• Charging Station Locker Cargalocker , a business opportunity

    The PowerSign Charging Station Locker CARGALOCKER, is a modern unit for recharge the battery of your device fast and securely. Actually, almost 95% of people used a mobile device, and they are running where to recharge. PowerSign Charging Station Locker CARGALOCKER is more than just a simple cha... View Post
  • How to calculate theoretical USB output capacity

    A simple equation can be used to convert the 3.7V into 5V. ACTUAL 5V mAh = 3.7 X Advertised Capacity / 5 For a 10,000mAh powerbank – 3.7 X 10,000 / 5 = 7,400 mAh So a 3.7V 10,000 mAh powerbank really only supplies 7,400 mAh at the 5V USB connection. So straight out of the box is a 23% reduction i... View Post