The first thing you’ll want to look at is the adapter’s output voltage. This is extremely important, since a device will only work if it’s receiving the correct voltage. Most laptop chargers are rated for 3, 5, 6, 9, 12, … Continue reading →

transformer. A transformer is an electrical device that changes the voltage of an alternating current (AC) supply, such as the mains electrical supply . What type of device can be used to change the voltage? A transformer is a device … Continue reading →

Lead acid batteries are the leading component for the electric car industry today. The reason is clear: their ability to provide the high surge currents needed for an automobile’s starter motor makes them a reliable power source at an affordable … Continue reading →

Power adapters can last you a lifetime if you are careful when wrapping the cord. In almost all cases the power cord is damaged and not the power unit itself. How long does an adapter last? Usually, an AC adapter … Continue reading →

USB cables come with one of five different basic types of USB connector: A, B, mini B, micro B, and C. The micro connector comes standard on most non-Apple mobile phones and many other portables, though USB-C connectors are slowly … Continue reading →

The compressor is either on or off, so only one pitch is used. If you hear the sound of a compressor making changes as you lower the thermostat, it’s an inverter unit. Setting the fan to low will make it … Continue reading →

You cannot supply 9 V or 18 V to 12 V motor if it has to work properly. 2 batteries in series make it 18 V, which cannot be used for 12 V motor, which can at most tolerate 14 … Continue reading →

Looking at the receptacle itself, the hot side is the side of the outlet the thinner prong plugs into. The thin prong is the hot wire, and the thick prong is the neutral wire. Which side of a electrical outlet … Continue reading →

A 6V battery is a lead-acid type cell. It is also known as a lantern battery. It usually uses four large. 6V batteries are used in dog training devices, medical instruments, film and digital cameras, and many other devices. Most … Continue reading →

If a device rated for 5v is connected to a 12v supply, some of the components may get burnt or damaged due to over current. If the applied voltage to equipment is more than its maximum rated voltage, the equipment … Continue reading →

Cooling pads are just bad for laptop components! The pad will just blow a lot of air (and dust) inside your laptop, causing some sensors inside thinking they are cool and can carry on stressing the computer. If a laptop … Continue reading →

Of course it’s not alright to use a 9V adapter for a 5V device. Why would we provide the voltages ratings if it didn’t matter? Only if the 9 volts is regulated by a 5 volt regulator like the 7805. … Continue reading →

It is recommended that you regas your car’s air conditioning system every one to two years. How long does Freon last in a car? So, how long does an AC recharge last? Your air conditioning is not something that runs … Continue reading →

These two new Makita 18v tools are powered by the innovative Brushless motor which generates less friction and heat, delivering maximum machine performance and longevity. Are Makita tools brushless? The expansive breadth-of-line of the Makita LXT System means an 18-volt … Continue reading →

Excellent PSU for the price. Very reliable. Has been put through alot of stress and is still performing with no issues. Would recommend to any one looking for a great psu at this price range. Which brand PSU is best? … Continue reading →