A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat. Does a potentiometer … Continue reading →

Motherboard Troubleshooting Is the motherboard receiving power? Check the BIOS/UEFI settings (covered in Chapter 4) for accuracy. Check for overheating. Check the motherboard for distended capacitors. Reseat the CPU, adapters, and memory chips. Remove unnecessary adapters and devices and boot … Continue reading →

A DC connector (or DC plug, for one common type of connector) is an electrical connector for supplying direct current (DC) power. What is the power supply plug called? A power cord, line cord, or mains cable is an electrical … Continue reading →

For Japan there are two associated plug types, A and B. Plug type A is the plug which has two flat parallel pins and plug type B is the plug which has two flat parallel pins and a grounding pin. … Continue reading →

To read diagram: The center positive drawing on the left indicates that the center (also known as the tip) of the output plug is positive (+) and the barrel (ring) of the output plug is negative (−). How do you … Continue reading →

However you can charge 48v with a 12v charger it will just take a lot longer also the slower you charge your battery the more life you will get out of it charging at a high rate does damage battery … Continue reading →

SMPS incorporate higher efficiency, reduced weight, smaller size, increased durability, and they allow a more extensive input voltage range. However, the linear power supply is typically more cost-effective, less capable, larger in size, weighs more, and less efficient. Is SMPS … Continue reading →

If the low voltage is outside this range, it can damage the power supply and possibly the battery or laptop. This problem can be mitigated with an Uninterruptible Power Supply, or by keeping your laptop and charger unplugged during periods … Continue reading →

A 6 volt battery can always be charged at 2 amps. If you’re dealing with a deep cycle battery, you must charge it at a low amperage like 2 to 4 amps. How long does it take to charge a … Continue reading →

So are USB cables universal? USB cables that share the same type are universal. However, there are now different types of USB cables and ports that range in shape and size, and therefore, are not universal with other type USB … Continue reading →

To recap: shorter, infrequent blue sparks aren’t anything to worry about. But extended orange or yellow sparks that you see more often are bad! Is it normal to see a spark when you plug something in? When this happens, there’s … Continue reading →

If there is no fuzz in there, then it is likely, that the contact “tang” is slightly bent – usually caused by using the phone with the cable plugged in, which places pressures on that thin contact plate. How do … Continue reading →

iPhone chargers mainly stop working due to being old and worn out after several usage throughout time. Sometimes they can even stop working due to strain on the plastic outer layer and cause the wires to be exposed and easily … Continue reading →

Got a new Mac? Do these 10 things first Set up your Apple ID. There’s a good chance that if you’re buying a Mac for the first time, you already use an iPhone or an iPad. Back up early and … Continue reading →

How can I charge my phone when there is no current? Keep your phone on “Low Power Mode.” This setting will use far less juice. On an iPhone, go to “Settings,” scroll down to “Battery” and turn on “Low Power … Continue reading →