Ellis Gibson (B.Sc. in Mechanical Engineering)

To extend the battery life of an Arduino Micro Pro, lower the voltage from 5V to 3.3V, use sleep mode, and turn off unnecessary features. Measure current consumption to choose the right 18650 battery. Implement an RTC to wake the Arduino when required. Plan for a battery capacity twice your needs to compensate for aging. … Read more

Connect a copper wire to the battery terminal with electrical tape. Attach the other end to the bottom of the LED bulb. Any household battery, such as AA, AAA, C, or D, will work because they provide 1.5V. This voltage is enough to light up the LED bulb. Enjoy your simple electrical project! If you … Read more

To make an Android phone treat an external battery as primary, use third-party apps that manage power sources. These apps can display the battery percentage from your power bank. Keep in mind, changing battery indicators may need a rooted Android device. Always prioritize safety when connecting power sources. Also, consider enabling power-saving modes on your … Read more

To make an iron flow battery, mix vanadium pentoxide and sulphuric acid in a single tank. Use sheet steel as electrodes, separated by a membrane. This setup allows for a cell voltage of about 1.5 volts. The gravity flow method enables easy recharging. This project is suitable for DIY enthusiasts and off-grid energy solutions. Next, … Read more

To make an inverter from a car battery, follow these steps: 1. Obtain a reliable power inverter. 2. Connect the inverter to the battery’s terminals, using appropriate connectors. 3. Plug in your household appliance. This setup changes 12 volts DC from the battery into 110 volts AC, allowing you to power various devices safely. Start … Read more

To make an electromagnet from a car battery, wrap insulated copper wire around an iron screw. Then, connect the wire ends to the battery terminals. The electricity flows through the wire, magnetizing the screw and enabling it to lift small metal objects. Always follow safety precautions when handling the battery. Next, connect one end of … Read more

To make an electromagnet powered by a boat battery, wrap insulated copper wire around a large iron nail. Connect one end of the wire to the battery. Ensure tight wrapping for stronger magnetism. Use paper clips to test its pull strength. Monitor for heat. Always prioritize safety when working with electrical components. Next, attach the … Read more

To make an AC battery pack, gather key components like a 12V battery, an inverter, and a solar panel. Connect the battery to the inverter to turn DC into AC. Add a charge controller for safety. This DIY project lets you power devices portably and affordably. Follow clear guides for detailed instructions. Once the inverter … Read more

Alkaline batteries can leak when overheated, but they rarely explode. Short-circuiting may produce heat and gas buildup, leading to leaks or minor explosions. To minimize risks, avoid damaging the battery and do not overcharge it. Always follow safety guidelines to ensure safe experimentation. The causes of an explosion often stem from misuse or improper handling. … Read more

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