Traditionally, most knife companies use acid etching to enhance the visual aesthetic of their differential heat treatment, or to distinguish different layers of steel in a Damascus blade. It looks good, but provides little function. What does acid etching do … Continue reading →

Battery capacity is measured in milliamps × hours (mAH). For example, if a battery has 250 mAH capacity and provides 2 mA average current to a load, in theory, the battery will last 125 hours. How do you calculate mAh? … Continue reading →

Muriatic (hydrochloric) acid is the deathly enemy of stainless steel. For pickling, use nitric/HF. For passivation, use nitric or citric. For general cleaning/degreasing use a detergent or alkaline cleaner depending on the nature and severity of the surface contamination. What … Continue reading →

Domestic fridge power consumption is typically between 100 and 250 watts. Over a full day, a fridge records between 1 to 2 kilowatt-hours (kWh) of total energy usage, or about $150 per year per fridge. These figures can be validated … Continue reading →

Now, the same team of researchers have sought to explain why the price has fallen so much. Publishing their results in Energy and Environmental Science, they say that research and development (R&D), particularly in chemistry and materials science, has been … Continue reading →

Battery capacity (kWh) The total battery capacity of an EV is measured in kilowatt-hours (kWh or kW-h). This rating tells you how much electricity can be stored in the battery pack. It’s a unit of energy just like calories and … Continue reading →

mWh is a much better unit because it allows us to compare different types of battery. If you want to compare these batteries to NiMH just divide the mWh rating by 1.2 like so: 2800/1.2 = 2333 mAh. How many … Continue reading →

You Simply have to install one end of your strip to the hippo buckle connector to connect two strips together. The buckle on the connector keeps the strips in place once installed. you can use these connectors to connect two … Continue reading →

It’s not impossible, it’s just very unlikely. The reason is that they don’t contain much energy when discharged. Yes they have flammable electrolyte and if punctured the lithium can react with the air quite exothermically. Can a dead lithium battery … Continue reading →

Lighting a bulb with just a magnet is not possible but if you have a conductor besides a magnetic field and if you can create a flux linkage to produce a dc current, you can surely light a bulb. How … Continue reading →

A typical alkaline 9 V battery is about 500 mAh capacity, so at 5 A that would come out to be about 0.1 hours (assuming that it could actually achieve that capacity at that heavy a current draw, which it … Continue reading →

Can you jump start a car with a power tool battery? You’ll need a fully charged battery from a drill or other power tool. It’s important that the battery is indeed fully charged. A half charged battery might not give … Continue reading →

Milliwatt to Watt Conversion Table Milliwatts Watts 700 mW 0.7 W 800 mW 0.8 W 900 mW 0.9 W 1,000 mW 1 W How many milliwatts are in a Volt? Milliwatt to Volt Ampere Conversion Table Milliwatt [mW] Volt Ampere … Continue reading →

What’s driving the demand for copper? Copper is a prime input material in every industry and is 100% recyclable. Its rising demand is seen most notably in the utilities (mostly renewables), electrical vehicle and battery manufacturing industries. Why is copper … Continue reading →

Jumper cables can supply power via a functional battery from another car. Keep a set in your vehicle. Connecting your car’s battery to another car’s battery with jumper cables is a common way to recharge a battery. Park the vehicles … Continue reading →