La BATTERIE la MOINS CHÈRE (4€ !!) et la PLUS PUISSANTE !

Summary

The video shows two French YouTubers building a DIY portable battery bank using a discarded 3.7V lithium-ion battery cell. They add a USB-C PD controller board to enable 18W fast charging of phones and laptops. After successfully testing charging speeds, they 3D print an enclosure to house the components. The compact final product can recharge half a phone and power a laptop despite its small size. They emphasize sharing the project so viewers can build their own ultra-portable, USB-C PD compatible power bank for only $5.

Takeaways

• 🚀 The video demonstrates how to create a powerful and portable battery charger using 18650 batteries, commonly found in electronic cigarettes and power tools, to charge smartphones and laptops via USB-C.
• 🔧 With simple soldering skills, viewers can build an ultra-mobile and high-performance charger for their devices, significantly cheaper than retail options.
• 📱 The DIY charger, costing around 5 euros for materials, undercuts the market by leveraging affordable, sometimes reconditioned, 18650 batteries offering 2500 to 3000 mAh capacity.
• 🛏️ The charger's design is based on 3D printing and electronic assembly, making it a highly customizable and adaptable project for enthusiasts.
• 📦 Utilizing USB-C and power delivery standards allows the charger to efficiently power devices, with the project specifically demonstrating compatibility with MacBook charging requirements.
• 💡 The project includes a detailed discussion on the energy capacity and output of 18650 batteries, highlighting their capability to deliver high current for demanding electronics.
• 💻 The DIY charger is tested to successfully recharge a MacBook and a smartphone, proving its effectiveness and versatility.
• 📖 Links and resources are provided for viewers to source materials and further explore the project, including a link to a related video by GR Scott for more technical insights.
• 🖥 The final product showcases a compact, reliable design that belies its DIY nature, potentially rivaling commercial products in form and function.
• 📚 The script concludes with a call to action, encouraging viewers to subscribe, like, and share the video, highlighting the importance of community support for DIY projects.

Q & A

What is the main purpose of the video?

The video demonstrates how to create a highly portable and efficient battery pack for charging various devices, emphasizing affordability and DIY techniques.

What type of battery is used in the project, and why is it preferred?

The project uses an 18650 battery, preferred for its wide availability, affordability, and compatibility with electronic cigarettes and various electronic tools, including those from brands like Tesla, Ryobi, and DeWalt.

What is the capacity of the batteries used in the video, and what makes them special?

The batteries used have capacities of 2500mAh and 3000mAh. They are special because they can deliver high current in bursts and continuously, making them suitable for powering devices that require a lot of energy.

What USB standard is targeted for compatibility, and why?

The project targets compatibility with the USB Power Delivery standard, specifically USB-C, due to its ability to deliver up to 60W of power, making it suitable for charging laptops and other high-power devices.

How is the battery pack tested for charging capabilities?

The battery pack is tested by using a setup that simulates charging a MacBook, measuring the output to ensure it meets the necessary power delivery specifications for USB-C devices.

What are some of the devices mentioned that can be powered by the created battery pack?

Devices mentioned include smartphones, laptops (specifically MacBooks), ultrabooks, and even a camera, showcasing the battery pack's versatility.

What is the significance of the event mentioned in the video, and what topics does it cover?

The event is a masterclass at the Cité des Sciences et de l'Industrie in Paris, focusing on DIY YouTube creation, video production, and maintaining a weekly video schedule on such topics.

What is the total cost mentioned for creating the battery pack?

The total cost mentioned for creating the battery pack is approximately 5 euros, highlighting the project's affordability.

How does the video demonstrate the design process of the battery pack's enclosure?

The video showcases the iterative design process of the battery pack's 3D printed enclosure, detailing improvements made across several versions to achieve the final design.

What are the key benefits of the DIY battery pack highlighted in the video?

Key benefits include its compact size, affordability, high efficiency, and the ability to charge and power a wide range of devices, making it an effective and versatile power solution.