Ellis Gibson (B.Sc. in Mechanical Engineering)

To make an alkaline manganese dioxide battery, gather a zinc anode, manganese dioxide, and potassium hydroxide. Mix manganese dioxide with water and filter it for clarity. Assemble the battery by layering the materials in a cylindrical shape with a carbon rod in the center. Follow safety precautions during the assembly process. Start by assembling the … Read more

Click the Bluetooth icon in the menu bar. A dropdown menu will display your connected devices. Find your AirPods in the list. You will see the battery levels for both the AirPods and the charging case next to their names. This lets you easily check their battery percentages. In addition, if you are using non-Apple … Read more

Use an AA battery, a neodymium magnet, and copper wire to build a simple homopolar motor. Connect the battery to the wire and place the magnet at the right distance. This DIY experiment shows magnetic levitation principles. It’s an engaging way to learn about current usage and magnetism with minimal materials. Begin by winding the … Read more

To make a nickel zinc battery, combine nickel hydroxide with a sintered zinc oxide electrode. Create a paste for the negative electrode materials. Use potassium hydroxide (KOH) as the electrolyte. This battery is rechargeable and offers high power density. Follow a DIY tutorial for detailed instructions. You need zinc powder, nickel hydroxide, a suitable electrolyte, … Read more

To make a zinc-air battery, mix 50g of sodium hydroxide with 150mL of water for the electrolyte. Use a zinc sheet as the anode and a copper piece as the cathode. Include a separator soaked in the electrolyte. This DIY process is cost-effective and requires simple materials for construction. To make a rechargeable zinc air … Read more

To make a wireless charging battery pack, gather tools and components. Use 18650 Li-ion batteries, a boost converter, and a wireless charging module. Assemble the circuit carefully, ensuring compatibility with the receiver. Finally, test the output voltage with a multimeter. Follow these steps for a functional DIY power bank. Begin by connecting the wireless charging … Read more

To make a wind-up battery, use a hand-crank generator or wind-up flashlight. Connect the generator to a rechargeable battery. When you crank the handle, it converts mechanical energy into electrical energy. This method provides a power source for charging devices during emergencies without available electricity. Start by securely connecting one end of the motor to … Read more

To create a website that doesn’t consume much battery, optimize browser settings. Limit background activity in browsers like Chrome. Use dark mode to save energy. Enable energy saver modes and server-side decoding. Close unused tabs and remove unnecessary extensions. Regular updates also help improve performance and prevent battery drain. Minimize plugins and scripts as well. … Read more

To make a watch battery work again, place the watch in a warm airing cupboard overnight. You can also gently tap the watch or move the hands to encourage movement. For lasting results, consider replacing the battery as soon as the watch stops functioning. Regular watch maintenance helps ensure optimal battery performance. To revive a … Read more

To make a watch battery stay put, choose the correct size battery and check that the clamp is straight. Use quartz cell stoppers or plastic tabs to secure it. Maintain a clean workspace and remove any unnecessary haptic feedback features to extend battery life. For optimal results, consult a watch repair professional. Additionally, inspect the … Read more