a space-constrained model, this Gens Ace battery delivers the performance and portability you need. The 3S (11.1V nominal) configuration provides excellent voltage characteristics for a wide range of electric RC applications, whilst the 45C discharge rating ensures robust power delivery for demanding performance scenarios. At just 70 grams with soft case construction, this battery represents an ideal choice for weight-conscious RC builds where every gram counts.

Gens Ace has built a reputation as a trusted manufacturer of quality lithium polymer batteries for the RC hobby market. This particular model combines their engineering expertise with practical design choices that matter to UK RC enthusiasts. The BEC connector provides straightforward, reliable connections to compatible RC equipment, making setup quick and hassle-free. Whether you're a seasoned RC competitor running precision races, a weekend basher enjoying recreational flying and driving, or someone just discovering the exciting world of RC for the first time, this battery delivers consistent performance and value.

The soft case construction keeps overall weight down whilst protecting the cells from minor impacts during transport and use. Measuring just 58 x 30 x 23mm, this pack fits neatly into tight installations where standard battery compartments would be too restrictive. The 800mAh capacity strikes an important balance between power density and reasonable flight or run times, making it suitable for a variety of small to medium RC models across different platforms and applications.

Key Features

• 3S LiPo Configuration — The 3-cell lithium polymer setup delivers 11.1V nominal voltage, which is the industry standard for this class of battery and ensures compatibility with the widest possible range of RC equipment and chargers you'll find in the UK RC market.
• 45C Continuous Discharge Rating — This specification means the battery can safely deliver up to 36 amps of continuous current (800mAh × 45C), providing sufficient power for fast acceleration, responsive control, and sustained high-performance operation across demanding flying and driving scenarios.
• 800mAh Capacity — The 800 milliamp-hour capacity provides a practical balance between weight, size and runtime, giving you adequate flight or run time for recreational sessions without the bulk and weight of larger capacity packs.
• BEC Connector — The BEC (Battery Eliminator Circuit) connector is a standard connection type widely used across RC models, meaning you can connect this battery to your RC equipment with confidence, knowing it will work with most compatible receivers and speed controllers designed for this connector type.
• Soft Case Construction — Unlike hard plastic or aluminium cases, the soft case design minimises weight whilst still providing adequate protection during transport and normal use, making this battery ideal for weight-sensitive applications where every gram impacts performance.
• Compact Dimensions — Measuring 58 x 30 x 23mm (length, width, height), this battery is designed specifically for tight installations where standard-sized batteries simply won't fit, making it perfect for small RC helicopters, compact RC planes, and densely packaged RC vehicles.
• 70 Gram Weight — The lightweight construction helps maintain proper weight distribution and centre of gravity in your RC model, which is especially important for flight characteristics in RC aircraft and handling dynamics in RC vehicles.
• Part Number O-G3S0800-45B — This specific model number identifies the exact battery configuration, ensuring you can easily find replacements, compatible chargers, and accessories designed specifically for this Gens Ace pack.

Technical Performance

The GENSACE Li-Po 3S 11.1V 800mAh 45C battery represents solid engineering focused on delivering reliable performance in compact form. The 45C discharge rating provides sufficient current delivery for responsive, dynamic performance without sacrificing battery longevity or safety. The 3S cell configuration is the most common voltage standard in the RC hobby, meaning you'll find vast compatibility across chargers, balance boards, and RC equipment throughout the UK RC hobby community. The soft case construction uses flexible polymer materials that compress slightly under load but provide excellent cell protection compared to rigid cases of equivalent weight. At 70 grams, this battery maintains the critical weight-to-power ratio necessary for small RC platforms where component weight directly influences performance, manoeuvrability, and flight time. The 800mAh capacity is ideally suited to smaller RC models, micro quadcopters, compact RC helicopters, and lightweight RC aircraft where larger batteries would compromise weight distribution and performance. The BEC connector interface ensures straightforward integration with the vast majority of RC receivers, speed controllers, and servos designed for this connector standard. Gens Ace's manufacturing quality means consistent cell performance and reliable voltage delivery throughout the discharge cycle, ensuring your RC model maintains responsive handling and performance from the moment you start until the battery reaches safe depletion levels. The dimensions of 58 x 30 x 23mm are specifically engineered to fit into confined spaces whilst maintaining standard cell geometry for safety and reliability.

What's in the Box

• GENSACE 3S LiPo battery pack (800mAh 45C 11.1V)
• Soft protective case
• BEC connector pre-installed

Frequently Asked Questions

• Is the GENSACE 3S 800mAh 45C battery suitable for beginners? — Yes, this battery is excellent for beginners because the 3S voltage configuration is the most common standard in RC hobby shops across the UK, meaning you'll have no trouble finding compatible chargers, balance boards, and RC equipment. The 800mAh capacity is forgiving for learning purposes, and the soft case design is durable enough for the inevitable bumps and drops that come with learning. The 45C discharge rating provides responsive performance without being extreme, making it predictable and controllable for developing pilots and drivers.
• What RC models does the GENSACE 3S 800mAh battery work with? — This battery is compatible with any RC model that features a BEC connector and is designed for 3S LiPo power. This includes many small RC helicopters, compact RC planes, micro quadcopters, lightweight RC cars and buggies, and small scale RC drones. Always check your RC model's battery specifications and connector type before purchasing to ensure compatibility.
• How long will the GENSACE 3S 800mAh battery last? — Runtime depends entirely on the current draw of your specific RC model. Lighter models with efficient motors may achieve 15-20 minutes of flight or run time, whilst higher-powered models may see 8-12 minutes. The 45C discharge rating means the battery can deliver sufficient current for responsive performance without premature voltage sag, maintaining consistent power delivery throughout the discharge cycle.
• Is this battery compatible with standard RC chargers? — Yes, the 3S LiPo configuration means this battery is compatible with any RC charger designed for 3S lithium polymer packs, which represents the vast majority of dedicated RC battery chargers available in the UK hobby market. The BEC connector is industry standard, so charging connections are straightforward.
• Why choose the soft case instead of a hard case? — The soft case design on this Gens Ace battery saves weight compared to rigid plastic or aluminium cases, which is particularly important in small RC models where component weight directly affects performance, handling, and flight time. The flexible case still provides adequate protection during normal transport and use, making it an excellent choice for weight-conscious builds.
• What is the difference between 45C and other discharge ratings? — The C rating indicates how much current the battery can safely discharge continuously. A 45C rating on an 800mAh battery means it can deliver up to 36 amps continuously (800mAh × 45 = 36A). Higher C ratings support more extreme performance applications, whilst this 45C rating balances responsiveness with battery longevity and cost-effectiveness.
• Can I use this battery in cold weather? — Lithium polymer batteries are temperature-sensitive. Avoid charging below 10°C or discharging in temperatures below 0°C. Cold weather reduces battery voltage and performance, so store your GENSACE battery indoors before and after winter outdoor sessions. Always allow the battery to reach room temperature before charging.

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 800mAh 45C with BEC O-G3S0800-45B 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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