Heavy Transport

dump truck ev
Heavy Transport, Industry Insight, Light Commercial Vehicles

EV Truck Drive Systems: Direct Drive Motor vs. E-Axle

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When it comes to the pure EV truck, understanding the differences between traditional electric motor structures and modern e-axle systems is crucial. Let’s use an electric dump truck as an example to explore these differences. Traditional Drivetrain Structure – Direct Drive Motor The traditional drivetrain in electric trucks closely resembles the layout found in conventional vehicles. The drive motor, equivalent to a diesel engine, is the heart of this system. Directly behind the motor is a reducer, functioning similarly to a traditional gearbox. The reducer’s job is to increase torque by reducing the motor’s speed, effectively amplifying power. This amplified power is then transmitted through a driveshaft to the rear axle. The rear axle, with a gear ratio of approximately 5.857, is comparable to that of traditional dump trucks. How It Works A notable feature of this system is the two-speed function of the reducer, which allows the vehicle to switch between different gear ratios based on the load, similar to shifting gears in a traditional transmission. This functionality provides both speed and power as needed. E-Axle System Now, let’s delve into the e-axle system. An e-axle integrates the electric motor with the rear axle, combining four major functions: the motor, rear axle, transmission, and differential. This integration brings several significant advantages: However, the e-axle system does present challenges. Integrating the motor with the rear axle reduces space for torque amplification mechanisms, potentially limiting the power output compared to traditional setups with a gearbox. Achieving high power levels with an e-axle requires advanced design and engineering capabilities. Brogen’s Solutions At Brogen, we supply traditional drive motor and e-axle systems for electric vehicle builders. Our e-axle for heavy-duty trucks can deliver a maximum output torque of 50,000 Nm, providing ample power for these vehicles. Our electric motors offer power options ranging from 165 kW to nearly 800 kW, catering to various commercial vehicles, including light trucks, tractors, concrete mixers, and more. Explore our cutting-edge electric axle solutions and see how Brogen can help you achieve success in the rapidly expanding e-mobility sector. Contact

blade battery for battery electric truck
Heavy Transport, Industry Insight, Light Commercial Vehicles, Technologies

How Blade Battery Packs Benefit the Electric Truck?

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Electric Trucks Equipped With Blade Batteries: Higher Energy, Lower Consumption The latest all-electric truck from BYD features blade battery packs. Introduced by BYD four years ago, these LFP blade battery packs eliminate the module design, reducing many structural components. The close connection between the upper and lower casings and the battery cells significantly increases volumetric energy density, reaching levels comparable to high-energy-density ternary lithium batteries. This battery electric vehicle model boasts a battery capacity of 94.3 kWh, providing a pure electric range of over 275 kilometers, surpassing the typical 100~200 kilometer range of industry-standard electric light trucks. In addition to the impressive energy density, blade battery technology offers higher thermal stability, lower thermal runaway temperature, smaller thermal runaway reactions, and a reduced likelihood of thermal runaway compared to ternary lithium and standard LFP batteries. This makes the light-duty truck, which operates over longer distances annually, safer. The blade battery’s exceptional thermal management extends battery life, improves charging and discharging efficiency, and shortens charging time. This all-electric truck can achieve over 100 kilometers of range with just half an hour of charging, further enhancing operational efficiency. Electric Truck Chassis Optimization: Better Layout, Higher Load Capacity Unlike traditional electric light trucks that position the standard battery boxes on the sides of the chassis or hang them in the middle, this electric truck’s blade battery is semi-embedded within the chassis frame. This structure integrates the battery into the chassis, making it part of the vehicle’s framework, providing both an energy source and structural rigidity. This design completely revolutionizes traditional electric light truck chassis layouts. Additionally, the semi-embedded design increases the chassis’ ground clearance, improving overall vehicle possibility. The flat-laying design of the chassis battery allows the truck to use a direct-drive system with an integrated electric drive axle. This system features a flat-wire motor and reducer within a shared casing, improving slot fill rate and efficiency. The lightweight aluminum alloy casing enhances transmission efficiency and reduces energy loss compared to traditional direct-drive systems. In terms of the suspension design, the vehicle uses a 3/5+6 leaf spring, with significantly more leaves in the rear axle springs, directly boosting the vehicle’s load capacity. Cabin Design: More Space, Lower Wind Resistance Building on the previous generation electric light truck, which positioned the integrated controller and battery systems on the sides of the chassis under the body, this EV truck continues this design, thanks to the more compact blade battery pack. This allows for a more spacious cabin layout. The cabin details have been optimized, upgrading the traditional mechanical handbrake to an electronic handbrake for increased comfort during driver rest periods while charging. Additionally, the vehicle’s battery system is split into two sets: one located on the side of the chassis under the body, and the other under the tilting cab, powering the low-voltage system of the cabin. This separated design enhances the stability and safety of the cabin’s power supply system. Summary In summary, the new electric light-duty truck, equipped with a 94.3 kWh blade battery, not only significantly improves vehicle range but also addresses user-identified issues through comprehensive upgrades to the chassis structure and cabin design. By leveraging blade battery technology, the vehicle reduces costs and increases efficiency for users. With competitive blade battery prices and enhanced electric truck battery capacity, BYD’s approach to batteries for electric vehicles sets a new standard in the industry. Looking for an EV Battery System for Your Project? Here at Brogen, we provide customized EV battery solutions, including standard LFP battery packs and advanced LFP blade battery systems for trucks, buses, vans, and other construction equipment or specialty vehicles. Contact us through the form below and we’ll get back to you shortly to discuss how we can empower your EV project!

mining truck-1
Heavy Transport, Specialty Equipment

Pure Electric Mining Truck Project

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This collaborative project enabled our client, a leading construction equipment manufacturer, to replace diesel mining trucks with its own line of purpose-built, all-electric mining truck models designed specifically for rugged, mountainous terrain. These innovative electric mining trucks offer many advantages, including ample battery capacity, reliable performance, and adaptability in a variety of working environments. This strategic shift has not only resulted in fuel cost savings but has also made a significant dent in carbon emissions. As a result, it represents a win-win scenario that offers both economic benefits and environmental stewardship – an offer that has been enthusiastically embraced by our client’s customer base. Project Overview Project timeline: 2021 Offered products: E-powertrain system (dual motor power uninterrupted solution) Application: 120-ton to 180-ton mining truck Provided services: Pre-sales consultation; solution planning; technical coordination; product testing; shipping; post-sales technical support; onsite debugging Challenge Our client, a seasoned manufacturer of construction equipment, places a strong emphasis on thorough, scientifically supported research prior to making any significant decisions. They recognize that establishing trust is the pivotal first step in our partnership. They also highlight that relying solely on branded core components does not guarantee consistent equipment quality, especially with the introduction of novel electric technologies requiring heightened caution. In addition, design integrity is fundamental. How effectively we address challenges has a significant impact on our customers’ perceptions. Our commitment extends beyond product delivery; we’re entrusted with ensuring the smooth flow of their vehicle production operations. Our Approach To meet the demanding power requirements of steep-grade applications, we introduce our dual-motor electric powertrain system. Designed to excel under continuous heavy loads, it delivers an impressive power output of up to 540 kW at rated capacity and 800 kW at maximum, equivalent to over 1000 horsepower. Even on a daunting 30% grade, it rises to the challenge, effortlessly pulling heavy loads while maintaining rapid movement, significantly improving transportation efficiency. Beyond design, our customer appreciates our proactive approach to problem-solving. In particular, they praise our “delivery is the beginning of service, not the end of sales” ethos. We don’t just provide products; we provide comprehensive green transportation solutions. Our commitment extends beyond the mere delivery of equipment; we ensure seamless production operations for our users. Providing dedicated field service personnel is just the beginning. When faced with complex challenges, we mobilize our R&D and quality teams and go the extra mile to support our customers’ production needs. Solutions We’ve Provided Motor 1 & Motor 2 Parameters Gearbox Parameters Gear 1 3 5 2 4 6 Speed ratio 9.16 3.02 1.22 5.27 2.17 1 System Parameters Contact If you’re seeking an EV solution for your project, feel free to fill out the following form. You can also write to us at contact@brogenevsolution.com Our experts will promptly respond within 2 business days, crafting a tailored EV system to empower your projects.

portugal project (1)
Heavy Transport

40-ton Electric Heavy Truck Project in Portugal

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40-ton Electric Heavy Truck Project in Portugal Introduction This project marks a significant milestone as we partnered with a new energy company in Portugal to successfully deliver their first all-electric heavy-duty truck, signaling a decisive step towards zero carbon emissions. It embodies our mission and underscores our commitment to accelerating the transition to green renewable energy, advancing humanity’s journey to carbon neutrality, and driving societal progress. Project Overview Project timeline: 2021 Offered solutions: e-powertrain system, power steering system, braking system, 3-in-1 auxiliary converter Application model: 40-ton pure electric heavy duty truck Provided services: pre-sales consultation, solution planning, technical coordination, product testing, post-sales technical support, remote debugging Challenge Collaborating with this company on their first electric heavy-duty truck project presents both exciting prospects and challenges for both parties involved. For them, embarking on their first electric heavy truck endeavor poses a learning curve. Given their parent company’s background in construction and energy storage, their newly established new energy department may lack the technical expertise needed for designing and developing comprehensive EV solutions. Additionally, the R&D costs could be substantial, potentially leading to longer project timelines and delayed vehicle launches. For us, our foremost task is to establish clear lines of communication and grasp a thorough understanding of their requirements, preferences, and expectations for the heavy truck project. From there, we must devise tailored EV solutions to precisely meet their needs. Effective collaboration with their team is paramount to address any technical hurdles, tackle challenges head-on, and ensure seamless project execution. Our Approach In assisting this company in its EV truck project, our approach has been anchored in robust communication from inception to completion, ensuring a thorough understanding of our client’s needs. We’ve tailored the EV solution precisely to their specifications, guiding them through any technical challenges encountered along the way. Furthermore, we extend ongoing remote technical support and engage in cooperative discussions with their team to address any lingering technical concerns. Solutions We Have Provided 1. E-Powertrain (Electric Motor + Gearbox) We’ve equipped the truck with our 350 kW 2-in-1 integrated e-powertrain system, seamlessly combining the EV motor and gearbox alongside an independent MCU. The electric motor used in this project System Parameters Rated / peak power: 220 / 350 kW Rated voltage: 618 V Rated / peak speed: 1400 / 3000 rpm Rated / peak torque: 1500 / 2500 N.m Rated / peak current: 340 / 610 A Protection level: IP67/H Cooling method: liquid cooling Applicable models: heavy truck System Features The electric powertrain system with the gearbox Integrated motor: a streamlined design for convenient vehicle layout, eliminating phase harness EMC radiation while minimizing energy loss. Real-time weight measurement: ensures precision within 10%, while dynamic slope measurement boasts an accuracy of ±0.2° and static accuracy of ±0.1°. Adaptive shift timing: responds to factors like vehicle weight, slope, and driver input, including throttle system, pedal depth, and acceleration, adjusting shift points dynamically. Shift time clocks in at under 0.7s. Digital intelligent shifting: employs an electronically controlled shifting system for precise gear changes, enhancing overall performance. The electric powertrain system efficiency map 2. Power Steering System (Electric Hydraulic Power Steering) We have supplied the 4 kW electric hydraulic power steering system (EHPS) on the truck. The integrated design combines a motor, steering pump, ECU, DC power processing, and oil tank into a single unit, which maximizes space utilization, simplifies system integration, and offers compact size and light weight. The EHPS for this project System Parameters Rated power: 4 kW Rated voltage: AC 380 V Rated current: 7.4 A Rated torque: 34.2 N.m Rated speed: 1200 rpm Peak power: 10.75 kW Back EMF (rated speed): 140 V/krpm Peak current: 19.2 A Peak torque: 85.6 N.m Peak speed: 1281 rpm Controlled flow: 18±2 L/min Insulation class: H Rated efficiency: 92% Line resistance (20°C): 1.88Ω Phase resistance (20°C): 0.9Ω Working frequency: 80 Hz Protection class: IP67 Pole pairs: 4 Q-axis inductance: 9.3 mH D-axis inductance: 12.5 mH 3. Braking System (Air Brake Compressor) We have supplied the 4 kW oil-free air brake compressor for the electric heavy truck. With the latest technology, our air compressor delivers air that’s entirely oil and water-free, eliminating concerns of oil emulsification, leaks, and fire hazards. Its innovative structural design minimizes energy waste during compression, optimizing efficiency. The air brake compressor used in this project System Parameters Rated exhaust: 380 L/min Rated exhaust pressure: 1 Mpa Exhaust pressure: 1.2 Mpa Dimensions: 560*335*370 mm Motor power: 4 kW Weight: 65 kg Operating temperature: -40°C ~ + 60°C Protection class: IP67 4. Auxiliary Inverter We have used the 3-in-1 auxiliary inverter for the project, which consists of a DC/DC converter, a DC/AC oil pump, and a DC/AC air compressor. This integrated and lightweight design significantly reduces system weight and size. It not only offers a lightweight solution but also delivers substantial space, wiring, and cost savings for electric commercial vehicles. Result The e-powertrain system installed on the truck Our systems performed exceptionally well on the client’s 40-ton electric heavy trucks, earning high satisfaction from the client. As a result, they promptly initiated another project involving a 26-ton logistics truck (AGV) for port operations, utilizing our systems to efficiently transport goods between sites. Our Customizable Solution for Heavy-Duty Trucks For heavy commercial vehicles, we offer an extensive range of EV systems, including e-powertrains, batteries, chassis, braking systems, steering systems, and more. Our comprehensive solutions are designed to enhance fleet operational efficiency and elevate safety standards in heavy-duty transportation. Discover HCV solutions Contact Us Get in touch with us by sending us an email, using the Whatsapp number below, or filling in the form below. We usually reply within 2 business days. Email: contact@brogenevsolution.com Respond within 1 business day Whatsapp: +8619352173376 Business hours: 9 am to 6 pm, GMT+8, Mon. to Fri. LinkedIn channel Follow us for regular updates > YouTube channel Ev systems introduction & industry insights > ContactFill in the form and we will get in touch with you within 2 business days.Please enable JavaScript in your browser to complete this form.Please enable JavaScript in your browser

E-axles that integrates motors, MCU , transmission system electric drive axle
Heavy Transport, Technologies

Introduction of the Electric Drive Axle for Heavy Duty Trucks

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Introduction of the Electric Drive Axle for Heavy Duty Trucks Sales of electric trucks have continued to rise in 2023 compared to 2022, driven by strong and ambitious government policies. For heavy-duty vehicle manufacturers, adopting a reliable and powerful electric powertrain system is crucial to staying competitive in this rapidly expanding market. As demand for sustainable transportation grows, integrating advanced electric systems will be key to their long-term success. The Evolution of the Electric Drive Axle for Heavy Duty Trucks The evolution of heavy-duty trucks has gone through three distinct phases, with a vision of the future of electric mobility shaping the landscape. First, traditional fuel-powered trucks dominated the roads, with cabs that were flat and high drag coefficient. These trucks relied on engine-based power systems located at the bottom of the cab. The next phase saw the emergence of gas-electric heavy-duty trucks, which retained the central drive model but swapped the engine for electric motors. However, these vehicles retained conventional propulsion systems that were bulky, inefficient, and compromised cargo space due to rear-mounted battery boxes. Today, all-electric heavy-duty trucks typically use the electric axle as the e-powertrain system. EV solutions with electric drive axles provide increased transmission efficiency and space flexibility. At the same time, cabin structures are redesigned to lower the center of gravity and improve aerodynamics. Why The Electric Drive Axle is a Better Choice for Battery-Electric Trucks Building on the advanced design of the electric axle drive system, the structural design of the chassis for pure electric heavy-duty trucks can be further optimized, resulting in more efficient use of space. For example, all-electric heavy-duty trucks using our e-axle solution can eliminate traditional driveshafts, allowing the chassis structure to be redesigned to accommodate the battery spread flat across the chassis. This layout has many advantages: Placing the battery flat at the bottom allows for a larger battery capacity, extending the range while minimizing intrusion into the cargo area. By using a box-shaped beam frame structure, the battery pack is placed within the box frame structure, ensuring both battery safety and full utilization of the chassis load capacity. Lowering the vehicle’s overall center of gravity reduces the risk of rollover during cornering and improves driving stability and maneuverability. The overall appearance of the vehicle is improved. Analysis of Different Electric Powertrain Systems for Heavy Trucks At present, the primary e-powertrain configurations for electric heavy trucks encompass several distinct forms: Different configurations of electric powertrains for heavy-duty trucks Analysis of configuration characteristics of different electric drive axles Comparison of dual-motor central drive and dual-motor distribute drive systems An Example of Our Electric Drive Axle for Heavy Duty Trucks Let’s take our 360 kW eAxle as an example, which is suitable for 6×4 and 4×2 tractors and heavy-duty trucks. Compared to similar eAxle products on the market, our eAxle integrates two motors, providing higher system power and torque with a smaller footprint, and has 100% regenerative braking capability, eliminating mechanical differentials. This results in lower space requirements, weight, and cost. Our electric drive axle installed on the heavy-duty truck Additional Safety Redundancy In addition, our distributed drive system minimizes layout losses, reduces weight, and incorporates fault and safety strategies. The two drive systems are completely independent, consisting of a motor + 2-speed AMT and wheel-side reducer, using electronic differential technology and independently controlling the left and right drive systems. In the event of a single motor failure, the other motor can continue to operate normally, ensuring system safety. 23% System Weight Reduction Weight of different electric powertrain solutions for heavy trucks In contrast to the central drive system, our distributed drive system has achieved a weight reduction of 23.6%. Similarly, compared to the motor gearbox integration system, our distributed drive system has managed to reduce weight by 23.9%. Good Passability The distributed drive system boasts a 7.3% increase in ground clearance compared to the central drive system. Moreover, it achieves an even greater elevation of 11.7% when compared to the motor gearbox integration system. Higher Transmission Efficiency Compared to the central drive system, our distributed drive system demonstrates a 6% enhancement in overall transmission efficiency. High Security Currently, heavy-duty trucks are only equipped with ABS and lack ASR, ESC, and EDL. With our EV motor’s electronic differential system strategy control, heavy trucks can be equipped with ASR/ESC safety configurations, improving vehicle traction, stability, and safety. Technical Parameters for Brogen Electric Drive Axle for Heavy Duty Vehicles Our e-axle for heavy trucks showcased at Automechanika Shanghai 2023 Motor power (peak/rated): 2×180 kW / 2×80 kW Motor speed (max.): 9500 rpm Motor torque (peak/rated): 2×520 N.m / 2×260 N.m Maximum output torque: 50000 N.m Rated voltage: 540 VDC Axle weight: 950 kg Rated axle load: 13000 kg Wheel speed (max.): 620 rpm Gear ratio: 49.4/15.3 Solution Advantages The dual motor structure ensures uninterrupted power during gear shifts. Reduces vehicle weight by 300 kg, boosting loading capacity. A compact design saves chassis space and lowers the center of gravity for better stability. Maximum output torque of 50,000 N.m, ideal for 4×2 tractors. Passed 1 million load-bearing tests with 2.5 times load capacity, ensuring reliability. Equipped with ASR function for enhanced grip on slippery surfaces, ensuring safer driving. Relevant Solution All Posts EV Industry EV Products EV Projects Electric Axle for Heavy-duty Truck Read More Contact Us Get in touch with us by sending us an email, using the Whatsapp number below, or filling in the form below. We usually reply within 2 business days. Email: contact@brogenevsolution.com Respond within 1 business day Whatsapp: +8619352173376 Business hours: 9 am to 6 pm, GMT+8, Mon. to Fri. LinkedIn channel Follow us for regular updates > YouTube channel Ev systems introduction & industry insights > ContactFill in the form and we will get in touch with you within 2 business days.Please enable JavaScript in your browser to complete this form.Please enable JavaScript in your browser to complete this form. Name * FirstLast Work Email *Company Name *Your Project Type *– Please select –Car, SUV, MPVBus, coach,

axial flux motor on mixing tank
Heavy Transport, Specialty Equipment

Concrete Mixer’s Mixing Drum Electrification Project

Heavy Transport, Specialty Equipment /

Client:  A concrete company Demand:  An EV solution for their 22 concrete mixer trucks to save fuel costs Introduction:  In 2022, a concrete company approached us and wanted an EV solution for their concrete mixer trucks to reduce the fuel costs.   Challenges Faced by the Concrete Company:  In the concrete mixer industry, as long as the mixing tank is turning, the engine cannot be turned off. This has been a persistant challenge, leading to high fuel consumption. Between 36% and 70% of the operating conditions for concrete mixers involve idling. Although they operate for 12 to 14 hours a day, only half of that time is spent in actual motion. Prolonged idling not only significantly increases fuel consumption but also necessitates frequent engine maintenance, reducing the lifespan of the vehicles. The Axial Flux Motor Solution for Concrete Mixer:  Starting in 2022, they implemented our EV system using axial flux motors. The system replaced the traditional hydraulic transmission of concrete mixers with an electrically powered attachement, achieving a separation of engine power and mixing drum power. During loading, unloading, or normail driving, the system’s onboard power battery provides the rotating power for the mixing drum autonomously, eliminating the reliance on engine power. Consequently, during vehicle idling, engine shutdown no longer affects the drum’s rotation, allowing the air conditioning system to function normally and resulting in a significant reduction in fuel consumption. Morever, the system incorporates an energy-efficient loop mechanism that automatically collects surplus power from the engine during vehicle operation to recharge the battery. As a result, the system minimally draws on the engine’s power, further enhancing fuel efficiency. Result:  After almost a year of practical application, the results speak volumes: some trucks have achieved monthly fuel cost savings of up to $1000. Despite the inital investment required for the system, the company anticipates a swift return on investment, with costs recovered within a few months. Contact us We provide EV solutions for commercial vehicles, including buses, vans, light-duty trucks, heavy-duty trucks, mining trucks, vessels, and other construction machinery. If you’re looking for an EV solution for your fleet, you can contact us at contact@brogenevsolution.com. We usually respond within 2 business days.

Axial Flux Motor on Concrete Mixer Truck
Heavy Transport, Specialty Equipment

All Electric Concrete Mixer Truck Project

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Client:  A concrete mixer truck manufacturer Demand:  An electric axle solution for 31-ton heavy-duty all-electric concrete mixer trucks Introduction:  The electrification trend in commercial vehicles extends to concrete transportation, driven by a dual desire for environmental sustainability and cost savings. Facing the challenge of high fuel costs, concrete mixer truck manufacturers seek innovation solutions to optimize efficiency and reduce operational costs. Description:  In 2023, a leading concrete mixer truck manufacturer approached us for an EV solution for their fleet’s 31-ton heavy-duty requirements. Understanding the industry’s need for cost-effective electrification, our experienced experts recommended the e-axle solution with axial flux motors for heavy-duty trucks to meet their demands. The 460 kW E-Axle Solution for the Electric Concrete Mixer:  Our integrated e-axle system features two axial flux motors, each with 230 kW power. With the maximum power of 460 kW, the drivetrain system achieves a wheel end transmission efficiency exceeding 96%, and the maximum gradeability reaches 50%. This also helps effectively increase the cruising range. Benefits of the E-Axle Solution With Axial Flux Motors:  1. Enhanced transmission efficiency and range: since the weight and size of the axial flux motor is 50% that of the traditional radial flux motor, this e-axle system uses the three-speedautomatic transmission. The first, second, and third gears each have a two-stage transmission. While significantly improving transmission efficiency, the system operates in the high-efficiency range at almost any vehicle speed. 2. Dual-mode shifting: the dual-mode shifting mode can achieve differential shifting between the front and rear axles as well as power compensation. There’s no interruption of power to the vehicle during the shifting process, with a shift response time of less than 0.6 seconds. 3. Optimized vehicle layout: thanks to the use of the axial flux motors, this solution offers a more spacious vehicle layout, allowing the entire vehicle traction battery pack to be positioned under the vehicle’s main beams. As a result, the electric concrete mixer truck’s center of gravity is lowered by more than 100 mm compared to conventional gasoline-powered vehicles. And it’s 130 mm lower compared to similar all-electric concrete mixer trucks from other brands. Thus this fully electric concrete mixer truck has better roll stability, ensuring safer driving. Results:  The application of the lightweight and more efficient axial flux motor system has enabled this 31-ton new energy concrete mixer truck to achieve a range of 260 km (according to steady-speed method), with an actual operational range of up to 180 km, significantly outperforming similar products on the market. A drive of this all-electric concrete mixer truck remarked, “This electric truck has strong power and is comfortable to drive, just like driving a car. Plus, charging it once at night is basically enough for a day’s use, and charging speed is also very fast, almost done in an hour.” Contact us We provide EV solutions for commercial vehicles, including buses, vans, light-duty trucks, heavy-duty trucks, mining trucks, vessels, and other construction machinery. If you’re looking for an EV solution for your fleet, you can contact us at contact@brogenevsolution.com. We usually respond within 2 business days.

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