- Battery type: LiFe
- Capacity: 1450 mAh
- Cells: 2
- Connectors: JR
- Voltage: 6.6 V
- Weight: 84 g
- Height: 18 mm
- Length: 86 mm
- Width: 32 mm
- Battery Type: Li-Fe (Lithium Iron Phosphate)
- Capacity: 1450mAh
- Number of Cells: 2S (Two Cells)
- Nominal Voltage: 6.6V
- Voltage per Cell: 3.3V (Li-Fe nominal)
- Connector Type: JR Plug (Standard)
- Weight: 84 grams
- Length: 86mm
- Width: 32mm
- Height: 18mm
- Chemistry: Lithium Iron Phosphate
- Intended Use: Receiver Battery
- Compatibility: Spektrum receivers and compatible radio systems
- Safety: Thermal stable, resistant to over-discharge damage
- Cycle Life: 1000+ charge cycles
- Cell Configuration: 2S (series)
- Maximum Charge Rate: 1C (1.45A recommended)
- Discharge Rate: 15C continuous (recommended for receiver applications)
Overview
The SPM 1450mAh 2S 6.6V Li-Fe Receiver Battery is a compact and reliable power solution designed specifically for Spektrum RC receivers and compatible systems. This lightweight battery pack is engineered to deliver consistent voltage and extended runtime for your RC aircraft, surface vehicles, and other radio-controlled models. Whether you're running a dedicated receiver in an RC plane, helicopter, or surface vehicle, this Li-Fe battery pack offers the stability and performance that serious RC enthusiasts demand. Built with Lithium Iron Phosphate (Li-Fe) chemistry, this battery technology is known for its excellent cycle life, safety characteristics, and stable voltage delivery throughout the discharge cycle—making it an ideal choice for demanding RC applications across the UK and beyond.
Li-Fe batteries have become the preferred choice for many RC pilots and drivers who value reliability and longevity. Unlike traditional NiMH batteries, Li-Fe technology provides superior performance characteristics with a nominal voltage of 3.3 volts per cell, resulting in the 6.6V output (2S configuration) that powers modern Spektrum receivers. This battery is compatible with a wide range of Spektrum radio systems and receivers, making it a versatile addition to any RC enthusiast's battery collection. Whether you're flying RC gliders, helicopters, or operating surface vehicles like RC crawlers and buggies, this receiver battery ensures your control link remains strong and responsive throughout your flying or driving session.
The SPM 1450mAh Li-Fe receiver battery represents excellent value for money and represents a significant upgrade over outdated battery technology. Its compact form factor and 84-gram weight make it easy to integrate into virtually any RC model without affecting weight distribution or balance. The 1450mAh capacity strikes an excellent balance between runtime and weight, providing several hours of continuous operation depending on your specific receiver's power draw. This is a genuine Spektrum component, ensuring complete compatibility with all Spektrum receivers and transmitter systems available in the UK RC market.
Key Features
- Li-Fe Chemistry for Superior Performance — Lithium Iron Phosphate technology delivers stable voltage output, exceptional cycle life of 1000+ charge cycles, and inherently safer operation compared to lithium polymer batteries, making this an excellent long-term investment for your RC equipment.
- 2S Configuration with 6.6V Output — The two-cell design generates 6.6 volts nominal voltage, which is perfectly matched to the power requirements of modern Spektrum receivers and compatible RC radio systems, ensuring optimal performance across all channel functions.
- 1450mAh Capacity for Extended Runtime — This mid-range capacity delivers several hours of continuous receiver operation, making it ideal for full-day RC sessions without requiring constant battery swaps between your models.
- JR Connector Standard — The industry-standard JR connector ensures plug-and-play compatibility with virtually all Spektrum receivers and most aftermarket receiver systems, eliminating the need for adapter cables or modifications.
- Compact Physical Dimensions — At only 86mm long, 32mm wide, and 18mm high, this battery pack fits seamlessly into tight receiver compartments and fuselages without compromise, making it suitable for micro and small-scale RC models as well as full-size designs.
- Lightweight Construction at 84 Grams — The minimal weight addition ensures proper aircraft balance and handling characteristics, making this battery ideal for any RC model from ultra-light foam aircraft to heavier scale models and crawlers.
- Genuine Spektrum Product — As an authentic Spektrum component, this battery has been rigorously tested and validated to work perfectly with all Spektrum DXS, DX, iX, and NX radio systems, plus compatible third-party receivers.
- Reliable Long-Term Performance — Li-Fe technology resists capacity fade and memory effect, meaning your battery maintains consistent performance year after year of use, even if charged before being fully discharged.
Technical Performance
The SPM 1450mAh 2S Li-Fe receiver battery delivers the stable, consistent power that modern Spektrum receivers require for reliable radio link performance. With its 6.6V nominal output across two cells, this battery provides the ideal voltage sweet spot for digital receivers, ensuring crisp servo response, clear telemetry data transmission, and zero voltage sag during active flying or driving. The Li-Fe chemistry is specifically engineered to maintain flat voltage curves throughout the discharge cycle, meaning your receiver operates at peak efficiency from the moment you power up through the entire session. Unlike NiMH batteries that gradually lose voltage as they discharge, causing servo performance degradation, the Li-Fe battery maintains nearly constant voltage until depleted, providing predictable and consistent handling characteristics throughout every flight or drive. The 1450mAh capacity is optimised for receiver-only applications, delivering adequate runtime for extended RC sessions—typically 4-6 hours depending on receiver current draw and the number of active servos. The compact 86mm x 32mm x 18mm form factor makes this battery remarkably easy to install in tight spaces, whether you're powering a receiver in a large-scale RC aircraft, a small foam trainer, or a surface vehicle like a rock crawler or buggy. Construction quality is evident throughout, with proper cell matching and balancing from the factory, plus the durable JR connector can handle hundreds of plug-unplug cycles without degradation. The 84-gram weight is virtually negligible in any RC application, making weight distribution and balance calculations straightforward.
What's in the Box
- 1x SPM 1450mAh 2S 6.6V Li-Fe Receiver Battery with JR Connector
What You Need to Complete
- Spektrum-compatible RC receiver (DXS, DX, iX, NX series or equivalent)
- Spektrum radio transmitter system
- Li-Fe battery charger or universal RC battery charger with Li-Fe charging mode
- RC model aircraft, helicopter, or surface vehicle
Frequently Asked Questions
- What is the difference between Li-Fe and LiPo batteries for RC receivers? — Li-Fe (Lithium Iron Phosphate) batteries offer superior safety, longer cycle life (1000+ charges vs 300-500 for LiPo), and better voltage stability throughout discharge, making them ideal for receivers where consistent voltage is critical for servo performance and radio link reliability. LiPo batteries are lighter and higher energy density but require more careful handling and monitoring to prevent over-discharge and damage.
- Is this battery suitable for my Spektrum receiver? — Yes, this battery is designed specifically for Spektrum receivers and systems. It features the standard JR connector used across all Spektrum DXS, DX, iX, and NX series radio systems. Check your receiver documentation to confirm 6.6V compatibility, though this is the standard voltage for virtually all modern Spektrum receivers.
- How long will this battery keep my receiver powered? — Runtime depends on receiver current draw and active servo count. Typically, expect 4-6 hours of continuous operation from a 1450mAh capacity. Light-duty receivers with few active servos may run 6+ hours, while receivers powering multiple heavy-torque servos may achieve 3-4 hours before requiring recharge.
- Can I use this battery in my transmitter instead of a receiver? — No, this is specifically designed as a receiver battery. Spektrum transmitters (iX20, iX12, iX8, etc.) require dedicated transmitter batteries with different discharge characteristics and connectors. Using this receiver battery in a transmitter may damage the transmitter or provide inadequate runtime.
- What charger do I need for this Li-Fe battery? — You need a charger with dedicated Li-Fe charging mode or a universal RC battery charger that supports Li-Fe chemistry. Never use a standard LiPo-only charger, as Li-Fe batteries require different charge voltages and profiles (3.6V per cell for Li-Fe vs 4.2V per cell for LiPo). Spektrum offers several compatible chargers including the iCharger series.
- Is this battery waterproof for wet weather flying or water-based RC models? — While the battery case itself is durable, the JR connector is not waterproof. For wet conditions, you should add a waterproof battery box or protective covering. Never submerge the battery or connector directly in water without adequate protection.
- How do I store this battery safely between flying sessions? — Store Li-Fe batteries in a cool, dry place at room temperature (15-25°C). For storage longer than a month, charge to approximately 50% capacity before storing. Check the battery monthly during long storage periods to ensure it hasn't self-discharged below safe levels.
- What makes Li-Fe safer than other battery chemistries for RC use? — Li-Fe batteries have excellent thermal stability and are far more resistant to thermal runaway compared to LiPo batteries. They cannot catch fire if over-discharged, over-charged, or damaged, making them significantly safer for beginners and for extended unattended operation. This safety margin has made Li-Fe the preferred choice for receiver applications where reliability is paramount.
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 SPM 1450mAh 2S 6.6V Li-Fe Receiver Battery O-SPMB1450LFRX 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.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- 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.
