HW30107000

Overview

Introducing the Hobbywing QuicRun 12BL45 G2 Brushless Waterproof Speed Control — a precision electronic speed controller designed specifically for 1/12th and 1/14th scale RC vehicles. Whether you're running an on-road racer, an off-road buggy, a short course truck, or a bigfoot crawler, this intelligent ESC delivers efficient, stable performance that will keep your brushless RC car running smoothly in virtually any condition. The QuicRun 12BL45 G2 is the ideal choice for UK RC enthusiasts who demand reliability, ease of use, and outstanding value for money.

Built with Hobbywing's reputation for quality and innovation, this waterproof ESC features cutting-edge intelligent freewheeling technology that significantly improves driving efficiency whilst reducing operating temperatures. This means your brushless motor and ESC can handle extended high-load operation without performance degradation — essential for competitive racing or weekend bashing sessions. The compact 39.2 × 29.2 × 25.6mm design and lightweight 57-gram construction make it easy to fit into tight spaces within your RC chassis, whilst the comprehensive programming options ensure you can fine-tune performance exactly to your preferences.

The QuicRun 12BL45 G2 is engineered for both beginners and experienced RC pilots alike. Its intuitive setup process, combined with flexible programming methods and powerful built-in battery eliminator circuit (BEC), makes it the perfect entry point into brushless RC driving. Yet its 45-amp continuous current rating and 200-amp peak capability deliver the performance enthusiasts demand. If you're searching for a reliable, feature-rich brushless ESC for your 1/12 or 1/14 scale RC car in the UK market, the QuicRun 12BL45 G2 deserves serious consideration.

Key Features

• Intelligent Freewheeling Technology — The ESC's innovative freewheeling system significantly improves overall driving efficiency by optimising power delivery and reducing energy waste. This means longer runtime from your batteries and smoother, more responsive handling characteristics that translate directly to better performance on the track or trail.
• Advanced Thermal Management — Built-in efficient and intelligent cooling ensures the ESC maintains optimal operating temperatures even under sustained high-load conditions. This allows your brushless motor to perform consistently without thermal throttling or performance loss, keeping your RC buggy or on-road racer competitive throughout the entire race or bash session.
• IP67 Waterproof and Dustproof Protection — The ESC achieves IP67 protection rating, delivering excellent waterproof and dustproof performance. This means your brushless RC car can operate smoothly in various climatic conditions and harsh environments, whether you're racing in wet weather or battling through dusty terrain. Please note that whilst the IP67 rating covers splash, water and dust under normal use conditions tested in controlled laboratory environments, the protection is not permanent and may diminish with wear and aging. Avoid prolonged water immersion to maintain the integrity of your ESC.
• Powerful Built-in BEC System — The integrated battery eliminator circuit provides 4-amp continuous current output with a maximum output capacity of 7 amps. This powerful BEC can easily drive various powerful servos and high-voltage servos, giving you the flexibility to run virtually any steering and throttle control combination your RC vehicle demands. The switchable 6V or 7.4V output voltage means you can match your servo voltage requirements precisely.
• Multiple Programming Methods — The QuicRun 12BL45 G2 supports three different parameter adjustment approaches: direct SET button programming on the ESC itself, LED programming box connection, or LCD G2 programming box integration. This flexibility ensures you can choose your preferred programming method and adjust settings conveniently without requiring expensive additional equipment.
• Independent Programming Port — The dedicated programming port design eliminates the need to unplug or disconnect your throttle cable when adjusting parameters. This independent port also serves as a multi-purpose connection point, allowing you to attach external cooling fans for enhanced thermal management of other vehicle components.
• Optimal Motor Compatibility — The QuicRun 12BL45 G2 is perfectly matched with Hobbywing's QuicRun 2840 and 2850 G2 brushless motors, delivering smoother power output and superior control performance compared to running with incompatible motor brands. When combined with these motors, you'll experience enhanced responsiveness and a more enjoyable driving experience.
• Wide Vehicle Application Support — This ESC is engineered to work brilliantly across a diverse range of 1/12th and 1/14th scale RC vehicle types including on-road racers, off-road buggies, short course trucks and bigfoot crawlers. Its versatile performance envelope makes it an excellent choice whether you're building your first brushless RC car or expanding an existing fleet.
• Beginner-Friendly Design — Designed specifically for entry-level users, the QuicRun 12BL45 G2 inherits Hobbywing's outstanding engineering quality whilst maintaining an easy-to-operate interface that doesn't require complicated debugging or advanced technical knowledge. New RC enthusiasts will appreciate the straightforward setup process and predictable performance.
• Premium Connectors and Cabling — The ESC ships with quality power cables featuring black and red 14-gauge wiring (110mm length), three black 14-gauge output wires (85mm length), XT60 battery connector, and 3.5mm gold-plated female output plugs. Optional connector upgrades to Deans, IC2 or XT30 formats are available, allowing perfect compatibility with your existing battery and motor wiring.

Technical Performance

The Hobbywing QuicRun 12BL45 G2 represents advanced brushless electronic speed control engineering optimised for 1/12th and 1/14th scale RC vehicles. This sensorless and sensored-compatible ESC handles continuous currents of 45 amps with peak burst capability reaching 200 amps, delivering the consistent, reliable power delivery that modern brushless motors demand. The unit accepts 2-cell through 3-cell lithium polymer (LiPo) battery configurations, with a maximum input voltage rating of 11.1 volts (3S nominal). The integrated BEC system outputs switchable 6-volt or 7.4-volt power rails, each capable of sustaining 4 amps continuous draw with 7-amp peak output, providing sufficient capacity for multiple servos and electronic accessories. Construction dimensions measure a compact 39.2 millimetres in length by 29.2 millimetres in width by 25.6 millimetres in height, with the entire assembly weighing just 57 grams including all factory-installed wiring harnesses and connectors. The housing utilises premium materials and sealed construction techniques to achieve IP67 protection, rendering the ESC resistant to water ingress and dust contamination during normal recreational use. The intelligent freewheeling algorithm continuously optimises power distribution pathways, reducing resistive heating and extending runtime whilst maintaining exceptional throttle response and precise motor control. When paired with sensorless brushless motors — or sensored motors running in sensorless mode — the QuicRun 12BL45 G2 delivers smooth, predictable acceleration characteristics and stable top-end performance across the full throttle range. The independent programming port accepts standard Hobbywing LCD G2 and LED programming boxes, enabling comprehensive parameter customisation including throttle curves, brake strength, timing advance, and voltage cutoff thresholds without requiring dedicated computer software or OTA wireless connectivity.

What's in the Box

• Hobbywing QuicRun 12BL45 G2 Brushless ESC (HW30107000)
• Black power cable with 14-gauge wiring, 110mm length
• Red power cable with 14-gauge wiring, 110mm length
• Three black output cables with 14-gauge wiring, 85mm length each
• XT60 battery connector
• 3.5mm gold-plated female output plugs

What You Need to Complete

• Sensorless or sensored brushless motor suitable for 1/12th or 1/14th scale RC vehicles (Hobbywing QuicRun 2840 or 2850 G2 recommended for optimal performance)
• 2S or 3S LiPo battery pack with compatible connector (optional connector adapters available: Deans, IC2, or XT30)
• RC transmitter and receiver system
• Steering servo and throttle servo (the built-in BEC will power these)
• RC vehicle chassis suitable for 1/12th or 1/14th scale (on-road racer, off-road buggy, short course truck, or bigfoot crawler)
• LED or LCD G2 programming box (optional, for advanced parameter tuning)

Frequently Asked Questions

• Is the Hobbywing QuicRun 12BL45 G2 suitable for beginners? — Yes, absolutely. The QuicRun 12BL45 G2 is specifically designed for entry-level users who are new to brushless RC driving. Hobbywing engineered this ESC to inherit the company's outstanding quality whilst maintaining an easy-to-operate interface that doesn't require complicated debugging or advanced technical knowledge. The straightforward SET button programming method allows beginners to adjust basic parameters directly on the ESC without purchasing expensive additional equipment. The predictable, smooth performance characteristics make it ideal for learning proper RC driving techniques.
• What battery does the Hobbywing QuicRun 12BL45 G2 require? — This ESC accepts 2-cell or 3-cell lithium polymer (LiPo) battery packs, with a maximum input voltage rating of 11.1 volts (3S nominal). Most UK RC enthusiasts running 1/12th and 1/14th scale vehicles use 3S LiPo batteries (11.1V nominal) for optimal performance, though 2S configurations (7.4V nominal) are also supported if you prefer lower speed or extended runtime. The factory-installed XT60 connector can be upgraded to Deans, IC2, or XT30 formats if your existing batteries use different connectors.
• Can this ESC work with sensored motors? — The QuicRun 12BL45 G2 is compatible with both sensorless brushless motors and sensored brushless motors. However, when using sensored motors, the ESC operates in sensorless mode only — it does not utilise the motor's built-in position sensors. For optimal performance, pairing with Hobbywing's QuicRun 2840 or 2850 G2 sensorless brushless motors is recommended, as these motors are engineered specifically for this ESC and deliver the smoothest power output and best control performance.
• What is the difference between the G2 version and older QuicRun models? — The G2 designation indicates this is Hobbywing's latest generation speed controller incorporating improved intelligent freewheeling technology and advanced thermal management compared to previous QuicRun iterations. The G2 also features the independent programming port design, eliminating the need to disconnect throttle cables during parameter adjustment. The G2 architecture delivers better overall efficiency, lower operating temperatures under load, and more refined performance characteristics throughout the throttle range.
• How does the waterproof IP67 rating benefit my RC car? — IP67 protection means the ESC can handle splash, water spray, and dust exposure during normal recreational use, as verified through controlled laboratory testing. This allows you to run your brushless RC car in wet weather conditions and dusty off-road environments without immediate electronics failure. However, the protection is not permanent — it may decrease due to daily wear and aging — and you should avoid prolonged water immersion or underwater operation, as this will damage the ESC.
• What programming options are available? — The QuicRun 12BL45 G2 supports three parameter adjustment methods: direct SET button programming on the ESC itself (simplest approach for basic adjustments), LED programming box connection (mid-level customisation), or LCD G2 programming box integration (comprehensive parameter control including throttle curves and timing advance). The independent programming port design means you never need to disconnect your throttle cable or motor connectors when making adjustments.
• Can the built-in BEC power my servos? — Yes, the integrated BEC is powerful enough to drive various servo types. It provides 4-amp continuous current output with 7-amp peak capacity, and supports switchable 6-volt or 7.4-volt output voltage. This means you can run demanding high-torque steering servos and high-voltage servos directly from the ESC's BEC without requiring a separate external power supply. Check your servo specifications to confirm voltage compatibility.
• What are the physical dimensions and weight? — The ESC measures 39.2 millimetres in length, 29.2 millimetres in width, and 25.6 millimetres in height, with a total weight of 57 grams including all factory-installed cables and connectors. This compact, lightweight design makes it easy to fit into tight mounting spaces within 1/12th and 1/14th scale RC vehicle chassis.

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 HOBBYWING QUICRUN WP 12BL45 G2 BRUSHLESS S/LESS ESC 1/12+1/14 HW30107000 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.