TechGuru Archive

At first glance, using a DC to DC battery charger might seem redundant. Why not just charge directly from your power source? There are a couple of reasons for this, and the first is a multi-battery vehicle setup. If you’re trying to keep your backup battery charged, it can be very difficult on a modern vehicle. The reason for this is that modern “smart” alternators …

A few years ago, Apple announced that their new iPhone 7 would only support wireless earbuds. At the time, many people thought they were crazy. For the most part, wireless earbuds of the time were low quality, and only supported mono sound. This made them a non-starter for audiophiles. But Apple was banking on a new technology called True Wireless Stereo (TWS) to prove everyone …

If you’re trying to attract customers, the first step is getting their attention. And a picture, as they say, is worth a thousand words. A visual display can get people’s attention in the way a simple worded sign could never do. But why settle for an ordinary flat image whey you can catch people’s eye with something extraordinary? A 3D hologram is so eye-catching that …

Whether you’re buying a new home or reevaluating an old one, radon gas is a major concern. It poses significant health risks. Worse, because it’s odorless and tasteless, you won’t know if you’re being exposed. In order to find out your home’s radon level, you need a radon detector. We’ve reviewed several types of detectors in the past, including natural gas detectors. As a result, …

If you need a steady supply of water, a pump is a necessity. This is true whether you’re watering your plants, or whether you’re trying to take a shower. For home applications on a water line, the pump is a large commercial one, run by the water company. For homes with a well system, this is a 230 or 120-volt well pump. For an RV, …