Overview
The SPM 3.7V 10500mAh 1S Li-Ion Transmitter Battery is the genuine stock replacement battery for Spektrum iX20 20-Channel DSMX Transmitters. Whether you're an experienced RC car enthusiast in the UK or just getting started with radio-controlled vehicles, having a reliable, high-capacity transmitter battery is essential for uninterrupted flying or driving sessions. This official Spektrum battery ensures your transmitter maintains peak performance and provides the extended runtime you need for competitive racing, casual bashing, or professional RC operations.
As an authorised Spektrum retailer, RC Model Shop stocks this genuine OEM battery to keep your transmitter powered and ready for action. The 10,500mAh capacity delivers impressive endurance, meaning you can spend more time controlling your RC model and less time waiting for your radio to recharge. Whether you're piloting an RC aircraft, operating an RC car, or managing any DSMX-equipped transmitter, this battery is engineered to deliver consistent voltage and reliable performance from the first flight to the last.
This Li-Ion battery represents Spektrum's commitment to quality and compatibility, designed specifically for the iX20 transmitter platform. With its generous capacity and proven LiIon technology, it's the perfect choice for RC enthusiasts across the UK who demand dependable power delivery and extended operational time without compromise.
Key Features
- 10,500mAh High Capacity — The substantial 10,500mAh capacity ensures extended runtime between charges, allowing you to manage longer RC flying sessions or multiple races without needing to swap batteries mid-operation. This is particularly valuable for competitive drivers and pilots who need consistent power throughout demanding events.
- 1S LiIon Chemistry — The single-cell LiIon (3.3V per cell) design provides stable, dependable voltage output with the reliable charge retention and cycle life that modern RC operations demand. LiIon technology offers superior performance compared to older battery chemistries whilst maintaining safety and longevity.
- Official Spektrum OEM Part — This is the genuine stock replacement battery designed and manufactured by Spektrum specifically for the iX20 20-Channel DSMX Transmitter. Using authentic OEM batteries ensures perfect compatibility, optimal charging characteristics, and warranty protection for your investment.
- Compact, Portable Design — With dimensions of 3.34 inches in length, 2.75 inches in width, and 0.98 inches in height, this battery is engineered for convenient portability without adding excessive weight or bulk to your transmitter package. The measured physical footprint makes it ideal for field days and competition venues across the UK.
- XH-1S Connector — The battery features the XH-1S connector specification, ensuring reliable, secure connection to your iX20 transmitter with minimal connection resistance and maximum electrical efficiency during operation.
- DSMX Protocol Compatibility — Designed specifically for DSMX transmitters, this battery works seamlessly within Spektrum's advanced 2.4GHz spread spectrum digital transmission protocol, recognised worldwide for reliability and interference resistance in RC operations.
Technical Performance
The SPM 3.7V 10500mAh 1S Li-Ion Transmitter Battery represents modern battery engineering optimised for professional and recreational RC radio systems. The LiIon chemistry delivers a nominal voltage of 3.3V per cell in its single-cell configuration, providing the precise voltage regulation required by the iX20's sophisticated digital transmission circuitry. The 10,500mAh capacity is amongst the largest available for transmitter applications, translating to genuine all-day operational capability for most RC activities. The physical dimensions—85mm length, 70mm width, and 25mm height—have been engineered for balance between capacity and form factor, ensuring the battery integrates smoothly with the iX20's design whilst maintaining comfortable transmitter handling. LiIon battery chemistry offers superior performance characteristics compared to older lithium polymer or nickel-based transmitter batteries, with better charge retention, improved cycle life, and more stable voltage delivery throughout the discharge cycle. For RC car enthusiasts, RC aeroplane pilots, and all users of Spektrum DSMX radio systems across the UK, this battery delivers the reliability and endurance required for competitive events, training sessions, and casual recreational flying or driving operations.
What's in the Box
- 1x SPM 3.7V 10500mAh 1S Li-Ion Transmitter Battery (XH-1S connector)
Frequently Asked Questions
- Is the SPM 3.7V 10500mAh 1S Li-Ion battery compatible with my Spektrum iX20 transmitter? — Yes, this is the official stock replacement battery specifically designed for the Spektrum iX20 20-Channel DSMX Transmitter. It features the XH-1S connector and the correct 3.7V LiIon voltage specification to work perfectly with your iX20 radio system. This is not a generic transmitter battery but an OEM Spektrum part engineered for this exact application.
- How long will this transmitter battery last on a single charge? — The 10,500mAh capacity provides extended runtime compared to smaller transmitter batteries, delivering many hours of operational time depending on your specific usage patterns. For most RC car racers, pilots, and hobbyists in the UK, a single charge typically provides a full day's flying or driving without requiring a recharge during your session.
- What type of charger do I need for this LiIon transmitter battery? — The source documentation confirms this is an official Spektrum LiIon battery designed for the iX20 transmitter. We recommend using a charger specifically designed for LiIon batteries and compatible with the XH-1S connector specification. Always refer to your iX20 transmitter manual for approved charging equipment and procedures.
- Can I use this battery in other Spektrum transmitter models? — This battery is the stock replacement for the Spektrum iX20 20-Channel DSMX Transmitter. Whilst other Spektrum transmitter models may exist, compatibility depends on connector type and voltage specification. Check your specific transmitter model's documentation or contact us at RC Model Shop to confirm compatibility before purchasing.
- Is this a genuine Spektrum battery or a third-party replacement? — This is the official Spektrum OEM (original equipment manufacturer) battery, part of Spektrum's genuine product line. When you purchase from RC Model Shop, you receive an authentic Spektrum battery with full compatibility guarantee and manufacturer support.
- How often should I charge this transmitter battery? — We recommend charging your 10,500mAh LiIon transmitter battery after each day of use to ensure it's fully charged and ready for your next RC session. LiIon batteries benefit from regular charging cycles and maintain better performance when kept at moderate charge levels between uses.
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 3.7V 10500mAh 1S Li-Ion Transmitter Battery: NX20, iX20 O-SPMB10500LITX3 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.
