- Brand: Blade
- Model Number: BLH4421
- Manufacturer Number: 605482161630
- Battery Type: 2S LiPo (Lithium Polymer)
- Nominal Voltage: 7.4V
- Capacity: 320mAh
- Cell Configuration: 2S (2-cell)
- Compatible Model: Blade 150 FX
- Fitment: Standard Part
- Product Status: Discontinued
- Stock Status: Clearance
Overview
The Blade 7.4V 320mAh 2S LiPo Battery is a genuine replacement and spare power solution specifically designed for the Blade 150 FX micro helicopter. This compact LiPo battery pack delivers the reliable performance you need to keep your flight sessions going, whether you're a seasoned RC helicopter pilot or just getting started with micro-scale RC flying in the UK. As a lightweight micro heli battery, it represents an ideal choice for hobbyists who demand consistent power delivery without unnecessary weight that would compromise flight performance.
Listed as clearance stock, this BLH4421 battery offers genuine Blade engineering at an excellent value for those looking to expand their spare battery collection or replace a worn pack. With the right specifications for micro helicopter applications, this 2S LiPo battery is the perfect companion to your 150 FX model, ensuring you always have a charged pack ready for the next flight. Whether you're flying indoors or outdoors, this spare battery lets you extend your RC helicopter sessions without the downtime of waiting for a single pack to recharge.
As an authorised Blade retailer, RC Model Shop stocks genuine Blade batteries and spares to keep your RC helicopter fleet in top condition. The BLH4421 is a standard fitment part for the 150 FX RTF model, making it straightforward to identify and install without any compatibility concerns.
Key Features
- 7.4V 2S LiPo Nominal Voltage — This 2-cell lithium polymer battery delivers a stable 7.4V output that matches the power requirements of the Blade 150 FX helicopter, ensuring optimal performance and flight characteristics throughout the charge cycle.
- 320mAh Capacity — The 320mAh energy capacity provides adequate flight time for recreational flying whilst maintaining a lightweight profile that does not compromise the helicopter's agility and responsiveness in the air.
- Genuine Blade Replacement Part — As an original equipment manufacturer battery, this pack is engineered to the exact specifications Blade developed for the 150 FX, guaranteeing compatibility and reliability without the risk of incompatible third-party alternatives affecting your model's performance.
- Compact Lightweight Design — The micro heli battery form factor keeps your helicopter's centre of gravity optimal and ensures the lightweight construction does not add unnecessary mass that would drain your flight time or affect handling characteristics.
- Ideal for Spare Battery Collection — At the reasonable price point of clearance stock, this battery pack makes perfect sense as a second or third spare to rotate through your flying sessions, maximising your total airtime without extended downtime waiting for recharge cycles.
- Standard Connector Compatibility — This battery uses the connector type specified for the 150 FX, allowing simple plug-and-play installation without requiring adapters or modifications to your helicopter's charging system.
Technical Performance
The Blade BLH4421 7.4V 320mAh 2S LiPo battery is engineered with the precision and quality control that defines genuine Blade products. The 2-cell (2S) lithium polymer construction delivers a nominal voltage of 7.4V, which is the optimal power level for small-scale RC helicopters like the 150 FX. With 320mAh capacity, this battery pack provides sufficient energy density for recreational flight sessions whilst remaining compact enough to maintain the helicopter's performance envelope. The battery's lightweight design is crucial for micro-scale RC helicopter applications, where every gram matters for flight stability, responsiveness and overall flight duration. Lithium polymer technology ensures consistent voltage delivery throughout the discharge cycle, meaning your helicopter maintains stable power from the first moments of flight through to the final seconds before the battery needs recharging. The genuine Blade construction means you can trust this battery to perform reliably flight after flight, with proper charge and discharge cycles delivering years of service. For UK RC helicopter enthusiasts flying the 150 FX, this battery represents an authentic engineering solution rather than a generic third-party alternative that might compromise your model's behaviour or reliability.
What's in the Box
- Blade 7.4V 320mAh 2S LiPo Battery Pack
Frequently Asked Questions
- Is the Blade 150 FX 7.4V 320mAh 2S LiPo battery suitable as a spare for my helicopter? — Yes, this is a genuine Blade replacement battery specifically designed as a standard fitment part for the 150 FX RTF helicopter. Having a spare battery on hand is essential for extending your flying sessions, as it allows you to swap out a depleted pack and continue flying immediately rather than waiting for a recharge cycle to complete.
- What voltage does this LiPo battery provide? — The battery delivers a nominal 7.4V output from its 2-cell (2S) configuration. This voltage is precisely matched to the Blade 150 FX's power requirements, ensuring optimal performance and flight characteristics. Never attempt to use a different voltage battery with your 150 FX, as this could damage the electronic components or create safety hazards.
- How much flight time will I get from the 320mAh capacity? — Flight duration depends on various factors including flying style, weather conditions, helicopter trim and rotor head condition. The 320mAh capacity is designed for micro-scale RC helicopter applications where typical flight sessions last several minutes per battery. For extended flying throughout a day, keeping multiple batteries on rotation is the standard practice amongst UK RC helicopter enthusiasts.
- Can I use this battery with other RC helicopter models? — Refer to your specific model's requirements to ensure it needs a 7.4V 2S LiPo battery with 320mAh capacity and the appropriate connector type. Whilst the Blade BLH4421 is specifically designed as a standard fitment for the 150 FX, using batteries outside your model's specifications could cause performance issues or electronic damage. Always consult your model's manual before installing a replacement battery.
- Is this genuine Blade stock? — Yes, this is an original Blade product with manufacturer number 605482161630. RC Model Shop stocks only authorised genuine products from recognised manufacturers, so you can be confident you're purchasing authentic equipment with full manufacturer backing and support.
- What does clearance stock mean? — Clearance stock indicates this product is sold at a reduced price as the manufacturer is discontinuing the line. The battery itself is brand new and fully functional; the clearance status simply reflects its status in Blade's product lifecycle, offering you excellent value on a quality spare 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 Blade 7.4V 320mAh 2S LiPo Battery: 150 FX O-BLH4421 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.
