Gens Ace LiFe 2S 6.6V 2300mAh Transmitter Battery Futaba O-G2S2300-TX

• Model number: O-G2S2300-TX
• Brand: Gens Ace
• Battery type: Li-Fe (Lithium Iron Phosphate)
• Capacity: 2300mAh
• Voltage: 6.6V (2S1P configuration)
• Number of cells: 2S (2 cells in series, 1 in parallel)
• Nominal voltage per cell: 3.3V
• Fully charged voltage per cell: 3.6V
• Dead voltage per cell: 2.5V
• Storage voltage: 3.3V per cell nominal (6.6V total)
• Discharge rate: 1C
• Recommended charge rate: 0.2C
• Maximum charge rate: 0.5C
• Discharge connector: Futaba-type connector
• Balance connector: JST-XHR
• Length: 78mm
• Width: 41mm
• Height: 17mm
• Weight: 130g
• Compatible transmitters: Futaba 18SZ, Futaba 14SG, Futaba 10J, Futaba T8J
• Barcode: 6928493303511

Overview

The GENSACE LiFe 2S 6.6V 2300mAh Transmitter Battery with Futaba Connector (model O-G2S2300-TX) is a specialist Li-Fe power solution designed exclusively for handheld radio transmitters. Unlike standard RC car and truck batteries, this transmitter battery features a purpose-built chemistry and discharge profile optimised for the unique demands of radio equipment. Whether you're flying RC drones, operating RC buggies, or controlling RC crawlers across the UK, having a reliable transmitter battery is absolutely critical to maintaining signal integrity and flight time throughout your RC sessions.

Manufactured by Gens Ace, a recognised leader in RC battery technology, this LiFe battery pack delivers consistent power delivery with exceptional longevity. Li-Fe chemistry offers superior cycle life compared to traditional LiPo batteries, meaning you'll enjoy hundreds of charge cycles before the battery's performance begins to degrade. For serious RC enthusiasts and professional operators, this means lower cost per charge and more reliable performance over the lifespan of the battery. The 2300mAh capacity provides extended operating time between charges, allowing you to enjoy longer RC sessions without the frustration of dead transmitters mid-flight or mid-race.

The GENSACE LiFe transmitter battery is engineered with compatibility in mind, featuring genuine Futaba-type discharge connectors that mate perfectly with Futaba 18SZ, Futaba 14SG, Futaba 10J, and Futaba T8J transmitters. This makes it an ideal replacement battery for existing Futaba radio users across the UK, or a premium upgrade for those building a new RC system from scratch. RC Model Shop stocks this battery in our physical store in Walsall and online, ensuring you can access quality transmitter power quickly and conveniently.

Key Features

• Li-Fe Chemistry — Lithium Iron Phosphate battery technology delivers superior cycle life and stability compared to standard LiPo batteries, meaning you can recharge this battery hundreds of times whilst maintaining consistent performance and safety margins.
• 2300mAh Capacity — The substantial 2300mAh capacity ensures extended transmitter runtime, allowing you to operate your RC car, boat, drone or other RC equipment for longer periods without needing to recharge mid-session.
• 6.6V 2S Configuration — The 2-cell configuration (2S1P) delivers 6.6V nominal voltage, perfectly matched to Futaba transmitter specifications and optimised for handheld radio operation where consistent voltage regulation is critical.
• Low 1C Discharge Rate — Unlike high-performance racing batteries, this transmitter battery features a conservative 1C discharge rate specifically designed for the steady, predictable power draw of radio transmitters, ensuring maximum safety and stability.
• Futaba Discharge Connector — Pre-installed Futaba-type discharge connector ensures direct compatibility with Futaba 18SZ, Futaba 14SG, Futaba 10J and Futaba T8J transmitters without requiring adapters or modifications.
• JST-XHR Balance Lead — Integrated JST-XHR balance connector allows safe and accurate charging using compatible Li-Fe chargers, protecting the battery cells and extending overall battery lifespan through balanced charging.
• Compact Dimensions — Measuring just 78 × 41 × 17mm, this transmitter battery fits neatly into transmitter cases and is light enough at 130g for comfortable handheld operation throughout long RC flying or driving sessions.
• Intelligent Charge Rate Specifications — The battery should be charged at 0.2C recommended rate (0.5C maximum), providing clear guidance for safe charging practices that maintain battery health and safety over thousands of charge cycles.

Technical Performance

The GENSACE LiFe 2S 6.6V 2300mAh transmitter battery represents a significant engineering achievement in portable RC power delivery. Li-Fe chemistry, also known as Lithium Iron Phosphate, has been selected specifically because it offers superior thermal stability and longevity compared to lithium polymer alternatives. Where standard LiPo batteries might degrade noticeably after 300-500 charge cycles, this Li-Fe pack maintains its performance characteristics across substantially more cycles, making it a genuinely economical choice for frequent RC operators across the UK. The 1C discharge rate specification means the battery can safely deliver 2.3 amps of current continuously — perfect for the modest power requirements of radio transmitters but completely unsuitable for RC car ESCs or other high-current applications. This conservative rating is intentional and demonstrates that Gens Ace has engineered this battery with transmitter-specific requirements in mind, rather than trying to create a one-size-fits-all solution. The 6.6V nominal voltage (3.3V per cell for 2S configuration) sits within the exact operating window of Futaba 18SZ, 14SG, 10J and T8J radio systems, ensuring optimal performance and longevity. The physical construction weighs just 130g and measures 78mm long by 41mm wide by 17mm tall, making it ergonomic enough for extended handheld use without fatigue. The integrated JST-XHR balance lead enables precise cell balancing during charging, ensuring both cells receive identical voltage and capacity — critical for maximising Li-Fe battery lifespan and preventing premature degradation of weaker cells.

What's in the Box

• GENSACE LiFe 2S 6.6V 2300mAh Transmitter Battery
• Futaba-type discharge connector (pre-installed)
• JST-XHR balance lead

Frequently Asked Questions

• Is the GENSACE LiFe 2S 6.6V 2300mAh transmitter battery compatible with my Futaba radio? — This battery features genuine Futaba discharge connectors and is explicitly designed for Futaba 18SZ, Futaba 14SG, Futaba 10J and Futaba T8J transmitters. If your transmitter model is listed above, compatibility is guaranteed. For other Futaba transmitter models, we recommend contacting our expert team at RC Model Shop in Walsall before purchase to confirm compatibility.
• What is the difference between Li-Fe and LiPo transmitter batteries? — Li-Fe (Lithium Iron Phosphate) chemistry offers substantially better cycle life, typically maintaining performance across 1000+ charge cycles compared to 300-500 cycles for LiPo batteries. Li-Fe also provides superior thermal stability, meaning the battery runs cooler and safer during operation. The trade-off is that Li-Fe has a slightly lower energy density, but for transmitters where extended runtime is prioritised over maximum weight reduction, Li-Fe is the superior choice. This GENSACE pack is also more forgiving if accidentally stored partially discharged, as Li-Fe chemistry is more resistant to damage from storage voltage variations.
• How long does the GENSACE LiFe transmitter battery take to charge? — Recommended charge rate is 0.2C, which means this 2300mAh battery should charge at 0.46A for approximately 5 hours of charge time. Maximum safe charge rate is 0.5C (1.15A), which would provide charging in approximately 2 hours. We recommend using a charger with dedicated Li-Fe support and never exceeding the 0.5C maximum rate, as faster charging can stress the battery and reduce overall lifespan. Many users prefer the slower 0.2C charge rate for maximum cell balancing and longevity.
• Will this battery work with the Sky RC T200 charger? — The GENSACE LiFe 2S 6.6V 2300mAh battery can be charged using compatible chargers with Li-Fe support. The Sky RC T200 charger can work with this battery when using the appropriate charging cables. We recommend the SCH-MK5922 charging cable as a suitable option for this combination. Always verify your charger supports Li-Fe chemistry before attempting to charge, as charging LiPo profiles onto Li-Fe batteries can cause damage.
• What are the storage voltage specifications for this Li-Fe battery? — Li-Fe batteries have different voltage specifications compared to LiPo batteries. The nominal storage voltage for Li-Fe is 3.3V per cell (6.6V for this 2S pack). The battery is considered fully charged at 3.6V per cell (7.2V for 2S), and dead at 2.5V per cell (5.0V for 2S). For best results, store this battery at its nominal 3.3V per cell voltage (6.6V total) in a cool, dry location. Unlike LiPo batteries which must be stored at 3.85V per cell, Li-Fe batteries are much more forgiving and resistant to damage from long-term storage at nominal voltage.
• Is the GENSACE LiFe 2S 6.6V 2300mAh transmitter battery suitable for beginners? — Absolutely. This battery is an excellent choice for beginners because Li-Fe chemistry is inherently safer and more forgiving than LiPo. The conservative 1C discharge rate prevents accidental over-discharge scenarios, and the chemistry is resistant to damage from storage mistakes or charging errors. If you're new to RC hobbies and purchasing your first radio transmitter, this GENSACE battery provides peace of mind alongside reliable performance.
• How much does this transmitter battery weigh? — The GENSACE LiFe 2S 6.6V 2300mAh battery weighs 130 grams. This relatively light weight makes it comfortable to hold in your hands throughout extended RC flying sessions or ground-based RC operations, without causing fatigue or cramping during long days at the track or field.
• What charger do I need for this battery? — You need a charger that specifically supports Li-Fe chemistry and features a JST-XHR balance connector input. Do not attempt to charge this battery using LiPo profiles, as different voltage curves and termination points will damage the battery. Compatible chargers include professional hobby chargers with Li-Fe support settings and dedicated Li-Fe rapid chargers. The SCH-MK5922 cable is confirmed compatible with Sky RC T200 chargers for this battery.

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 LiFe 2S 6.6V 2300mAh Tx with Futaba O-G2S2300-TX 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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