Just below the “Mouse, keyboard & pen” heading, a battery percentage indicator will be shown next to the Bluetooth name of your wireless mouse. The battery level will be updated as you keep using the mouse. How do I know … Continue reading →

It is impossible to use a Li-Ion power bank as an UPS source by itself simply because Li-ion requires a separate controller to charge the batteries and they are completely disconnected from power output when charging. Can power bank be … Continue reading →

How to fix a USB port not working in Windows Restart the computer. Before following any of the steps below, we recommend restarting the computer. Check hardware. Check Device Manager. Laptop users. Check cables. Check hub. Disable USB power management. … Continue reading →

It can be used to charge a battery. Yes you can if the battery potential is less than the emf induced by dc motor. You need to rotate the motor with some speed by any external mechanical force. The motor … Continue reading →

The story about the exploding laptop is not an urban legend; it happens, but it’s statistically unlikely it will. Essentially, the laptop’s battery overheats to the point where a component reaches its ignition point. Can my laptop charger explode? If … Continue reading →

Direct current can come from multiple sources, including batteries, solar cells, fuel cells, and some modified alternators. DC power can also be “made” from AC power by using a rectifier that converts AC to DC. Can DC devices run on … Continue reading →

Are USB wall outlets worth it? A USB outlet is, therefore, worth it because you can plug in electrical fixtures and devices without drawing more power or raising your electricity bill. Even if you plug in a USB device from … Continue reading →

When the motor is powered by DC current, a magnetic field is created within the stator, attracting and repelling the magnets on the rotor. This causes the rotor to start rotating. To keep the rotor rotating, the motor has a … Continue reading →

However the iPad charger does and it s designed this way to allow different plug configurations for different countries. The iPhone charger that comes with US iPhones doesnt come apart. However the iPad charger does and it s designed this … Continue reading →

In theory the 12v 1.5A will charge a battery faster, because it can provide up to 18 watts to your device. The 5v 2A charger can only give 10 watts. Can I use a 5V charger to charge a 12V … Continue reading →

While you can run a semi passive PSU without a fan at a lower wattages, if the fan needs to spin and there is no fan, you run the risk of the psu shutting off or blowing up. Can I … Continue reading →

If the PSU is malfunctioning, it can cause heat to built up to the point where the materials inside start to combust. If this occurs, users should immediately discontinue using the computer and, if safe, unplug it from the outlet. … Continue reading →

DC generators are more complex than AC generators. In fact, DC cannot be generated at a very voltage due to the commutation problem. 2. Although DC transmission and distribution more simpler and low expensive than the AC but DC cannot … Continue reading →

I recently bought a transferable car battery charger for when my car’s battery is dead. What I want to know is if I can go ahead and use that car battery charger to charge my 12v 7ah battery for my … Continue reading →

The “never charge more than 80%” is really not scientific. Typically, a lithium-ion batteries’ lifespan is 2 – 3 years, which is about 300 to 500 charge cycles as rated by manufacturers. How long does a charging brick last? On … Continue reading →