AC vs. DC. The most common DC voltages are 5V (USB) and 12V (batteries), while the most common AC voltages are 120V and 230V. Is battery always DC? Batteries, fuelcells and solarcells all produce something called direct current (DC). The … Continue reading →

Faster Cooling/Heating Last but not least, the inverter AC is able to cool or heat your room faster than the non-inverter. This is due to the fact that in the beginning of the process, the inverter uses more power than … Continue reading →

If your laptop needs a battery attached to a boot, hold down the power button for 30 seconds. Reconnect the battery, then allow the laptop to charge for an hour without powering it. Your battery should be reset after this … Continue reading →

Originally Answered: Why does some transformers have 3 wires and the other side has two wires? They may actually have more – the third wire on the secondary side is usually a center tap which may be used to obtain … Continue reading →

For most desktop PCs, you can expect a minimum three-year lifespan. However, most computers survive five to eight years, depending on the upgrading components. Maintenance is also critical, as dust is very problematic for PC components. Can a computer last … Continue reading →

How to Open an AC Adapter Unplug the power cord from the wall outlet or power strip, if it is still plugged in. Disconnect the power cable from the laptop, if necessary. Place the end of a putty knife in … Continue reading →

A transformer is an electrical device that uses electromagnetic induction to pass an alternating current (AC) signal from one electric circuit to another, often changing (or “transforming”) the voltage and electric current. Which device is used to change the voltage? … Continue reading →

As long as you’re using the right cable or the right wireless standard (and it’s difficult not to), you can use just about any charger with your phone. Can I use any USB-C charger for my phone? Any device that … Continue reading →

Should you wish to become an online customer, and have access to your account details online 24 hours a day, please follow the registration process: Have your most recent bill available as you will be asked for certain information for … Continue reading →

Can I install my own prepaid electricity meter? The simple answer is no, you cannot install your own prepaid electricity meter. While you can buy a prepaid electricity SUB meter, you cannot install it yourself. To install a prepaid electricity … Continue reading →

To calculate voltage drop: Multiply current in amperes by the length of the circuit in feet to get ampere-feet. Circuit length is the distance from the point of origin to the load end of the circuit. Divide by 100. Multiply … Continue reading →

If the light is orange, you’re charging. If it’s green, your battery is full, and you’re running off the power adapter. Even if it doesn’t turn on, it should still have the light if the problem isn’t with the battery. … Continue reading →

In DC circuits, the positive pole is usually marked red (or “+”) and the negative pole is usually marked black (or “−”), but other color schemes are sometimes used in automotive and telecommunications systems. On a car battery, the positive … Continue reading →

9v batteries. The most common types of batteries for TENS units are 9v batteries, AA batteries, and lithium-ion batteries. Can you use a regular 9 volt battery in a TENS unit? Yes, any 9V battery, including this one, will work … Continue reading →

Can you fix iPhone charger cable? Repairing Broken iPhone Cables You can use electrical tape to try to fix the connection. If you have a soldering iron, you can actually repair the wiring though this can be quite difficult if … Continue reading →