Remember to only charge re chargeable vented or flooded lead acid type batteries. Never recharge dry cell batteries, non-rechargeable or defective batteries. These batteries may burst and cause personal injury and property damage. Can you charge a jump start battery? … Continue reading →

A fully charged cell phone plugged into the wall is consuming about 2.24 watts, or 60 percent of the power it consumed while charging. Even worse is a charged laptop that’s still plugged in, which consumes 29.48 watts, 66 percent … Continue reading →

What Uses the Most Energy in Your Home? Water heater: 14% of energy use. Washer and dryer: 13% of energy use. Lighting: 12% of energy use. Refrigerator: 4% of energy use. Electric oven: 3-4% of energy use. TV, DVD, cable … Continue reading →

AC will display as zero voltage on a DC setting, regardless of the polarity. Reversing the leads and still reading zero will distinguish this from DC with reversed polarity if the meter displays zero for reversed polarity DC. Measuring DC … Continue reading →

Michael S. Morse, a professor of electrical engineering at the University of San Diego, explains that while 10,000 volts can be life threatening in certain circumstances, it’s possible for something to have 10,000 volts behind it and be relatively harmless. … Continue reading →

How can you tell if a cable is AC or DC? The AC cables will be single insulated while the DC cables are double insulated. The copper wire in the DC wire is tinned copper wire which is to protect … Continue reading →

If a wire gauge is “too big” then it is a lot more expensive and is harder to bend, as well as more difficult to attach with wire nuts or to switches. Other than that, not much of anything. Is … Continue reading →

“If it overheats it does have the potential to create a fire when it comes into contact with the cloth,” Martin said. Martin suggests buying a charger compatible to your phone, or at the very least one that is U.L. … Continue reading →

The most common spec you’ll see on a charger is the watts (W)—essentially how much energy the charger can push toward your phone at once. Tablets and laptops will typically have chargers with a higher W value, as they have … Continue reading →

Universal chargers are commonly available as replacements for many of the leading laptop brands. Some even span multiple brands and are packaged with multiple sets of ‘tips’ or ‘pins’, the part of the charger that connects directly to your laptop. … Continue reading →

Yes if you use something call “a booster” which is basically a car battery in a fancy plastic enclosure. The easiest way is jumper cables and someone else car. But you could use your 12v power supply to charge the … Continue reading →

One of the most effective ways to cool your PC is to clean the internal fans. There’s a fan on top the CPU, one inside the power supply, and usually one or more on the front and/or back of the … Continue reading →

China uses generally 220V, 50HZ, AC (Hong Kong is 220V; Taiwan is 110V). If you are from the countries where the standard of 110-120 volts at a frequency of 60 Hz is available, you need to have converters for your … Continue reading →

By increasing the size of the wire to gauge #2 (33.6 mm2) the maximum length is limited to approximately 32 m. How far can you run 12v wire? 12V DC Power Drop / Max Cable Distance Chart 24 AWG 12 … Continue reading →

They made batteries to power motors that use chemical processes to produce electricity. Most of the components in a vehicle will run using DC currents. Therefore, the car’s battery will use a DC current to power these electronic components. Why … Continue reading →