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Batteries

Batteries are sources of chemical energy that are used in circuits to provide electrical energy for a wide range of useful devices. Any questions and answers regarding batteries or other power supplies would be welcome here.

4,818 Questions

How much acid is in a battery?

The acid in a battery is sulphuric acid. It is highly corrosive and hazardous to touch. Acid spills must be carefully cleaned with products which neutralize the acid. Personal protective wear, at a minimum gloves and face protection, should be worn when cleaning acid spills.

What are the three main components of a battery?

Batteries are made up of zinc, zinc chloride and ammonium chloride. There is also a basic element called an electrochemical cell in the batter also.
Batteries have three sections, an anode (- ), a cathode (+), and the electrolyte. The cathode and anode are connected to an electrical circuit. The chemical reactions in the battery cause a development of electrons at the anode.

What battery for marine star bulova?

the size is 364. it should say SR621SW, it is 1.55v

Why did alessandro invent the battery?

Starting with the Daniell cell in 1836, batteries were adopted by industry for use in stationary devices, particularly in telegraph networks where they were the only practical source of electricity.

Which brand of battery will last long?

The type of battery recommended for cellphone usage is something like a lithium ion battery. If you get a nickel based battery, it can develop a memory effect, the lithium batteries under normal usage do not develop this effect. Either way, the best way to make sure that your battery lasts the longest time possible is to not put it on the charger until you are down to around 1 bar of battery strength left, even with nickel based batteries this will enhance the life and give you a good battery with your cell phone. Most phones nowadays comes with lithium batteries. Comment: There is no type of brand (i.e. Motorola, LG, etc..) that lasts longer than any other. Only how much of a charge the battery is capable of 900, 1050, etc.. Answer Li-Lithium is OK AdditionalCellphone life is measured in several ways, such as: stand-by time and talk time. Each phone has a different projected battery time before it has to recharge. Vendors usually provide these measurements with their phone. There are also articles that review battery life for each phone.

Is Battery acid the strongest acid?

No, battery acid (sulfuric acid) is not the strongest acid. The Strongest acid is fluoroantimonic acid.

Bear in mind the acid in a battery is in a diluted state-not concentrated. Although it could blind you, if it gets on the skin it will create a burning sensation before it does any permanent damage and you can wash it off or neutralize.

What happens if you put two batteries in a flashlight so that the negative end of one battery touches the negative end of the other?

It depends on the flashlight.

  • Old style lights with incandescent bulbs will light regardless of the direction the current flows. The problem is that misinstalled batteries may not contact the connectors properly and no current flows.
  • For modern LED lights the current must flow in the proper direction due to the nature of diodes so the batteries must be installed correctly. This applies for many diode and transistor using systems such as wireless keyboards and mice.

It would.of course, be more interesting if backward installed batteries caused the flashlight to suck in light and cast a beam of darkness - but the real world does not work in this way


How can you tell pda battery needs replacing?

Your battery will be on for a short time (i'm talking about, like, 70% less charge then it used to).

What is the average life of auto batteries?

Depending on how you use the battery, and the weather conditions of where you live will effect the life of an auto battery. On average a battery can last from 3-5 years.

How does duracell differ from eveready battery brand?

Usually, not by much.

There may be small changes in che chemical "recipes" for what's used in the cells, as well as some manufacturing differences in how the casings are made, filled, and sealed.

How much does a AAA battery cost?

Depends where you purchase them. You can find some cheap ones for a dollar at a 99 cent store.

How long does it take to charge a traxxas slash battery?

The battery life all depends on your driving. For example the Traxxas Rustler VXL's battery life will get about 20 minutes (Still depending on how hard it is driven). But don't think that 20mins is nothing, its actually pretty good for an electric r/c truck.

What is the voltage output of 4 AA batteries?

An AA battery is nominally 1.5 volts, so if the four batteries are wired in series (+ of one to - of the next), the voltage is nominally 6 volts.

However, the batteries could also be wired in parallel, with all four positive terminals connected together and all four negative terminals connected together. Then the voltage would be 1.5 volts.

To make it even more complicated, you could also wire two pairs, with each battery wired in series to its twin, but with the two pairs wired in parallel to each other. Then the voltage is 3.0 volts.

Is a battery input or output?

Neither, it is a power source providing the energy to make the device work.

Why is acid in batteries?

Helps the battery to hold charge for a long period of time by charging the cells of the battery. So always check if you need to top off the battery acid fluid in your battery if its not servicable battery then you cant really check it you will need a special tool that you hook up to it that will read for you if battery still has good or bad charge.

What are the advantages of a lemon battery?

The lemon battery has no real world advantages other than the materials needed to make one are cheap, readily available, and nontoxic, making it quite suitable for a school science demonstration.

What Duracell rechargeable battery lasts the longest?

In my personal experience, they have always lasted longer that Energizer and other brands I have tried. They use Duracell batteries in the transplant of artificial organs simply because they are known for their lasting duration.

How many hours does an energizer battery can be in used?

It jus depends on a few factors like the capacity and how many amps the light draws n this n that. But I have found Energizer to be the best batteries for flashlights!!! With a single AA Energizer battery lasting anywhere from 2-5 hours with the flashlight being continuously on till it turned off. So they may even last a lil bit longer if not in constant use like that!!!

How do you charge two batteries same time?

Use a special charger, such as an RV or boat charger, that has multiple outputs (best). Connect the two batteries in series, and use a 24V charger (ok, if the two batts are exactly the same). Connect the two batteries in parallel and use a standard 12V charger ( worst choice, one battery tends to hog the current, and they receive unequal charges). See the links for a dual-output charger I Googled.

What does a 9 volt battery do?

It provides a source of power to the circuit, in the form of direct current electricity, at a potential difference of 9 volts.

How long will a 12volt 7ah battery last with a 24 watt bulb?

-- The power being used is (voltage) x (current).

-- In order to get 100 watts out of a 12-volt battery, the battery has to

produce 81/3 Amps of current, because (12) x (81/3) = 100.

-- The battery holds enough juice so that (current) x (length of time) = 7 Amp-hour.

-- If you pull 81/3 Amps from that battery, the math says that it'll be empty

in 0.84 hour (50 minutes), because (81/3 Amps) x (0.84 hour) = 7 Amp-hour.

-- The truth is that if you discharge a battery that fast (all of its capacity in

less than 1 hour), it won't match the math. It'll begin to sag, groan, and gasp

in less time than you'd expect.

-- 0.84 hour is about 50 minutes. you should not expect 100 watts out of

this battery for much more than 35 or 40 minutes.

Does higher voltage mean longer battery life?

Yes

The larger the battery, the more voltage the battery has.

What happens to a battery once it goes flat?

There are many different kinds of batteries; some are rechargeable, some are not. Many batteries contain toxic metals (lead, cadmium, and others) so when they are finally thrown away, they should be processed at a toxic waste disposal facility - although of course, they are often just thrown into the regular garbage (since this is easier) and wind up in land-fill sites.