A lot of devices are powered by 12-volt DC electricity so they can be used while traveling. Typically, these products can only be operated in vehicles, because buildings are wired with alternating current. Is 12V current AC or DC? – … Continue reading →

line. IEC 60417-5007, the power-on symbol (line), appearing on a button or one end of a toggle switch indicates that the control places the equipment into a fully powered state. (1 or | means on.) Is the O or I … Continue reading →

The regulated power supply will accept an AC input and give a constant DC output. What should be achieved by the regulated power supply? A regulated power supply is used to ensure that the output remains constant even if the … Continue reading →

No, each voltage line 24v and 40v has their own set of interchangeable tools and batteries… Can you use a 40V battery in a 24V tool? No, not without intervening circuitry to step down the voltage to 20 volts. You … Continue reading →

The current in a circuit is directly proportional to the electric potential difference impressed across the circuit and inversely proportional to the resistance of the circuit. Reducing the current can be done by reducing the voltage (choice A) or by … Continue reading →

A 14-guage extension cord can handle that much current, but remember that an air conditioner, like most appliances, draws more current when it starts up. For this reason, and to prevent poor performance because of voltage drop, it’s safer to … Continue reading →

How much voltage can a USB handle? USB operates at 5V, so that means a maximum of 2.5 watts. USB 2.0 has the same power limit. But later there were add-ons to the spec for battery charging, allowing up to … Continue reading →

Most PSU’s provide two cables; one with 4-pins and one with 8-pins. Obviously you only need to use one of these cables. It is also possible that your 8-pin cable can be split into two segments to provide backwards compatibility … Continue reading →

LED strips, unfortunately, are not as simple as traditional incandescent light bulbs when it comes to installation and set up. Because they run on low voltage DC, they require a power supply device that converts 120V/240V AC (depending on your … Continue reading →

3mm LED Specifications 3mm LED Model LED Colour Electrical Characteristics YF0993-02 Bright Yellow (Frosted Lens) Voltage: 1.9v-2.1v Typical: 2.0v Current: 18mA RC0283-01 Super Bright Red Voltage: 1.6v-1.9v Typical: 1.8v Current: 18mA RF0993-02 Bright Red (Frosted Lens) Voltage: 1.9v-2.1v Typical: 2.0v … Continue reading →

First up is the Lenovo Go USB-C Laptop Power Bank, which is a portable USB-C battery with a 20,000mAh capacity. With 65W output, it can charge most laptops, as long as your laptop charges via USB Type-C. Lenovo says that … Continue reading →

The internal circuitry of the USB stick will power up as they have 5vdc supplied, but as there will be no response on the data lines, it will just sit there waiting for a never coming data connection… It won’t … Continue reading →

Using the wrong voltage may damage the power adapter, and in an extreme case could possible damage the USB device. Too low a supply voltage could result in failing to power the USB device. Too high a voltage could lead … Continue reading →

Drain the computer of electricity Disconnect the AC adapter and remove the battery (if possible). Hold down the power button for thirty seconds to drain any residual power from the laptop. Without replacing the battery, plug the AC adapter back … Continue reading →

Yes, it can be used and how the exchange would look like. If you are using a 4Ah battery and heading towards the 5Ah would mean that your application could run up to 25% longer. In contrast, if you want … Continue reading →