In this blog post, I embarked on a fun project to create a DIY power bank using two 10,000mAh lithium cells I had lying around, and a charge control board. After some tinkering and tests, I learned that measuring power bank efficiency requires more than looking at amp-hours. With some help from a friend, I found out our power bank was actually over 93% efficient, a pretty fantastic result. Despite some challenges with certain devices not drawing their full potential power from my power bank, I concluded that while it was an enjoyable project, buying a ready-made power bank might...
This blog post reveals how you can salvage lithium cells from the many discarded, disposable vape devices that get littered in our towns and cities. With a pair of pliers and some bravery, I managed to rescue some decent batteries, which still had a good amount of power in them. However, with no in-built protection in these cells, I also demonstrated the importance of adding a battery protection board to ensure they are safe for use in various projects. Conclusively, through rummaging in the trash, I not only acquired useful components for my projects but also took a step towards...