Apple says it can last up to 28 hours for video playback, up to 25 hours for streaming video, and up to 95 hours for audio playback. All of that’s possible thanks to the 4,352 mAh battery inside the device, … Continue reading →

Even insoluble ionic compounds, such as CaCO3, are considered electrolytes because they can conduct a current in the molten (melted) state. A nonelectrolyte is a compound that does not conduct an electric current in either aqueous solution or in the … Continue reading →

When you dissolve a soluble chemical in water, you are making a solution. In a solution the chemical you add is called the solute and the liquid that it dissolves into is called the solvent. Whether a compound is soluble … Continue reading →

“Made in China” In 2007, almost 30 years after the U.S. banned lead paint-on products, China’s General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ), finally agreed to eliminate the use of lead paint on toys manufactured in China and … Continue reading →

At high levels of exposure lead attacks the brain and central nervous system, causing coma, convulsions and even death. Children who survive severe lead poisoning may be left with intellectual disability and behavioural disorders. What does lead do to a … Continue reading →

For a 12V battery, the engine will require approximately 200 amps for starting off. But the figure will increase when the battery drops voltage. So, the things to remember are that you can use a more powerful amp-pack but not … Continue reading →

Unfortunately, yes. All batteries have an expiration date mentioned on the packaging and on the cell itself. The battery may still work after that date, but with minor performance. How long do D batteries last unused? On average, primary D … Continue reading →

A potassium-ion battery or K-ion battery (abbreviated as KIB) is a type of battery and analogue to lithium-ion batteries, using potassium ions for charge transfer instead of lithium ions. Why is potassium used in batteries? Abstract. Potassium-ion batteries (KIBs) are … Continue reading →

Can I run 2 batteries in my truck? Generally speaking, the battery isolator and wiring you need to install a dual battery system in a normal vehicle is a couple hundred dollars, plus you need a mounting tray for your … Continue reading →

A battery rated for 100 amp hours will provide 5 amps for 20 hours. If we have a 12 volt battery, we multiply 100 by 12 and determine that the battery will provide 1200 watt hours. Ampere Hour is a … Continue reading →

150-200. What is the difference in battery life between Black and Decker Lithium Ion batteries and Ni-Cad batteries? Under normal household use, the useful life of an 18v Ni-Cad battery is 150-200 full charge cycles before the user will feel … Continue reading →

The date code label is on a label located on either the top of the battery or the back side of the battery. The code on the top is 12 digits with the last 4 representing the month and year. … Continue reading →

PTC (Pressure, Temperature, Current) Switch. Resets and does not permanently disable the battery when triggered. However it’s best not to trip them often as it irreversibly increases their electrical resistance by up to a factor of two and makes them … Continue reading →

Types and Examples of Electrodes Some commonly used inert electrodes include platinum, gold, graphite(carbon), and rhodium. Some reactive electrodes include zinc, copper, lead, and silver. What are the 5 types of electrodes? Science > Chemistry > Electrochemistry > Types of … Continue reading →

A higher voltage system allows a lower current to be used when charging the battery, which reduces overheating and allows better power retention in the system. This power can be used towards a longer driving range. Higher voltage systems also … Continue reading →