Overview
The Etronix Battery Harness For 2 Packs In Series Adaptor ET0706 is an essential accessory for RC enthusiasts looking to increase the voltage output of their RC models without investing in entirely new battery systems. This ingenious adaptor allows you to combine two matching battery packs in series, effectively doubling your nominal voltage whilst maintaining the capacity of a single pack. Whether you're running RC cars, trucks, boats, or aircraft, this series harness opens up new performance possibilities by stepping up from lower cell counts—for example, progressing from a 2S to a 4S-equivalent system using two identical 2S packs. For RC hobbyists across the UK seeking to maximise the potential of their existing equipment, this battery harness represents outstanding value and practical engineering.
Designed with safety and reliability in mind, the ET0706 is manufactured to Etronix's exacting standards and provides a straightforward solution for increasing power and speed potential in your RC setup. This is particularly valuable when your ESC and motor are rated for higher cell counts but you don't have access to the appropriate single high-capacity pack. The harness maintains ease of use whilst delivering the electrical connectivity and durability required for consistent performance across multiple RC disciplines, from competitive racing to weekend bashing sessions.
RC Model Shop stocks the Etronix ET0706 battery harness as part of our comprehensive range of spares, upgrades, and accessories for RC cars, trucks, boats, and aircraft. Whether you're an experienced RC racer fine-tuning your competition setup or a newcomer to the hobby exploring different configurations, this adaptor delivers practical value and proven reliability.
Key Features
- Series Configuration Design — The ET0706 connects two matching battery packs in series to increase total voltage output, allowing you to step up your RC model's power delivery when your electronics are rated for higher cell counts.
- Voltage Doubling Capability — By combining two identical packs in series, you effectively double the nominal voltage whilst keeping the overall capacity (measured in mAh) the same as a single pack, giving you more speed and power potential without increasing pack size.
- Compatibility with Multiple Vehicle Types — This harness is suitable for a wide range of RC models including RC cars, trucks, boats, and aircraft, provided your connectors match and your ESC and motor are rated for the increased voltage.
- Maintains Single-Pack Capacity — One of the key advantages of series configuration is that your overall capacity remains unchanged, meaning runtime is similar to using a single pack whilst enjoying the voltage benefits of higher cell counts.
- Straightforward Installation — The adaptor is designed for easy connection between two matching battery packs, with clear polarity markings to ensure safe and correct assembly before powering your model.
- Safety-Focused Design — The harness incorporates quality connectors and wiring suitable for RC applications, though users must ensure both packs are identical in chemistry, capacity, C rating, age, and state of charge for safe operation.
Technical Performance
The Etronix ET0706 series battery harness is engineered to provide reliable electrical connectivity between two battery packs without compromising on build quality or safety margins. The harness utilises quality connectors and appropriately gauged silicone wiring to handle the current demands of typical RC models whilst maintaining durability through repeated connections and disconnections. Unlike parallel configurations which divide current equally, the series arrangement delivers voltage addition, making it ideal for systems where increased speed and power are desired. The adaptor is constructed to withstand the vibrations and stresses common in RC motorsport and recreational use, whether deployed in a high-speed RC buggy, an off-road RC truck, a water-based RC boat, or an aerial RC platform. When used correctly with matched battery packs of identical specifications, the ET0706 provides years of reliable service as part of your RC battery management system. The product's design reflects Etronix's commitment to quality and safety, incorporating features that protect your investment in RC equipment by ensuring proper voltage delivery and preventing dangerous electrical faults.
What's in the Box
- Etronix Battery Harness For 2 Packs In Series Adaptor (ET0706)
Frequently Asked Questions
- What is the difference between series and parallel battery configuration? — Series configuration connects the positive terminal of one pack to the negative terminal of another, adding their voltages together whilst maintaining a single pack's capacity (mAh). Parallel configuration connects positive to positive and negative to negative, maintaining voltage but doubling capacity. For increasing speed and power, series is the correct choice; for increasing runtime, parallel is appropriate.
- Can I use this harness with any two battery packs? — No, you must use two packs of identical chemistry (both LiPo or both NiMH), identical capacity in mAh, identical C rating, similar age, and identical state of charge. Using mismatched packs can result in dangerous conditions and damage to your equipment.
- Will my RC car go faster with this series harness? — Yes, combining two packs in series increases your total voltage, which typically results in higher top speed and greater acceleration potential, provided your ESC and motor are rated for the increased voltage. However, you must verify your electronics can handle the higher cell count before use.
- Do I need to charge the packs separately or together? — You must charge the packs separately unless your charger specifically supports charging packs in series. Most standard RC chargers charge packs individually, so it is safer and recommended to disconnect the harness before charging.
- Is this suitable for beginners? — Whilst the physical connection of the harness is straightforward, using a series configuration requires understanding of battery safety and voltage ratings. Beginners should ensure they have adequate knowledge of their RC model's specifications and consult the vehicle's manual to confirm compatibility before use.
- What safety precautions should I take? — Always verify polarity before connecting, ensure all connections are secure before powering the model, use only matched battery packs, confirm your ESC and motor ratings support the increased voltage, and never charge packs whilst connected in series unless your charger specifically supports this feature.
- What model numbers are available in the series range? — Etronix produces several battery harness options including the ET0706 for 2 packs in series, alongside parallel configurations and connectors suitable for different RC applications and connector types including Deans, EC3, and standard EH connectors.
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 Etronix Battery Harness For 2 Packs In Series Adaptor ET0706 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.
- Brand: Etronix
- Model Number: ET0706
- Product Type: Battery Harness Adaptor
- Configuration: 2 Packs In Series
- Barcode: 5055323929717
- Compatible Battery Chemistry: LiPo, NiMH (with matched specifications)
- Suitable Applications: RC Cars, RC Trucks, RC Boats, RC Aircraft
- Required Battery Pack Specifications: Identical chemistry, capacity (mAh), C rating, age, and state of charge
- Connector Type: Standard EH connectors
- Voltage Increase: Doubles nominal voltage of single pack (e.g., 2 x 2S = 4S equivalent)
- Capacity: Maintains single pack capacity (mAh)
- Key Safety Feature: Polarity-marked connections
- Important: Do not charge packs whilst connected in series unless charger specifically supports this
- Important: Verify ESC and motor are rated for increased voltage before use
- Available Alternatives: Parallel configuration (ET0706P equivalent), Deans connectors, EC3 connectors
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.
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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.
