From looking at its specs it doesn’t have a waterproof rating so it’s not, I would avoid getting it wet and then especially using it whilst it’s wet. Is the MagSafe battery pack waterproof? A) The MagSafe Battery Pack is … Continue reading →

It’s possible to step 12 volts down to 6 volts by incorporating a pair of 10,000-ohm resistors into the circuit. Cut two lengths of wire, and strip each wire of 1/2 inch of insulation at each end. Attach one end … Continue reading →

Yes you can and watch an explosion take place too! Theoretically, you can charge your car battery with a 12V power supply.For a car battery to be good enough for use, it will need to read at least 13.8V. So … Continue reading →

One of the easiest ways to charge your laptop is with a power bank. A power bank is basically a portable battery for your laptop. All you’ve got to do is connect the power bank to your laptop. The best … Continue reading →

How to measure dc voltage with a digital multimeter Then insert the red probes into the V Ω jack. When finished, remove the probes in reverse order: red first, then black. Connect the test probes to the circuit: black to … Continue reading →

100 – 240V. Samsung TVs sold in India are designed to work with PAL broadcasting signals and an input voltage of AC 100 – 240V 50/60Hz. Are Samsung Smart TVs dual voltage? Samsung Multisystem TVs. These TVs are all Dual … Continue reading →

What pins turn on a power supply? To start up a stand alone PSU for either testing purposes or as a bench power supply, we need to short together pin 14 – Green (Power-ON) to one of the common black … Continue reading →

’12v’ is often ‘automotive’ devices- in which case they are very tolerant of fairly wide voltage swings (basically from 10.8v to 14.4v is commonly seen in an automobile) so they will happily take a 13v supply without issue, as long … Continue reading →

Any length or size of wires will have some resistance, and running a current through this dc resistance will cause the voltage to drop. As the length of the cable increases, so does its resistance and reactance increase in proportion. … Continue reading →

How to measure ac voltage Turn the dial to ṽ. Some digital multimeters (DMMs) also include m ṽ . First insert the black lead into the COM jack. Next insert the red lead into the VΩ jack. Connect the test … Continue reading →

The line voltage is usually 120 or 220 volts, but you can convert it to 5. The 5-volt side is connected to your device to charge it. It’s not only the same on all the chargers, but it’s also part … Continue reading →

Also called an “AC adapter” or “charger,” power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages, and the power adapter is the external part of the power supply for … Continue reading →

Yes sure can. Just connect all four (4) 12 volt rated batteries in series and across connect your 48vdc battery charger. What is the maximum voltage to charge a 12V battery? Those batteries that are used in deep discharge cycling … Continue reading →

This is the setting most of us associate with air conditioners. In this mode, your air conditioner turns on the compressor and pushes cold air into the room. When the internal temperature sensor within the AC senses that the desired … Continue reading →