Who makes WalMart car batteries?

Their batteries are made by Johnson controls. Who makes batteries for many aftermarket sellers. This includes sears, AutoZone, advance auto, interstate to name a few. This can be region specific as well

What is the difference between a mobile phone battery and a watch battery?

Smartphone battery and smartwatch battery are of same type. but other watch battery of primary type which is not chargeable.

Can I replace a 2,400 mAh battery with a 3,000 mAh battery?

Most of the times, yes you can, if it physically fits and has the same voltage. Itwill last longer and take longer to recharge.Beware, given the size and type, you'll find that most batteries declared for capacity much higher than average have in fact fake capacity and won't last more than the original one.Check reviews before buying!

Why can't dry cell batteries be recharged?

It can be recharged but you need the proper charger to work with the electro chemical ox/redux of the electrodes. Alkaline batteries are designed to be stable on shelf and there's supposed to be no chemical interaction between electrodes that causes a leakage over time. This

Is it possible/economical to use a Tesla Model S and the Supercharger Network to charge a home battery system?

Theoretically yes, but I am sure that this wasn't a foreseen application. Say you live next door to a supercharger. You could drive daily to get a recharge, drive back home and use the energy in your Model S to recharge your home battery system. This would probably work, but you

How quickly do the batteries in Tesla cars degrade?

I have a mid-2015 S85D that I've driven for a total of 107,000 km (66,400 mi). I charge almost exclusively at home and at work, usually to 80%, and I basically never drive it down below 30%, or use a supercharger, except on long

What is a good battery, 4 cell or 6 cell batteries?

This should not be a question, as it carries little meaning. Battery is selected on the basis of applications and designs. Having selected a voltage, number of cells automatically gets decided.Lead acid battery of 12 V rating has 6 cells, while a 24 V battery will

How do the 4-cell laptop batteries evolve to 6-cell batteries?

Laptops typically contain batteries that are multiples of 3.6V Li-Ion cells in a series/parallel configuration.An 8 cell battery pack rated at 14.4V/3800mAh will contain cells rated at 3.6V/1900mAh, 2 in parallel to make 3800mAh, then 4 stacks in series to make 14.4V.From the example above, you can then determine the cell

How does a cellular phone battery meter work?

Volt meters monitor the amount of voltage being put out by the battery. But regarding cell phone battery meters, a lot of things can affect this reading (including the energy it takes to run the cell phone battery meter app, and the temperature of the phone). So it's important to find a cell phone battery meter app that

Are cell phone batteries interchangeable?

It is subjective. Typically for the same model, the batteries are interchangeable. But for different models, the specifications differ in terms of sizes, capacity etc and thus it is not advisable to interchange as it may be risky and battery can damage itself and even the phone.

How can we charge mobile phone batteries using leaves?

Collect lots of dry leaves and run a steam engine turning a generator.

What is the difference between a laptop battery and a mobile phone battery?

Both are made of lithium ions. But mobile battery is made of single cell while in laptop the batteryear is made of four cells, eight cells, etc

Why do dry cell batteries go dead?

Dry cells comes in both primary and Secondary form. Dry cell Battery goes dead with usage or eventually with time, if left unused. This is because of the Chemical reaction that leads to deposition on anode and resistance becomes so high that current stops.

What is the capacity of 6-cell battery?

I believe the intent was to ask about Lithium Ion batteries, so I'll answer with that assumption, from the point of view of the hobby/RC world.What the hobby/RC world calls a "6S" battery is six lithium-ion (typically Lithium Polymer, or "LiPo") cells, wired

Why does my battery percentage decrease if I drop my phone?

Dropping your phone shouldn't decrease your battery percentage.I should know, I've done it on more occasions than I can remember.However, if the drop is sufficient enough, it could cause internal damage to the battery which is actually a very dangerous occurrence.Batteries are Lithium Ion & they

What is the lifespan of a Tesla Motors battery system?

There is some concern that Tesla cars that are not plugged in for a period of time would cease to function,and so that can prematurely shorten battery life:The earliest Roadsters will take over two months to discharge if parked at a 50 percent charge without being plugged in. From that starting point,

Is cell a battery?

In battery terminology, a Cell is the base level component of what batteries are made, comprising an Anode, Electrolyte, and Cathode.FWIW, the term battery in the electrical form was taken from the military term battery, which is a group of organized ‘insert military term of choice here'. As it

Why can't mobile phones batteries get charged quickly?

Some RC LiPo batteries can be charged full in 12min (5C current). This kind of battery could be put in mobile phone. Some newer phones already use LiPo batteries.RC batteries from time to time explode while charging and burst in spectacular flames.

What is a cell in a battery?

A cell is the fundamental unit of a battery. You can have a single cell or multiple cells connected in series or parallel.

Why is Tesla not using 18650s in the Model X?

Not knowing this for sure, I would guess that the batteries for the X are coming from the Gigafactory (http://fortune.com/2015/11/03/te...) and, since Tesla owns the Gigafactory they can name the batteries whatever they damn well please. I would also venture that the batteries they are making are very similar to the

Can a phone battery still work, but leak toxic fumes, without heating up?

This can happen if the battery is slightly cut, punctured or otherwise damaged.Cell phone batteries are always LiPo (Lithium polymer) batteries. They consist of an anode and cathode foil with the actuall battery chemicals. Between them there is a seperator foil with the polymer electrolyte, and

Why we don't use li ion batteries in cars?

They're available. Sears sells some but they can be expensive.Amazon sells some pretty cheap and feedback is good. Based on my research this is a fairly new technology and I think care needs to taken before buying the cheaper ones.

How have cell phone batteries evolved over time?

The first cell phone battery was nickel cadmium. Nickel cadmium batteries don't have very high energy density, so the phones that used this were tremendously expensive and took forever to charge but only lasted for an hour. NiCd batteries have something called

What are some interesting facts about Tesla's Gigafactory?

The name Gigafactory comes from the factory's planned annual battery production capacity of 35 gigawatt-hours (GWh). This planned production capability will be realized in 2020 and will exceed total global production of lithium ion batteries in 2013.The factory is located in Sparks NV, a somewhat fitting

What are the best 12 cell batteries?

Choose a Car battery that scores well in cold cranking amps and reserve capacity testing. All batteries measure at least adequate, but there is certainly a performance variation among all of the battery options. Read more at: Finding the Best Car Battery - PowerGenixSystems

Why do fake mobile phone battery chargers explode?

It's because they are poorly designed, and often don't even have a fuse! When that is the case, the thin wires inside usually vaporize upon something going wrong (short circuit), which causes the thing to

How do lithium-ion batteries work?

This link provide very good basic information regarding lithium batteriesBasic understanding of LiPo, Li-Ion and LiFePo4 battery, its use and care

Are cells and batteries the same?

Going by the definition, A cell is a single unit which converts Chemical energy into electrical energy. When 2 or more cells are connected together (be it in series or parallel), they form a battery.

Why don't we use supercapacitors in cell phones instead of batteries?

Because batteries can hold far more energy.Supercapacitors can charge quickly, but don't hold as much.A typical cell phone battery can hold like 50 times the energy.

How quickly do the batteries in Tesla cars degrade?

I have a mid-2015 S85D that I've driven for a total of 107,000 km (66,400 mi). I charge almost exclusively at home and at work, usually to 80%, and I basically never drive it down below 30%, or use a supercharger, except on long

What happens to an unused battery over time?

Possibly, depending on the battery chemistry and the storage conditions. Time is always working against battery's performance. It may cause capacity loss and increase in internal resistance. Long story short, always prefer the newest one.

Why do fake mobile phone battery chargers explode?

It's because they are poorly designed, and often don't even have a fuse! When that is the case, the thin wires inside usually vaporize upon something going wrong (short circuit), which causes the thing to

How have cell phone batteries evolved over time?

The first cell phone battery was nickel cadmium. Nickel cadmium batteries don't have very high energy density, so the phones that used this were tremendously expensive and took forever to charge but only lasted for an hour. NiCd batteries have something called

How quickly do the batteries in Tesla cars degrade?

I have a mid-2015 S85D that I've driven for a total of 107,000 km (66,400 mi). I charge almost exclusively at home and at work, usually to 80%, and I basically never drive it down below 30%, or use a supercharger, except on long

How do lithium-ion batteries work?

Lithium-Ion battery works in similar to normal batteries. Principle is the same as exchange ions and flow of electrons. Below mentioned are the few properties:WorkingThere is an Anode and Cathode in a Lithium Ion battery. At present Graphite( Carbon Material) is used as Anode. The reason behind the use of Graphite can be explained due to its

How are the Tesla Motors batteries configured?

Battery management is their core IP and Tesla Motors won't disclose much about it. Current model (Roadster) uses 215KW motor and 6,831 small cells of Lithiun Ion battery called 18650 type. Typical performance of 18650 cell is somewhere near 3.7V / 2,400 - 2800 mAh. Tesla Motors is not manufacturing 18650 cell at

How does cell phone battery work?

A battery uses a chemical reaction to create or store electricity by striping electrons from a molecule and depositing them on one conductive metal contact, while leaving the other conductive metal contact with an absence of these molecules and the striped electrons. When you use a battery you cause the electrons to travel along and then find its hole

How to make my own cell phone battery, that will last longer than other phones

You have two choices, make it more energy dense or increase the size.  However given you don't seem to know a lot about batteries much less the batteries in cell phones, I will recommend you pick a different project.  Messing around with lithium batteries is a great way to cause an explosion or a fire.  You will lack the

What happens to an unused battery over time?

Possibly, depending on the battery chemistry and the storage conditions. Time is always working against battery's performance. It may cause capacity loss and increase in internal resistance. Long story short, always prefer the newest one.

How do lithium-ion batteries work?

This link provide very good basic information regarding lithium batteriesBasic understanding of LiPo, Li-Ion and LiFePo4 battery, its use and care

Is it better for a battery to have more cells or fewer large cells?

Whoever answers this question should be an Electrical Engineer with a degree as well as having years of experience in the battery industry. Everyone else including myself will be giving an opinion which is not what the OP wants or needs.I think every battery application requires design tradeoffs as

What is a good battery, 4 cell or 6 cell batteries?

This should not be a question, as it carries little meaning. Battery is selected on the basis of applications and designs. Having selected a voltage, number of cells automatically gets decided.Lead acid battery of 12 V rating has 6 cells, while a 24 V battery will

Are cells and batteries the same?

Going by the definition, A cell is a single unit which converts Chemical energy into electrical energy. When 2 or more cells are connected together (be it in series or parallel), they form a battery.

What are some interesting facts about Tesla's Gigafactory?

The name Gigafactory comes from the factory's planned annual battery production capacity of 35 gigawatt-hours (GWh). This planned production capability will be realized in 2020 and will exceed total global production of lithium ion batteries in 2013.The factory is located in Sparks NV, a somewhat fitting

How do lithium-ion batteries work?

This link provide very good basic information regarding lithium batteriesBasic understanding of LiPo, Li-Ion and LiFePo4 battery, its use and care