Gens Ace 2S 7.4V 3500mAh LiPo Receiver Battery Futaba Connector G2S3500-RX

• Battery Type: Lithium Polymer (LiPo)
• Cell Configuration: 2S1P (Two cells in series, one parallel)
• Nominal Voltage: 7.4V
• Capacity: 3500mAh
• Connector Type: Futaba
• Length: 96mm
• Width: 44mm
• Depth: 14mm
• Weight: 140g
• Chemistry: LiPo
• Format: Straight
• Supplier ID: B-RX-3500-2S1P
• Part Number: O-G2S3500-RX
• Barcode: 6928493305713
• Brand: Gens Ace
• Suggested Compatibility: Traxxas Slash, Traxxas Emaxx (version dependent), HPI Strada XB 1/10 RTR Electric Buggy, Kyosho GP 4WD Racing Truck

Overview

The Gens Ace Li-Po 2S 7.4V 3500mAh Receiver Battery Pack is a premium compact power solution designed specifically for RC car enthusiasts in the UK who demand reliable, consistent performance from their receiver systems. This high-quality LiPo battery pack delivers the perfect balance of capacity and compact dimensions, making it an ideal upgrade or replacement for a wide range of popular ready-to-run RC models. Whether you're piloting a Traxxas Slash, an Emaxx, an HPI Strada XB, or a Kyosho GP 4WD Racing Truck, this receiver pack provides the stable, dependable power your receiver needs to maintain signal integrity and performance throughout extended driving sessions.

Gens Ace has established itself as a trusted manufacturer of high-performance lithium polymer batteries for the RC hobby, and this 2S receiver pack exemplifies their commitment to quality engineering and reliability. The 7.4V two-cell configuration provides the perfect voltage for most modern receiver systems, whilst the generous 3500mAh capacity ensures you can enjoy extended running times without frequent battery swaps. The battery arrives ready to use with a Futaba connector pre-fitted, meaning you can get your RC car UK-ready and out on the track or basher course immediately without any additional soldering or modifications.

Compact dimensions combined with intelligent weight distribution make this receiver pack a smart choice for maintaining your vehicle's handling characteristics. At just 140 grams, this battery won't negatively impact your model's performance or weight balance, allowing you to focus on what matters most – enjoying your RC experience to the fullest.

Key Features

• Pre-fitted Futaba Connector — The battery arrives with a genuine Futaba connector already soldered and ready to use, eliminating the need for additional work and ensuring reliable, secure connection to your receiver every single time you charge and deploy the pack.
• Optimal 2S LiPo Configuration — The two-cell series configuration delivers a nominal voltage of 7.4V, which is the industry-standard voltage for receiver systems in most ready-to-run RC cars, providing consistent power delivery and excellent compatibility across the broadest range of vehicles.
• Generous 3500mAh Capacity — The substantial 3500 milliamp-hour capacity ensures your receiver has plenty of power reserves, extending your run times significantly and reducing the frequency with which you need to pause and recharge, allowing you to spend more time driving and less time waiting.
• Compact, Space-Saving Design — Measuring just 96mm in length, 44mm in width, and 14mm in depth, this receiver pack fits easily into confined battery compartments and receiver boxes across virtually all modern electric RC cars, trucks and buggies without requiring modifications to your chassis.
• Lightweight Construction — At only 140 grams, this battery pack adds minimal additional weight to your vehicle, preserving the original handling balance and performance characteristics you expect from your ready-to-run RC model.
• Professional LiPo Chemistry — Built using proven lithium polymer cell technology, this battery delivers consistent voltage output, maintains charge reliability over hundreds of cycles, and provides the high discharge rate necessary for servo responsiveness and receiver function.
• UK Ready to Use — This battery arrives fully assembled with no additional components needed, making it perfect for RC hobbyists in the UK who want immediate, hassle-free compatibility with their existing receiver systems.

Technical Performance

The Gens Ace 2S 7.4V 3500mAh receiver battery represents a significant step forward in power delivery for RC receiver systems. Built with high-quality lithium polymer cells, this pack delivers stable 7.4 volts across its discharge curve, ensuring your servos respond consistently and your receiver maintains perfect signal clarity throughout extended driving sessions. The 3500mAh capacity provides substantial energy reserves compared to smaller receiver packs, meaning longer periods between charges and more uninterrupted driving time for competitive racers and weekend bashers alike. The compact physical dimensions of 96 x 44 x 14mm ensure this battery fits within the receiver boxes and battery compartments of virtually every modern electric RC car on the market, from small-scale bashers to dedicated race machines. The Futaba connector is widely recognised as the industry-standard connection type for receiver systems, and having this pre-installed saves valuable time and eliminates potential connection issues. The 140-gram weight is deliberately engineered to be as light as possible whilst maintaining structural integrity and reliable power delivery, ensuring your vehicle's weight distribution and handling characteristics remain optimised for peak performance. Whether you're running a brushless motor system or managing multiple servos on a complex multi-channel RC setup, this receiver pack provides the consistent, reliable power your equipment demands.

What's in the Box

• Gens Ace 2S 7.4V 3500mAh LiPo Receiver Battery Pack
• Pre-fitted Futaba Connector

Frequently Asked Questions

• What RC cars and trucks is this receiver battery compatible with? — This 2S 7.4V receiver pack is suggested for use with a wide range of popular ready-to-run RC models including Traxxas Slash, Traxxas Emaxx (version dependent), HPI Strada XB 1/10 RTR electric buggy, Kyosho GP 4WD racing truck, and many other vehicles that accept 7.4V receiver power with Futaba connectors. Always verify your specific vehicle's receiver voltage requirements before purchase to ensure compatibility.
• Does this battery come ready to use straight from the box? — Yes, this receiver pack arrives with a Futaba connector pre-fitted, meaning you can connect it directly to your receiver without any additional soldering, modifications, or assembly work required. Simply charge it according to LiPo charging best practices and begin driving.
• What charger do I need for this LiPo battery? — You will need a dedicated LiPo-compatible battery charger capable of handling 2S lithium polymer cells. Most modern RC battery chargers sold in the UK support 2S LiPo charging; check your charger's specifications to confirm compatibility. Never attempt to charge LiPo batteries with standard lead-acid chargers.
• How long will this battery keep my receiver powered during a typical driving session? — The 3500mAh capacity provides excellent runtime for receiver operations, typically supporting several hours of continuous driving for most RC cars, though exact duration depends on your specific vehicle's servo load, terrain, and driving style. The generous capacity means fewer charging interruptions during a session.
• Is this suitable for beginners to the RC hobby? — Absolutely. Receiver batteries are essential consumables for any RC car owner, and this Gens Ace pack is an excellent choice for newcomers to the hobby. The pre-fitted Futaba connector means no technical knowledge of soldering or electrical connections is required – simply plug it in and go. However, you should familiarise yourself with basic LiPo safety practices including proper charging, storage, and handling.
• What makes LiPo batteries better than the older NiMH receiver batteries? — LiPo batteries deliver superior performance in nearly every way: they provide more consistent voltage output throughout their discharge cycle, they charge significantly faster, they hold their charge longer when stored, and they deliver better performance-per-weight ratio. Modern RC cars are engineered around LiPo technology, making them the standard choice across the hobby.
• Can I use this battery in my RC transmitter instead of the receiver? — Whilst this pack is engineered specifically for receiver applications, it can technically power a transmitter if your transmitter accepts 7.4V Futaba-connector power. However, Gens Ace manufactures dedicated transmitter packs with specifications optimised for transmitter demands, so you may achieve better battery life and performance with a purpose-built transmitter pack.

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 Li-Po 2S 7.4V 3500mAh Rx with Futaba 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.

We want to make sure your delivery goes smoothly, so here are some important details about our service:

• For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
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• For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.