Overview
The SPM UM to JST (5) & UM to PH2.0 (5) Charger Adapters O-SPMA3021 is an essential accessory for RC enthusiasts who operate models with multiple connector types. Manufactured by Spektrum, a trusted name in RC hobby electronics, these adapter sets enable seamless compatibility between ultra-micro (UM) connectors and two of the most commonly used charging connectors in the RC industry: JST and PH2.0. Whether you're running a fleet of RC cars in the UK or managing multiple models with different charging requirements, these adapters eliminate the frustration of incompatible connections and allow you to use a single charger across your entire collection.
For RC hobbyists managing diverse equipment, connector compatibility is crucial. The inclusion of five JST adapters and five PH2.0 adapters means you have flexibility and redundancy built in. These connectors represent industry standards used across lightweight RC vehicles, from micro-scale cars to specialised ultra-micro models. The Spektrum name guarantees quality construction and reliable electrical connectivity, ensuring your charger performs safely and efficiently every time you need to top up your batteries.
RC Model Shop stock genuine Spektrum adapters because we understand that quality connectors directly impact your charging experience and battery longevity. These adapters are precision-engineered to maintain tight electrical contact, minimise voltage drop during charging, and prevent accidental reverse polarity connections that could damage your valuable RC equipment.
Key Features
- Dual Adapter Set — This package contains a total of ten adapters: five UM to JST connectors and five UM to PH2.0 connectors, providing comprehensive coverage for different charging scenarios and ensuring you always have a spare adapter on hand.
- Ultra-Micro (UM) Connector Compatibility — The UM connector standard is specifically designed for lightweight and ultra-micro RC applications, making these adapters ideal for small-scale models, micro racing drones, and compact RC vehicles that require minimal weight and space.
- JST Connector Support — JST connectors are among the most widely recognised and used charging connectors in the RC hobby, particularly popular in mid-range RC cars, trucks, and electric models across the UK RC community.
- PH2.0 High-Current Ultra Micro Support — The PH2.0 connector specification is recognised as the high-current ultra-micro standard, enabling safe and reliable charging for demanding applications where weight and size constraints are critical.
- Spektrum Quality Construction — Every adapter is manufactured to Spektrum's exacting standards, ensuring durable gold-plated contacts, precise tolerance manufacturing, and reliable performance over thousands of charge cycles.
- Safety and Reliability — These adapters are engineered to maintain consistent electrical contact and minimise heat generation during charging, protecting both your charger and your expensive RC batteries from damage.
- Convenient Multi-Pack Format — With five adapters of each type included, you can keep adapters permanently installed on frequently-used models or batteries, eliminating the need to constantly swap connectors between charging sessions.
Technical Performance
The SPM UM to JST (5) & UM to PH2.0 (5) Charger Adapters O-SPMA3021 are passive connector adapters with no active electronic components, meaning they simply provide mechanical and electrical bridging between different connector standards. Each adapter features precision-machined contact points with gold plating to ensure minimal electrical resistance and maximum conductivity. The UM connector is the industry standard for ultra-micro RC applications where weight is critical, whilst the JST connector is widely used across standard RC models and chargers throughout the UK. The PH2.0 connector, officially recognised as the high-current ultra-micro specification, supports higher current flows than standard micro connectors, making it suitable for more demanding RC applications. These adapters are fully compatible with any Spektrum charger and with virtually all aftermarket chargers that support these connector types, making them exceptionally versatile for your RC hobby setup. The five adapters of each type provide redundancy and convenience, allowing you to maintain adapters across multiple models and batteries without the need for repeated connector swapping. Whether you're charging ultra-lightweight racing drones, micro RC cars, or small-scale RC trucks, these adapters deliver the reliable connectivity you need to keep your fleet operational.
What's in the Box
- 5x UM to JST Charger Adapters
- 5x UM to PH2.0 Charger Adapters
Frequently Asked Questions
- What connector types do these adapters support? — These adapters bridge ultra-micro (UM) connectors to both JST and PH2.0 connectors, allowing you to charge models equipped with JST or PH2.0 connectors using a charger with a UM output.
- Are these adapters suitable for all RC chargers? — These passive adapters are compatible with any Spektrum charger and most aftermarket RC chargers that feature UM connector outputs. Always verify your charger's specifications before use.
- How many adapters should I purchase? — This set includes five JST and five PH2.0 adapters, providing multiple spares and the convenience of leaving adapters permanently attached to frequently-used models or battery connectors.
- What is the difference between JST and PH2.0 connectors? — JST connectors are the standard micro connector widely used in RC applications throughout the UK, whilst PH2.0 connectors are the recognised high-current ultra-micro standard designed for applications requiring higher current capacity in a compact form factor.
- Are these adapters safe to use? — Yes, these Spektrum adapters are engineered with gold-plated contacts and precision manufacturing to ensure reliable electrical connectivity and minimal heat generation, protecting your charger and batteries during charging cycles.
- Can I use these adapters with non-Spektrum chargers? — These passive adapters are compatible with most RC chargers that feature UM connector outputs, including many aftermarket and third-party charger brands used in the RC hobby.
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 UM to JST (5) & UM to PH2.0 (5) Charger Adapters O-SPMA3021 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.
