Brand, Model and Product Type

• Brand: Futaba
• Model: FUTEBA0139
• Product Type: Futaba FUTEBA0139 LT2F3500XH LiPo battery for 18MZ transmitter, Futaba FUTEBA0139 7.4V 3500mAh LiPo with JST connector, Futaba FUTEBA0139 rechargeable battery for T18MZ radio, Futaba FUTEBA0139 with non-standard JST wire order, Futaba LT2F3500XH LiPo battery for RC radio systems
• Product Colour: Grey

Dimensions

• Product Length: ~14.3 cm – fits securely within the T18MZ transmitter battery compartment
• Product Width: ~5.0 cm – compact enough for snug installation
• Product Height: ~1.95 cm – low-profile design for internal housing
• Product Weight: ~184 g – lightweight for balanced handling and portability
• Shipping Weight: 0.18 kg – includes packaging and protective casing

Electrical Specifications

• Battery Type: Rechargeable lithium-ion polymer – efficient and long-lasting power source
• Nominal Voltage: DC 7.4V – compatible with high-voltage Futaba transmitters
• Nominal Capacity: 3500mAh – supports extended transmitter operation
• Connector Type: JST – non-standard wire order designed exclusively for T18MZ use
• Charging/Discharging Cycles: Approximately 300 – varies based on operating conditions

Temperature Ratings

• Recharging Temperature: 0°C to 45°C – safe range for efficient charging
• Operating Temperature: -20°C to 60°C – suitable for varied environmental conditions
• Storage Temperature: 0°C to 25°C – ideal for preserving battery health during downtime

Application and Use Case

• Use Case: Power supply for Futaba T18MZ transmitter – designed for reliable, long-duration use
• Compatibility: Only compatible with T18MZ – not suitable for general-purpose LiPo applications
• Battery Monitoring: Not compatible with standard battery checkers (e.g., BR-3000)

What’s in the Box

• 1 × Futaba LT2F3500XH 7.4V 3500mAh LiPo Transmitter Battery

What You Require

• Futaba T18MZ transmitter – required for safe and compatible operation
• LiPo-compatible charger – must support 7.4V lithium-ion polymer batteries

Sold Separately

• Futaba T18MZ transmitter – required for battery use
• Compatible LiPo charger – not included with battery

Product Description of Futaba FUTEBA0139 LT2F3500XH LiPo battery for 18MZ transmitter 

The Futaba FUTEBA0139 LT2F3500XH LiPo battery for 18MZ transmitter is a high-capacity, rechargeable power solution designed specifically for Futaba’s T18MZ radio systems. With a nominal output of 7.4V and a capacity of 3500mAh, this lithium-ion polymer battery delivers consistent performance across extended sessions. Engineered with a non-standard JST connector wire order, the battery is intended exclusively for use with the T18MZ transmitter—ensuring safe and reliable operation. The Futaba FUTEBA0139 7.4V 3500mAh LiPo with JST connector features a sleek grey casing and supports approximately 300 charge/discharge cycles, making it a durable and dependable choice for serious RC pilots.

Key features of the Futaba FUTEBA0139 LT2F3500XH LiPo battery for 18MZ transmitter

• 3500mAh capacity – provides extended runtime for long flight sessions
• 7.4V nominal output – compatible with high-voltage Futaba transmitters
• Rechargeable lithium-ion polymer – efficient and lightweight power source
• Non-standard JST wire order – designed exclusively for T18MZ transmitter use
• Grey casing – matches Futaba’s premium transmitter aesthetics
• Approx. 300-cycle durability – supports long-term use under proper conditions

Why is the Futaba FUTEBA0139 rechargeable battery for T18MZ radio ideal for serious RC pilots?

The Futaba FUTEBA0139 rechargeable battery for T18MZ radio is built for reliability and endurance. With a 3500mAh capacity, it delivers sustained power for extended flying sessions, reducing the need for frequent recharges. Its compatibility with 7.4V LiPo systems ensures stable voltage output, while the non-standard JST connector wire order guarantees secure integration with the T18MZ transmitter. This battery is a trusted choice for pilots who demand consistent performance and long-term durability from their power systems.

How does the Futaba FUTEBA0139 with non-standard JST wire order ensure safe transmitter operation?

Safety is paramount in transmitter power systems, and the Futaba FUTEBA0139 with non-standard JST wire order is designed to prevent misconnection and voltage mismatch. The unique wire configuration ensures that the battery interfaces correctly with the T18MZ transmitter, avoiding potential damage caused by incorrect polarity or incompatible setups. This design feature reinforces Futaba’s commitment to precision engineering and user safety, making the battery a secure option for dedicated T18MZ users.

What makes the Futaba LT2F3500XH LiPo battery for RC radio systems a durable power solution?

Durability is a key advantage of the Futaba LT2F3500XH LiPo battery for RC radio systems. Rated for approximately 300 charge/discharge cycles, the battery maintains its capacity and voltage stability over time, even under frequent use. Its operating temperature range of -20°C to 60°C allows for reliable performance in diverse environments, while the recharging temperature range of 0°C to 45°C supports safe and efficient charging. These attributes make it a long-lasting investment for RC enthusiasts.

Is the Futaba transmitter battery for 7.4V LiPo-compatible radios suitable for extended use?

Yes, the Futaba transmitter battery for 7.4V LiPo-compatible radios is specifically designed for extended use. Its 3500mAh capacity supports prolonged transmitter operation, reducing downtime and enhancing user convenience. The battery’s grey casing and compact dimensions (~50 × ~143 × ~19.5 mm) allow for easy installation and secure fitment within the T18MZ housing. With proper care, users can expect consistent performance across hundreds of cycles, making it a practical and efficient power source.

What advantages does the Futaba FUTEBA0139 LT2F3500XH LiPo battery offer for T18MZ users?

The Futaba FUTEBA0139 LT2F3500XH LiPo battery offers a tailored solution for T18MZ users seeking reliable, long-lasting power. Its non-standard JST connector ensures safe and exclusive compatibility, while the high-capacity design supports uninterrupted transmitter operation. The battery’s lightweight construction and grey casing complement the T18MZ’s premium build, and its broad temperature tolerance ensures dependable performance in varied conditions. These features make it a smart upgrade for pilots who rely on their equipment for precision and endurance.

For RC pilots seeking a high-capacity, transmitter-specific power solution with long-term reliability, the affordable Futaba LT2F3500XH with 7.4V output and grey casing is a trusted choice. Buy Futaba FUTEBA0139 3500mAh battery for T18MZ transmitter today.

Technical Specifications of Futaba FUTEBA0139 LT2F3500XH LiPo battery for 18MZ transmitter 

Brand, Model and Product Type

• Brand: Futaba
• Model: FUTEBA0139
• Product Type: Futaba FUTEBA0139 LT2F3500XH LiPo battery for 18MZ transmitter, Futaba FUTEBA0139 7.4V 3500mAh LiPo with JST connector, Futaba FUTEBA0139 rechargeable battery for T18MZ radio, Futaba FUTEBA0139 with non-standard JST wire order, Futaba LT2F3500XH LiPo battery for RC radio systems
• Product Colour: Grey

Dimensions

• Product Length: ~14.3 cm – fits securely within the T18MZ transmitter battery compartment
• Product Width: ~5.0 cm – compact enough for snug installation
• Product Height: ~1.95 cm – low-profile design for internal housing
• Product Weight: ~184 g – lightweight for balanced handling and portability
• Shipping Weight: 0.18 kg – includes packaging and protective casing

Electrical Specifications

• Battery Type: Rechargeable lithium-ion polymer – efficient and long-lasting power source
• Nominal Voltage: DC 7.4V – compatible with high-voltage Futaba transmitters
• Nominal Capacity: 3500mAh – supports extended transmitter operation
• Connector Type: JST – non-standard wire order designed exclusively for T18MZ use
• Charging/Discharging Cycles: Approximately 300 – varies based on operating conditions

Temperature Ratings

• Recharging Temperature: 0°C to 45°C – safe range for efficient charging
• Operating Temperature: -20°C to 60°C – suitable for varied environmental conditions
• Storage Temperature: 0°C to 25°C – ideal for preserving battery health during downtime

Application and Use Case

• Use Case: Power supply for Futaba T18MZ transmitter – designed for reliable, long-duration use
• Compatibility: Only compatible with T18MZ – not suitable for general-purpose LiPo applications
• Battery Monitoring: Not compatible with standard battery checkers (e.g., BR-3000)

What’s in the Box

• 1 × Futaba LT2F3500XH 7.4V 3500mAh LiPo Transmitter Battery

What You Require

• Futaba T18MZ transmitter – required for safe and compatible operation
• LiPo-compatible charger – must support 7.4V lithium-ion polymer batteries

Sold Separately

• Futaba T18MZ transmitter – required for battery use
• Compatible LiPo charger – not included with battery

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.