How much current is in a double a battery?
Answer:
Available current for most store-bought AA batteries is 600 - 800milliamps for an hour of continuous use. You can do the math to determine changes to that (but most are only capable fo managing 1Amp of current or they will burn up).
Rechargeables are different, they typically run about twice of the regular store-bought ones (1.2 Amps - 1.6 Amps) which is why they are preferred for remote control cars!
It all scales out, less current demand longer use.. etc. etc.
Hope that helps!
Depends if it is wired series or parallel
voltage of single-use AA batteries is 1.5 volts, while rechargeable batteries have a nominal voltage of 1.2V. Specialty batteries based on exotic chemistries can run as high as 1.6V under load [2]. The voltage of a AA battery is the same as a AAA battery, C cell or D cell. AA batteries, however, provide power for a longer period than AAA batteries, because their larger size allows them to store more electrolyte. C and D cells, being larger still, can be expected to last longer again.
Primary (non-rechargeable) zinc-carbon AA batteries of 400–900 milliamp-hours capacity are common. Zinc-chloride batteries of 1000 to 1500 mAh are often sold as "long life" or "heavy duty". Alkaline batteries from 1700 mAh to almost 3000 mAh cost a little more, but last proportionally longer.
Single-use lithium batteries are also available for high demand devices such as digital cameras, where their high cost is offset by longer running time between battery changes. As of 2007, the only 1.5V lithium AA is manufactured by Eveready, although AA sized batteries with different nominal voltages are available from others. These should only be used in devices rated for the higher voltage.
The capacity of rechargeable AA batteries varies with the technology used. Nickel-cadmium (NiCd or NiCad) AAs with a capacity of 650 to 800 mAh are commonly available, while 800 to 1000 mAh AA types are rarer and more expensive. Nickel metal hydride (NiMH) AAs are also available in various capacities ranging from 1400 to 2900 mAh.
The older NiCd battery chemistry can supply a higher current than typical NiMHs, so NiCds are commonly used to power model cars or other relatively high-current-draw devices. New NiMH AAs designed for high current applications are beginning to become available. These use different construction and have lower capacity (1400–1600 mAh) than the highest capacity NiMH batteries.
It really depends on what brand of battery it is. For example, an Energizer battery has a high voltage, but very short life. A Duracell battery has a lower voltage, but a longer life. A Duracell battery should have 1.2-1.5 volts.
Be sure to ask the question properly, or you'll get all sorts of incorrect answers. What I think you want to know here is the maximum current that can be supplied by a type AA battery. This depends on the variety, but we can assume that it's a single-use alkaline battery, and you wish to know the short-circuit current. And the answer is that I don't know--probably several amperes, though only for a very short time.
It all depends on the internal resistance of the cell, and this can vary widely from one type to another. Lemme look it up:
Aha: Energizer says that their AA alkaline will supply ten amperes for an instant. That's a lot of current for a little cell, so it won't sustain this for more than a second or two.
For a 1.5V battery, current can change according to the load according to P=IE
The current will flow according to the draw of the appliance the battery is hooked up to. Batteries are usually rated by amp*hours, that is, how many amps (current) can be drawn for how long a time, before the battery goes dead. This depends opn the chemistry of the battery, but if you know the chemistry (which battery NiH, alkaline, carbon zinc, lithium?) then calculate the total e-. There are 1.6*10 -19 coulombs per electron and C + a*s (coulombs = amp seconds)
How to double?
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