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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

Extend your iPod 2 Battery Life?

Whether you have just started using your iPod or are looking to make the battery last longer than normal, consider the following tips: Charge the battery only when it runs out. Charging it too much can actually result in a shorter battery life. Keep your iPod at room temperature. Leaving your iPod out in the cold can damage it. Turn off your iPod when unattended, as leaving it on can quickly drain the battery.

Why does your car battery self discharge?

Your car battery can self-discharge on the basis of chemical reaction, or due to temperature changes (when it gets colder, it has less amperage available). It can also be caused by parasitic draw due to a improper connection or a device left on. Typically if the electrical system has been evaluated and there is no parasitic power-off draw, then the battery's chemical composition may have been compromised or a cell may have been crossed. This means your battery is bad and typically needs to be replaced.

How Can you Charge Cell Phone Battery without Electricity?

There are cell phone chargers that are available that run on solar and wind power, which generates electricity.

Are there different types of D battery?

Generally speaking yes, depending on how you define things. There are consumer D batteries (they look like all normal batteries) then there are "Tabbed" batteries, these have tabs on the end to be soldered into equipment (normally rechargeable). Batteries are also made up of different chemical types, and have different amp hour ratings; A D-type alkaline cell is normally 12,000 mAh, while zinc-carbon, also described as heavy duty or super heavy duty types, have about half that.

What does the line below G in galvanometer indicate?

The Underline below symbol G represent about flow of current,if the line is straight it shows direct current,and if it is zig-zag then it is alternate current.

Why does your 1998 Malibu not recharge the battery when using the AC around town I have replaced the battery battery cables and altinater?

because it automatically detects that you are stupid and prevents charging. possibly an alternator instead of altinater would also help.

Not Nice; Rocky_B - See my entry here for more things you might want to check: http://wiki.answers.com/Q/What_could_be_wrong_if_the_battery_light_stays_on_and_the_battery_still_runs_down_on_a_1996_windstar_after_installing_a_new_battery_and_alternator

What are the advantages of a dry cell over a wet cell?

  • Wet cell: A since the liquid covers all internal parts, or wet cell battery has a liquid electrolyte. Other names are flooded cell vented cell since gases produced during operation can escape to the air. Wet cells were a precursor to dry cells and are commonly used as a learning tool for electrochemical. It is often built with common laboratory supplies, like beakers, for demonstrations of how electrochemical cells work. A particular type of wet cell known as a concentration cell is important in understanding corrosion. Wet cells may be primary cells (non-rechargeable) or secondary cells (rechargeable). Originally all practical primary batteries such as the Daniell cell were built as open-topped glass jar wet cells. Other primary wet cells are the Leclanche cell, Grove cell, Bunsen cell, Chronic acid cell, Clark cell and Weston cell. The Leclanche cell chemistry was adapted to the first dry cells. Wet cells are still used in and in industry for standby power for automobile batteries switchgear, telecommunication or large uninterpretable power supplies, but in many places batteries with gel cells have been used instead. These applications commonly use lead-acid or nickel-cadmium cells.
  • Dry cell: A dry cell has the electrolyte immobilized as a paste, with only enough moisture in the paste to allow current to flow. As opposed to a wet cell, the battery can be operated in any random position, and will not spill its electrolyte if inverted. While a dry cell's electrolyte is not truly completely free of moisture and must contain some moisture to function, it has the advantage of containing no sloshing liquid that might leak or drip out when inverted or handled roughly, making it highly suitable for small portable electric devices. By comparison, the first wet cells were typically fragile glass containers with lead rods hanging from the open top, and needed careful handling to avoid spillage. An inverted wet cell would leak, while a dry cell would not. Lead-acid batteries would not achieve the safety and portability of the dry cell, until the development of the gel battery. A common dry cell battery is the zinc-carbon battery, using a cell sometimes called the dry Leclanché cell, with a nominal voltage of 1.5 volts, the same nominal voltage as the alkaline battery (since both use the same zinc-manganese dioxide The makeup of a standard dry cell is a zinc anode (negative pole), usually in the form of a cylindrical pot, with a carbon cathode (positive pole) in the form of a central rod. The electrolyte is ammonium chloride in the form of a paste next to the zinc anode. The remaining space between the electrolyte and carbon cathode is taken up by a second paste consisting of ammonium chloride and manganese dioxide, the latter acting as a depolarize. In some more modern types of so called 'high power' batteries, the ammonium chloride has been replaced by zinc chloride.

How do you select battery with long life?

you can ask for recommendations from friends and neighbors or use batteries with popular brands.

What are the parts of an ignition system?

Ingnition switch, relays/fuses, wires. Depending on year ecm(engine control module) 1-12 coil packs, or distributor and spark plug wires and spark plugs. Can have knock sensors, which adjust timing to compensate of fuel/atmospheric conditions.

How are the 12-volt batteries connected to provide the required 24-volt electrical power for the FRS generator?

If you put two 12 V batteries in series you get 24 V. Connect the positive of battery 1 to the negative of battery 2. Then you have 24 V between negative of battery 1 and positive of battery 2.

How many different types of batteries are there like i know one of them is a lead battery and of course the electric battery but can you tell me the others?

there are many types of batteries but an estamation there is adout 10 types of batteries not much i no. there are many types of batteries but an estamation there is adout 10 types of batteries not much i know.

What is the purpose of manganese dioxide in a Duracell battery?

Manganese dioxide is used in all brands of dry cell batteries (both the old acidic electrolyte formula and the modern alkaline electrolyte formula) as a catalyst to speed the conversion of microscopic hydrogen gas bubbles that form on the zinc electrode during use back into water. If allowed to accumulate these hydrogen bubbles raise the internal resistance and cause a battery to appear to go dead long before it has died.

So called "rechargeable alkaline batteries" are not actually rechargeable, their "charger" just applies a small reverse current which further speeds conversion of the microscopic hydrogen gas bubbles back into water. The correct term for this process is rejuvenation, as all it does is reduce internal resistance of the battery.

Which charges faster 1 large battery or 2 smaller batteries that can store the same energy?

Difficult one. One concern when charging is that batteries get warm by the process. Two small batteries have better ability to shed that heat than one big battery, so they can be charged "harder", and should be done faster. OTOH if it's a slow charger to avoid heat build-up, then charging two different batteries will take longer.(assuming you have to charge them in sequence)

I know that the older iPods can be charged up to 1000 times. Can the iPod Touch 16 GB be charged the same amount of times?

All devices powered by standard lithium-ion batteries, such as the iPod Touch and similar devices, can be recharged up to 300 times before the battery loses noticeable capacity. Depending upon use and storage, after 1000 charges these lithium ion batteries will likely have lost more than half of their original capacity.

What does the red blinking light mean on a enercell 23-788 15 Minute Battery Charger?

From the manual, about the charging indicators: "If they flash quickly the batteries may be bad." This would probably mean that the batteries are damaged somehow and cannot be charged.