2006-09-13 06:49:28 · 9 answers · asked by ? 4 in Science & Mathematics ➔ Engineering
Assume it is an alkaline battery.
2006-09-13 06:59:59 · update #1
A typical AA battery is rated 2 amp/hours discharging from 1.5V to 0.9V. The discharge curve is relatively linear in that range, so the average voltage is 1.2V. The power then, is 1.2V times 2 amp/hour = 2.4 watt/hours.
Not all AA batteries are created equal. The actual power will vary around 2.4W/H depending on brand and discharge rate. You get a little more energy if you discharge the battery to 0V, but the voltage drops off rapidly after 0.9V.
2006-09-13 07:16:28 · answer #1 · answered by semdot 4 · 7⤊ 0⤋
Aa Battery Amp Hours
2016-11-14 20:00:00 · answer #2 · answered by Anonymous · 0⤊ 1⤋
This Site Might Help You.
RE:
How much energy can a AA battery provide in Watt*hours?
2015-08-20 16:35:43 · answer #3 · answered by Gran 1 · 0⤊ 0⤋
The battery should have an amp-hour rating. Multiply the amp-hour rating by its voltage and that should give you an idea of how much energy in Watt-hours is in the battery.
Check out the linked Wikipedia page. From that you can deduce that the typical alkaline AA battery has something like 2.7 to 3.9 Watt-hours of energy.
edit: Oops... I forgot that the batteries voltage does drop to a lower point as the available energy is dissipated. Thus my results would be a bit high and semdot's answer would be more accurate.
2006-09-13 07:01:06 · answer #4 · answered by Ubi 5 · 2⤊ 0⤋
Buy Duracell Coppertop AAA Alkaline Batteries Cheap
http://aaabatteries.us/
2013-11-24 07:39:06 · answer #5 · answered by Thanapol 1 · 0⤊ 1⤋
An AA battery (IPA pronunciation: [eɪ eɪ] or [ˈdʌbl̩ eɪ]) is a dry cell-type battery commonly used in portable electronic devices. Electrical output of alkaline batteries in this size is 1.5 volts, 1800 to 2600 mA·h, while rechargeable batteries commonly output 1.25 V. The nominal voltage output of an AA battery is the same as that of an AAA battery, C battery or D battery, however AA batteries provide power for a longer period than AAA batteries (hence their larger size), and for less time than C or D batteries, which in turn are larger than AA cells. An AA cell measures up to 51 mm long, 15 mm in diameter, and weighs approximately 23 g (1.97 x 0.56 inches and 0.81 ounces).
The capacity of rechargeable AA batteries varies with the technology used. Nickel-cadmium (NiCad) AAs with a capacity of 650 to 800 mA·h are commonly available, while 800 to 1000 mA·h are rarer and more expensive. Nickel metal hydride (NiMH) AAs are available in various capacities ranging from 1400 to 2700 mA·h.
NiCad AAs are commonly used by people powering model cars or other (relatively) high-current-draw devices, where the older NiCad technology performs better than NiMH. New NiMH AAs designed for high current applications are beginning to become available. These use different construction and have lower capacity (1400-1600 mA·h) than the highest capacity NiMH cells.
Recently, AA-sized batteries have been introduced in Li-ion format [1], however, these batteries do not supply voltage in the 1.5 V range and are not true AAs.
Watts is P (power)= I (current) x E (voltage)
2006-09-13 07:28:57 · answer #6 · answered by Anonymous · 0⤊ 4⤋
my wirelss keyboard eats up aa duracl for 1 moth versus rite aid battr for 10 days.
2006-09-13 07:10:00 · answer #7 · answered by Anonymous · 0⤊ 1⤋
actually it depends on the load you are using.......the formula for calculating Watts is P (power)= I (current) x E (voltage)
2006-09-13 07:11:41 · answer #8 · answered by Scotty 6 · 0⤊ 0⤋
What's its composition, alkaline, carbon zinc, lithium ion, etc/
2006-09-13 06:52:15 · answer #9 · answered by Anonymous · 0⤊ 1⤋
Usually about 1.5, depends on the brand.
2006-09-13 06:50:51 · answer #10 · answered by Wocka wocka 6 · 0⤊ 3⤋