
Kapalı
İlan edilme:
Teslimde ödenir
Project Description I’m looking for an experienced freelancer to design a single-cell (1S) 18650 battery pack that includes an integrated BMS and a physical on/off switch. This is for a real, functional product — not a school project. The design must be safe, compact, and production-ready, with proper protection and clean wiring. Scope of Work Design a 1S 18650 battery pack Select or recommend an appropriate BMS (over-charge, over-discharge, short-circuit protection) Integrate a physical on/off switch (rocker, slide, or toggle — open to recommendations) Provide a clear wiring diagram Recommend suitable components (BMS, switch, holder or welded tabs) Ensure the design allows safe charging through the BMS Requirements Proven experience with 18650 battery pack design Strong understanding of Li-ion battery safety Experience with BMS wiring and protection circuits Ability to provide clear documentation and diagrams Deliverables Wiring diagram (clear and labeled) Component list with part numbers Brief explanation of system operation Safety notes and best practices One fully assembled and functional prototype battery pack Timeline Looking to start immediately
Proje No: 40092088
20 teklifler
Uzaktan proje
Son aktiviteden bu yana geçen zaman 1 ay önce
Bütçenizi ve zaman çerçevenizi belirleyin
Çalışmanız için ödeme alın
Teklifinizin ana hatlarını belirleyin
Kaydolmak ve işlere teklif vermek ücretsizdir
20 freelancer bu proje için ortalama $158 USD teklif veriyor

With over ™12 years of solid experience in the realms of Digital Motor, Analog and Electronic Design and Power Electronics, I bring a unique blend of skill to your 18650 battery cell design project. My experiences extend to every facet of the design, be it the selection of appropriate BMS, rcommissioningthe physical on-off switch (options unlimited) or sketching out clean wiring diagram. Wiring diagramming is my forte and listed within my specialty is a demonstrated understanding of Li-ion battery safety and an ability to provide articulate documentation displaying systeoperationon, best practices and safety notes. My skills further extend into providing a complete list of components with part numbers to ensure impeccability in the design.
$140 USD 7 gün içinde
7,1
7,1

With a strong background in circuit design, encompassing everything from power supply circuits to multilayer designs for embedded systems such as the one you are looking for, I am confident that I can create a custom 18650 battery cell pack to match your exact needs. My experience extends not only in PCB design but also comprehends all areas necessary for this project including firmware development and RF design & analysis. Specifically, I have worked on numerous Li-ion battery pack designs and possess an inherent understanding of Li-ion battery safety - a crucial factor for such a project. Moreover, having extensive knowledge and experience working with various microcontrollers and implementing communication protocols like UART, SPI, Ethernet, USB, CAN together with my proficiency in wireless technologies such as Wi-Fi and Bluetooth makes me well-suited to integrate a physical on/off switch while providing safe charging through the BMS. Throughout my career, my actions have been aligned with transforming ideas into reality, and meticulousness is one of the key elements I rely on. Having said that, I can assure you that your project will not be treated merely as a task; rather it will be tackled with great care to create a safe, compact and production-ready 1S 18650 battery pack including integrated BMS and physical on/off switch. Let's connect soon to discuss how my skillset can best serve you!
$140 USD 7 gün içinde
6,3
6,3

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!
$140 USD 7 gün içinde
5,5
5,5

As an experienced Electrical Engineer with a Master’s in Embedded Systems, I have a dedicated expertise in circuit design and PCB layouts, making me ideal for your 18650 battery project. With a strong background in firmware development and understanding of Li-ion battery safety, I have designed several battery packs including the integration of BMS and physical on/off switches. My proficiency extends to selecting suitable components, ensuring clean wiring, and providing detailed documentation. I am well-versed in dealing with concerns like over-charge, over-discharge, and short-circuit protection to guarantee the safety of the overall system. These qualities combined facilitate my ability to deliver a production-ready design that aligns with your vision. Additionally, my well-rounded skills extend beyond the electrical aspects as well, specializing in IoT product engineering and mechanical CAD modeling if required. My comprehensive perspective will ensure your project is not only functional but has a sleek design to complement it. I'm confident that my broad set of skills can provide you with the efficient delivery of a safe and compact prototype 1S 18650 battery pack with all your requested features included.
$425 USD 7 gün içinde
5,1
5,1

Hi, I'm very glad to have an opportunity to help you with PCB design. This job is very appealing to me because I have a lot of experience in PCB design of various kinds of the electronic devices. Especially, IoT devices I also have enough experience in high speed multi-layer routing and RF impedance control. I'm very familiar with Altium, Eagle and KiCAD. I have my own Altium license and Eagle license. So if you hire me, I can start work immidiately. Also, I have 5+ years experience in developing an FW for various MCU. I'll provide you all design files and manufacturing files (part library, schematic, layout, BoM, pnp, ODB++, assembly document, gerber, DRC document, and 3d model) Also, I can support you for PCB manufacturing and PCBA from our local company(READA company) in Shenzhen, China if you want. We will provide high-quality in PCB manufacturing and PCBA, reliable part sourcing, functional test according to customer's specifications, and quick shipping. Also, I can help you to order PCBs from JLCPCB, PCBWay and SEEEDStudio if you want. I'm confident my skills and experience in PCB design make me a good candidate for your job. Looking forward to hearing from you soon. Kind Regards. Ting
$140 USD 7 gün içinde
4,9
4,9

Hi, I understand you need a safe, production-ready 1S 18650 pack with integrated BMS, physical on/off switch, and clean wiring suitable for real-world use. As an engineer with hands-on experience in Li‑ion 18650 pack design and BMS integration, I can deliver a compact layout that supports safe charge/discharge through the BMS and uses reliable, readily available components. APPROACH - Select a 1S BMS with OC/OD/SC protection matched to your target current - Define wiring: cell → BMS (B+, B−, P+, P−) → switch → load/charger - Recommend switch type and rating (rocker/slide) and holder vs welded tabs based on your enclosure and current - Build and test a prototype (charge, load, short/overcurrent behavior) DELIVERABLES - Labeled wiring diagram - Component list (BMS, switch, holder/weld tabs) with part numbers - Brief operation + safety notes (charging, storage, fusing, insulation) One fully assembled, tested prototype pack I can start immediately and typically complete design + prototype in about 10days after confirming your target load current and mechanical constraints. Best regards, Tobi Daniel
$400 USD 10 gün içinde
4,9
4,9

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq
$100 USD 7 gün içinde
3,6
3,6

Dear Client, We're thrilled to see your project and believe Neura Electronics, as experienced freelancers, can deliver it successfully and on time at a competitive price. We are expertise includes Embedded Systems, IoT, PCB Design, Robotics, Electrical, and Electricians. Looking forward to discussing further. Best regards, Neura Electronics
$40 USD 7 gün içinde
3,5
3,5

Coming straight to the point, I am Sakshi and I have hands-on experience with battery cell design, precisely 18650 cells. My understanding of Li-ion battery safety, BMS wiring and protection circuits is exceptional and this would make my overall deliverables strong and in line with your needs. To add value, I not only design but also take into consideration the production aspects keeping practicality and safety at the forefront. I understand the importance of providing proper documentation for a project of this nature. My competency in giving clear wiring diagrams, comprehensive component lists with detailed part numbers coupled with tailor-made brief on system operation ensures smooth implementation. We guarantee our deliverables are well labelled and provide safety notes and best practices necessary for a production ready product.
$35 USD 1 gün içinde
3,2
3,2

Hello there! I am Sumit Kumar, a seasoned freelance designer with substantial experience in circuit design, 2D/3D modelling, and animation. Although I haven't undertaken any projects of this nature specifically on this platform, I’ve worked extensively in the field and boast a highly impressive track record. Over the course of my career, I have demonstrated my proficiency across many software applications including Eagle and KiCad for PCB designing- skills that are directly transferrable to this project. Drawing from my knowledge of electrical engineering, I am well acquainted with battery systems design, BMS wiring, and protection circuits- all essential to developing a high-quality 18650 battery cell pack like you require. My understanding of Li-ion battery safety is particularly crucial for your product’s requirement to be safe and clean. Additionally. my comprehensive familiarity with various switch options coupled with my ability for clear documentation makes me a suitable fit for your project requirements. I believe that with my range of skills, experience, and my determination to produce the best possible work, I am equipped to handle your project efficiently from its design phase to producing a fully functional prototype battery pack
$33 USD 1 gün içinde
2,6
2,6

Hi there, I have hands-on experience designing safe, production-ready 18650 battery packs with integrated BMS protection. I can deliver a compact 1S pack with proper overcharge, overdischarge, and short-circuit protection, plus a reliable physical on/off switch. I'll also give you clear wiring diagrams, verified component recommendations, safety notes, and a fully functional prototype ready for real-world use. I’m available to start immediately and ensure the design meets practical and safety standards. Looking forward to working on this. Cheers, Michael
$112 USD 4 gün içinde
2,5
2,5

Hello, Drawing on my experience in Circuit Design, PCB Design and Prototyping, as well as Mechanical and Electrical Engineering, I assure you of my adeptness at crafting battery packs that are not only safe and compact, but also production-ready. My knowledge spans a wide range of fields from Robotics to IoT Solutions, which provides me with valuable insights into innovative systems. As we move through the various stages of this project together - designing the 1S 18650 battery pack with an integrated BMS, selecting a proper switch and ensuring easy charging - my expertise in delivering clear and labeled documentation becomes particularly relevant. I understand that one of your most immediate needs is for a thorough wiring diagram as well as a list of components with part numbers. My proficiency guarantees your satisfaction. Lastly, my ability to create and test prototypes is second to none. You can rest assured knowing that not only will I supply you with all the necessary information about this cutting-edge product, but I will also provide you with a high-performing fully assembled prototype that meets all your standards. Let us embark on this journey of turning your idea into reality. Thanks!
$300 USD 2 gün içinde
0,0
0,0

Hello there! Our team at RedBrick American Engineering is well-equipped to take on your custom 18650 battery cell project. With extensive experience in battery pack designs and prototyping, we guarantee a safe, compact, and production-ready 1S 18650 battery pack with an integrated BMS and physical on/off switch. We excel in Li-ion battery safety, BMS wiring, and protection circuits. Our deliverables will include a clear wiring diagram, component list, system operation explanation, safety notes, and a fully functional prototype. Let's kick off this project promptly to meet your timelines. How can we best move forward with the details? Cheers, RedBrick American Engineering
$30 USD 1 gün içinde
0,0
0,0

Hey , Thank you for sharing the job details. After going through the description, it’s clear you need someone confident with Battery Charging and Batteries and Circuit Design and can deliver clean, reliable results. That is exactly the kind of work done day to day, so this project is a great fit. Before getting started, there are a few points that would really help shape the best solution for you: Are all the mentioned skills and features mandatory, or is there any flexibility in the tech stack and scope? Is there any existing code, design, or documentation available, or should this be developed completely from scratch? What is your ideal timeline and any hard deadlines for milestones or final delivery? Why work with me? 1. More than 250 major projects completed, including complex, long-term engagements. 2. No negative feedback over the last 5 to 6 years, reflecting consistent quality and reliability. 3. 100+ recent major projects with 5-star reviews, showing that clients are not only satisfied but return with more work. Availability: 9 AM to 9 PM Eastern Time (full‑time freelancer, easy to collaborate and quick to respond). Portfolio: https://www.freelancer.com/u/syeds273 Recent, relevant work samples will be shared privately to protect client confidentiality. Please start the chat so we can finalize the project details, expectations, and the best execution plan. Regards, Syed.
$30 USD 5 gün içinde
0,0
0,0

Hi there, I understand you're seeking an experienced professional to design a compact and safe 1S 18650 battery pack, complete with an integrated BMS and physical on/off switch. The goal is to create a functional product that meets rigorous safety standards and is production-ready. This is an exciting challenge, and I’m confident I can deliver the solution you need. For your project, I propose leveraging my expertise in battery design to create a streamlined and effective battery pack. I will ensure that the BMS integrates seamlessly with your chosen switch, providing comprehensive over-charge, over-discharge, and short-circuit protection. I’ll provide a clear wiring diagram and a detailed component list, along with explanations of the system's operation. My focus will be on precision and safety, adhering to best practices in Li-ion battery management. Collaboratively, we can discuss and finalize the most suitable components while ensuring all design elements are compact and functional. What specific features are you envisioning for the on/off switch? https://www.freelancer.com/u/proggon Best regards, Wahaj Barlas.
$140 USD 7 gün içinde
0,0
0,0

Hello, I have extensive experience designing compact, safe 18650 battery packs with integrated BMS and user-accessible switches. I’ve delivered functional prototypes including over-charge/discharge protection, short-circuit safeguards, and clean, manufacturable wiring for single-cell and multi-cell configurations. My approach is to select a suitable 1S BMS, integrate a reliable on/off switch, produce a clear wiring diagram and BOM, and assemble a fully functional prototype ready for safe operation and testing. A few technical questions: • Preferred type of on/off switch (rocker, slide, toggle) and size constraints? • Any target maximum charge/discharge current or load requirements? • Should the pack include a holder or use spot-welded tabs for assembly? Thanks
$30 USD 2 gün içinde
2,3
2,3

cade, United States
Ödeme yöntemi onaylandı
Haz 17, 2020 tarihinden bu yana üye
$10-30 USD
$10-30 USD
$10-30 USD
$10-30 USD
$30-250 USD
€30-250 EUR
€30-250 EUR
€250-750 EUR
₹12500-37500 INR
$30-250 USD
$750-1500 USD
$30-250 USD
$250-750 AUD
$250-750 USD
₹1500-12500 INR
$25-50 USD / saat
$30-250 USD
$250-750 CAD
$15-25 USD / saat
€30-250 EUR
€30-250 EUR
₹1500-12500 INR
₹1500-12500 INR
$25-50 AUD / saat
$250-750 CAD