12.6 volts. The standard automotive battery in today’s vehicles is a 12-volt battery. Each battery has six cells, each with 2.1 volts at full charge. A car battery is considered fully charged at 12.6 volts or higher. When the battery’s … Continue reading →

Ionic solids are very hard and brittle. Hard due to the strong bonds. Brittle since when distorted like charged ions move closer to each other and the strong electrostatic repulsions shatter the crystal. Ionic solids cannot conduct electricity. Why ionic … Continue reading →

In a lead-acid battery, the cathode is made of lead-dioxide, and the anode is made of metallic lead. The two electrodes are separated by an electrolyte of sulfuric acid. Why is anode negative in lead acid battery? Anode and Cathode … Continue reading →

Yes, you can paint over lead paint and it’s safe. It forms a barrier against the toxins in the lead paint. However, it’s only safe and effective if the lead paint’s old finish is in good condition. Also, you can’t … Continue reading →

A flooded battery with lead-acid chemistry is the most common in the industry compared to a sealed lead-acid battery, which are sometimes referred to as a valve regulated battery, an AGM battery (Absorbed Glass Mat) or a gel battery. Are … Continue reading →

How do you do a bump start? Bump starting is using the momentum of the vehicle to spin the engine by moving the vehicle while the clutch is depressed and then letting off the clutch instantly transferring most of the … Continue reading →

Red Light Flashing Battery pack is either too hot, too cold or deeply discharged. This is NOT a fault condition. Wait for the charger to evaluate the battery condition. Once the battery pack reaches correct temperature or completes a precharge … Continue reading →

A Gardeners’ World Magazine Best Buy, the Ryobi One+ system offers a huge range of tools, batteries and chargers to choose from. The batteries charge quickly and the tools are light, easy to use and have good features. They’re also … Continue reading →

Molecular compounds dissolve in water by means of dipole-dipole attractions and hydrogen bond attractions. These attractions between the molecular compound and water don’t form ions when a molecular compound dissolves. Can molecular compounds be soluble in water? Substances that exhibit … Continue reading →

Ionic compounds exist as crystals rather than molecules. A crystal consists of many alternating positive and negative ions bonded together in a matrix. Ionic compounds are named for their positive metal ion first, followed by their negative nonmetal ion. Ionic … Continue reading →

When two voltage sources of different magnitude are connected in parallel then the charge from higher voltage source moves towards lower voltage source until and unless both voltage sources reach same potential. Can you have two voltage sources in parallel? … Continue reading →

Re: How to charge (3) 12v SLA batteries in series You need to charge each one to the same level, disconnect each one and charge each one, so you need 3 chargers or take 3x as long with one charger. … Continue reading →

The original erasers were bread. Until the 1770s, humanity’s preferred way of erasing errant graphite marks relied on bread that had been de-crusted, moistened and balled up. While these erasers were cheap and plentiful, they had a distinct disadvantage: They … Continue reading →

Lead is still widely used for car batteries, pigments, ammunition, cable sheathing, weights for lifting, weight belts for diving, lead crystal glass, radiation protection and in some solders. What are uses of lead in everyday life? Lead and lead compounds … Continue reading →

Most metals are considered to be good conductors of electrical current. Copper is just one of the more popular materials that is used for conductors. Other materials that are sometimes used as conductors are silver, gold, and aluminum. What is … Continue reading →