A long time ago (15 years) or so, all power supplies were made with so called linear power supplies, using large iron transformers operating at line frequency that took up all the space in the wall warts. These all felt … Continue reading →

How do you tell if an electric motor is wired for 110 or 220? A black and red wire, two black wires, or a black and blue wire, or red and blue wire could indicate that it is wired for … Continue reading →

As noted on most of the Samsung chargers that made in China, most probably these are assembled in China only. How do I know if my Samsung charger is original? If your charger doesn’t have a UL logo, you shouldn’t … Continue reading →

Features and benefits: Always Connected via USB Type-C: Connect the ThinkPad USB-C Dock to your laptop or tablet with a single cable and get immediate connectivity to multiple displays, a wired network, your audio device of choice, and all your … Continue reading →

Locate the USB port on your TV or use an HDMI-to-USB adapter to add a USB port to the TV. Use a cable that plugs into both the phone and TV or adapter to connect the devices. How do I … Continue reading →

Can I overcharge a battery? No, Makita chargers are designed so that they will not overcharge a Lithium-Ion battery. For example, the Makita Rapid Optimum Charger (DC18RC) communicates with Makita 18V Lithium-Ion batteries to detect its charge level. Is it … Continue reading →

If the voltage is too low, the amperage increases, which may result in the components melting down or causing the appliance to malfunction. If the voltage is too high, this will cause appliances to run ‘too fast and too high’ … Continue reading →

Homes in the United States are wired for both 110v and 220v use. Regular power outlets found throughout a home are wired to 110v while only a few outlets are wired to 220v. They both are grounded; thus, they have … Continue reading →

Yes, probably. Most devices can charge using a current higher than the spec, 500mA, for USB 2.0. The spec for USB 3.0 guarantees 900mA. However, the USB 2.0 ports on some computers are capable of providing more than the 500mA … Continue reading →

A converter is another name for a battery charger. It takes AC power and converts it to DC to charge the 12v RV batteries. What’s the difference between a power inverter and a power converter? Converters are electrical devices that … Continue reading →

Bulbs from cars are usually designed to work with about 12V, the output of a car battery or of eight standard battery cells in series. You might think that using a lower voltage would only slightly dim the light, but … Continue reading →

Nigeria travel adaptors For Nigeria there are two associated plug types, types D and G. Plug type D is the plug which has three round pins in a triangular pattern and plug type G is the plug which has three … Continue reading →