Overview
The Etronix 1-8S LiPo Battery Voltage Meter with Alarm (ET0239B) is an essential tool for any RC enthusiast in the UK who operates lithium polymer battery-powered models. Whether you're racing RC cars, flying multirotors, or piloting model aircraft, this compact voltage meter provides quick, at-a-glance battery status checks that help you maintain optimal performance and extend the lifespan of your expensive LiPo packs. This practical device is designed for use at home, in the pits, at the flying field, or anywhere else your RC hobby takes you.
LiPo batteries are the lifeblood of modern RC vehicles, but they require careful monitoring to prevent damage and ensure safety. Over-discharging a LiPo battery can permanently reduce its capacity or render it unusable, whilst pushing cells beyond their safe voltage limits during charging creates fire hazards. The Etronix 1-8S meter eliminates guesswork by giving you precise voltage readings for each cell in your battery pack, helping you keep your RC equipment in peak condition and your flying field or racing track experience safer and more enjoyable.
Designed with practicality in mind, this slimline meter is compact enough to slip into your RC toolkit or field bag, making it the perfect companion for weekend bashers, serious competitors, and casual RC car, boat, and aircraft enthusiasts alike. The integrated alarm function adds an extra layer of protection by alerting you when battery voltage drops to levels that require attention, helping you avoid the disappointment of a dead battery ruining a race or flight session.
Key Features
- 1-8S LiPo Compatibility — This meter works with lithium polymer battery packs ranging from single-cell (1S) right up to 8-cell (8S) configurations, making it compatible with virtually all modern RC vehicles including RC cars, RC boats, RC multirotors, and model aircraft that use LiPo technology. This broad compatibility means you only need one meter in your toolkit regardless of how many different RC models you own.
- Quick Voltage Checks — The at-a-glance display provides instant voltage readings so you can verify your battery status in seconds without needing to connect to chargers or computers. This makes it ideal for rapid equipment checks between race heats, flying sessions, or casual bashing sessions when time is precious.
- Integrated Alarm Function — An integrated alarm provides an audible alert when your battery voltage drops to levels requiring attention, serving as a helpful safeguard between runs or flights. This feature ensures you don't accidentally over-discharge your valuable LiPo batteries, which is one of the quickest ways to permanently damage them.
- Adjustable Alarm Thresholds — The alarm cutoff voltage is fully adjustable via a button on the side of the unit, allowing you to toggle through different voltage thresholds and set the alarm to match your specific battery type and usage requirements. This flexibility means the meter adapts to your needs rather than forcing you to work around fixed settings.
- Compact and Portable Design — The slimline form factor is small enough to carry with you to the track, field, or park, making it a practical addition to any RC toolkit. Whether you're a dedicated competitor or a weekend basher, this meter fits easily into your equipment bag without taking up valuable space.
- Essential Battery Monitoring — Regular voltage monitoring helps you identify problem cells, track battery condition over time, and make informed decisions about when batteries need retiring or retiring before they cause safety issues or performance problems in your RC vehicles.
Technical Performance
The Etronix 1-8S Voltage Meter represents solid engineering from a brand recognised in the RC hobby community for producing reliable, practical accessories. The device is engineered to provide accurate voltage readings across the full range of 1S through 8S LiPo battery configurations, covering everything from small indoor drones and lightweight racing quadcopters right through to powerful 8-cell systems found in high-performance RC cars, RC buggies, RC trucks, and larger RC aircraft. The integrated alarm system has been designed with user convenience in mind, featuring simple button-operated threshold adjustment that allows you to customise cutoff voltages without requiring any technical knowledge or complicated menu systems. Build quality is emphasised through a compact, robust slimline design that can withstand regular field use and the occasional knock or drop that comes with active RC hobby participation. The meter's engineering prioritises practicality and reliability, making it equally suited to beginners learning about LiPo battery care and experienced RC competitors who understand the critical importance of proper battery maintenance for both performance and safety reasons.
What's in the Box
- Etronix 1-8S LiPo Battery Voltage Meter with Alarm (ET0239B)
Frequently Asked Questions
- What does a 1-8S LiPo battery voltage meter do and why do I need one? — A voltage meter allows you to check the individual cell voltages in your LiPo battery pack at any time, helping you monitor battery health, prevent over-discharging which permanently damages batteries, and maintain consistent performance in your RC vehicles. LiPo batteries should never be discharged below 3.0 volts per cell, and regular monitoring with a meter like this helps you stay well clear of dangerous voltage levels that can cause battery failure or fire hazards.
- How does the alarm function work? — The alarm provides an audible alert when battery voltage drops to your set threshold, reminding you to stop using the battery and recharge it. You can adjust the alarm cutoff voltage by pressing the button on the side of the unit and toggling through different voltage options until you find the setting that matches your requirements.
- Is this suitable for beginners? — Yes, absolutely. The Etronix meter is designed for ease of use and doesn't require any technical knowledge or complicated setup. Simply connect your LiPo battery to the meter's connector and you immediately see your voltage reading and hear the alarm if voltage is too low. It's an ideal first purchase for anyone starting their RC hobby journey with LiPo-powered models.
- What battery types and configurations does this meter work with? — This meter is specifically designed for 1-8S lithium polymer (LiPo) batteries, making it compatible with RC cars, RC buggies, RC trucks, RC boats, multirotors, and model aircraft that use LiPo technology. If you operate multiple RC models with different battery configurations, this single meter covers the entire range from single-cell micro drones right up to powerful 8-cell competition vehicles.
- Can I use this meter while my battery is connected to my RC vehicle? — Yes, the meter can check battery voltage independently, allowing you to verify pack health before a session, between races or flights, or any other time you want to monitor your battery without needing to install it in your vehicle or connect it to a charger.
- How accurate are the voltage readings? — The Etronix meter provides reliable voltage readings that are accurate enough for practical LiPo battery monitoring and management. Whilst laboratory-grade analysers exist for competitive racing teams, this meter delivers the accuracy needed for hobby-level RC car, boat, and aircraft operations and general battery maintenance.
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 1-8S LIPO BATTERY VOLTAGE METER w/ALARM ET0239B 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: ET0239B
- Product Type: LiPo Battery Voltage Meter with Alarm
- Battery Compatibility: 1S to 8S Lithium Polymer (LiPo) batteries
- Display Type: At-a-glance voltage display
- Alarm Function: Integrated audible alarm with adjustable voltage thresholds
- Alarm Adjustment: Button-operated threshold selection with multiple voltage cutoff options
- Design: Compact slimline form factor
- Suitable for: RC cars, RC boats, RC multirotors, model aircraft
- Stock Status: In Stock
- Barcode: 5056135737057
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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