The reserves of some rare earth minerals used in electronics, medical equipment and renewable energy could run out in less than 100 years. Rare earth minerals are naturally occurring resources, which cannot be recreated or replaced. Some are present in … Continue reading →

about 0.05C.. While NiCd batteries may be trickle charged at a rate of around 0.1C, this is considered too high for NiMH batteries and it is generally accepted that for most NiMH batteries trickle charging should be accomplished at a … Continue reading →

While we’ve seen nicad batteries that last past 18 months, they usually require many charge/discharge cycles to get it to perform at 80% capacity. How long should batteries last? Chemistry Shelf Life Cycle Life Nickel Cadmium 1.5-3 Years 1,000 + … Continue reading →

A rechargeable battery can be used efficiently for 5 to 7 years if it is well maintained and frequently used. However, a rechargeable battery that is kept and used can last only two to three years with bad performance and … Continue reading →

As Ampere suggested, a magnetic field is produced whenever an electrical charge is in motion. The spinning and orbiting of the nucleus of an atom produces a magnetic field as does electrical current flowing through a wire. The direction of … Continue reading →

Out of 7 analysts, 0 (0%) are recommending VLDR as a Strong Buy, 1 (14.29%) are recommending VLDR as a Buy, 4 (57.14%) are recommending VLDR as a Hold, 2 (28.57%) are recommending VLDR as a Sell, and 0 (0%) … Continue reading →

Packs with LiPo-Balancers fitted can safely be trickle charged at up to 200mAh. Some of my customers do this to top off their packs because their regular charger cuts off early (at 4.15V / cell), and the balancers are much … Continue reading →

On average, your battery will serve you well for about three to five years when you have a conventional gas-powered model. Hybrid models (like the Toyota Prius) have batteries that can last for up to eight years. How long do … Continue reading →

My lipos usually charge in 35 to 45 minutes depending what I take out of them. I fly light 3d for 6 minutes and not a second more. All my lipos are 2200 mah 25c 3s. Mine takes around an … Continue reading →

In the three-compartmental modeling, three compartments describe the fate of a drug once administered: the central compartment, which represents the plasma; the highly perfused compartment, which represents the organs and tissues highly perfused by the blood; and the scarcely perfused … Continue reading →

The symptoms that usually accompany a leaking car battery include: A bubbly liquid is seeping through a vent cap. The battery casing is bloated or warped. There is a rotten egg smell emanating from the sulfuric battery solution. There is … Continue reading →

An Overcharged Battery Battery overcharge is one of the more common reasons for battery leakage. When this happens, the electrolyte in the battery boils, causing acidic steam to flow out of the vent caps. The steam pools on the surface … Continue reading →

8) The battery can explode if the vent holes of vent plugs are clogged due to battery being kept or used in a dusty/dirty environment. The batteries having such clogged vent holes of vent plugs shall not allow gases to … Continue reading →

Self-discharge is a phenomenon in batteries in which internal chemical reactions reduce the stored charge of the battery without any connection between the electrodes or any external circuit. Self-discharge decreases the shelf life of batteries and causes them to have … Continue reading →

The residence time of a fluid parcel is the total time that the parcel has spent inside a control volume (e.g.: a chemical reactor, a lake, a human body). What is residence time example? By definition, the residence time is … Continue reading →