Yes, USB Chargers will eventually wear out. Here’s how to prolong the life of your charger: Pay attention when plugging in the USB charger and disconnecting. Do not bend any wiring. How long do phone chargers usually last? On average, … Continue reading →

One milliampere is equal to 1/1,000 of an ampere, which is the electrical current equal to the flow of one coulomb per second. The milliampere is a multiple of the ampere, which is the SI base unit for electric current.One … Continue reading →

It’s official – Dewalt announced today that their 18V NiCad cordless power tool system will be discontinued, and they expect for remaining NiCad batteries to be phased out by March 2022. Dewalt also notes that their 18V XRP Li-ion battery … Continue reading →

The LED backlight illuminates the pixels, from behind, making them appear richer and brighter. Not all LCDs have a backlight, and for those that do, not all of them utilize LED backlighting. Some displays also use CCFL lighting or Cold-Cathode … Continue reading →

In the 1890s, these tools were sold as electrical cigar lighters (Cigarrenanzünder), and later as Zigarrenanzünder in the major German warehouse catalogues. Probably in the 1920s they were renamed “cigarette lighters”, as cigarettes overtook cigars in sales. Why do cars … Continue reading →

Although a cable has two differently shaped connectors, it takes the name of whichever connector is not USB Type-A. That’s because USB Type-A is the most commonly used USB port and connector so an alternative type is the most distinguishing … Continue reading →

Can I use a 15v plug to a 12v device receptor? In the case of cooling fans the answer is generally yes. Most cooling fans accept a variable DC voltage of between 6V to 23V. Can a 12V fan run … Continue reading →

An AC power source supplies an alternating electrical current that helps power or test a separate piece of equipment by simulating electrical grid interruptions, harmonics, surges, or other events that could cause a device under test (DUT) to malfunction. What … Continue reading →

For the simple and often cheaper battery chargers, the charge current is specified for the nominal battery voltage (= 12 or 24 V). Charging a battery requires a higher charge voltage, namely 14.4 or 28.8 V. Is a phone charger … Continue reading →

When reverse polarity occurs, the flow of electrons (wrong direction) are causing the gates to turn on/off with the opposite intent, which could cause cascading errors in the circuit. To prevent that, diodes are used to act as a fail-safe. … Continue reading →

While away from home, Nintendo Switch can be charged by plugging the AC adapter into the console’s USB Type-C connector. Where do I plug in my AC adapter? Connect AC Adapter Connect AC Adapter. Securely plug the power cord (for … Continue reading →

A car battery is one of the best ways to charge your 12V cordless drill battery. You don’t need to charge your car battery as that will be automatically charged by your car alternator when you drive. Can I charge … Continue reading →

DC cumulative compound motor having high starting torque up to 450% depending upon the degree of compounding. The speed regulation is varying up to 25 ~ 30%. That’s why these motors are used in elevators. Which motor is suitable for … Continue reading →

So best way to check them out is to measure the armature resistance using multimeter or ohmmeter. It should be high enough, as you know what, they have thin armature wires. If it becomes too low, then the armature is … Continue reading →