Provide power to an outlet with 9v batteries?

Question

Would it be possible to supply enough power with about 13 9v batteries to an outlet to run any kind of electronic.A standard outlet provieds 120v of power. So with 13 (forgot the math for the voltage but it's 9*12) 9v's you should give enought power to power up the outlet right? Just an experiment

Answer 1

The problem is that those batteries have very little chemical energy in them so that they will only power up a small lamp (size of a nightlight).. A better approach is a 12 volt storage battery with an inverter to make 120 volts. You can buy a UPS (uninterruptible power supply) that will do hundreds of watts for a half hour for under $50 in stores like CompUSA or Staples. By spending lots more money you can get one that will do thousands of watts for a half hour. And since they are charged from the power line when power comes back you don't have to replace their batteries.

Answer 2

In the case where the battery voltage might be higher than the panel voltage, Rudydoo is right in that you must put a blocking diode in series with the panel, or, as you suspected, the battery will discharge through the panel. That said, for the small kind of panel that you are likely to encounter in a hobby project, it should be fine to connect the panel straight to the battery. Won't harm the panel, probably won't harm the battery. Here are a couple things to watch out for: If you have a 12V battery (lead acid, like a car battery), and the voltage has dropped to 6 volts, that battery is basically ruined forever. If it's a NiMH battery, then the battery is basically dead at 6 volts. It would be rather pointless to try to charge such a battery from an 8-volt panel, because most of the capacity of the battery would come when the voltage got close to 12 volts. A 12V lead-acid battery really needs about 15 volts to charge. A NiCd battery at 12 volts can charge directly from a 13 volt panel at low current. A NiMH battery does not charge well at low currents, so would only work poorly with a 13 volt panel. A Lithium battery is extremely sensitive to overcharging, and really should not be connected straight to a solar panel.

Answer 3

No. 9V batteries provide DC, not AC. Also, though you can "stack" the 9V batteries until you have a total of about 120V, the current the batteries can produce is negligible in comparison to even the smallest loads. Most 9V batteries are rated 200-250mA. Therefore, with 13 of them stacked together to produce 117V, you would get only 29.25 watts (assuming 250mA). Assuming you had a load that would run on DC AND it was less than 30W, you could conceivably use 9V batteries to provide the power, but it would be fantastically inefficient. For reference, most household outlets are rated 15A for at least 125V (1875 Watts), so you the batteries would be producing only about 1.6% of the normal wattage available, and as DC instead of AC.

Answer 4

No. A nine volt battery is designed for a working load of about fifty milliamperes, which is only six watts at 120 volts. Not only would the power be limited, it would be direct current (most 120 volt devices require alternating current -- DC will kill them), and the batteries would cost a fortune. You need to run NM cable from some other outlet (a light switch box may be usable, depending on the wiring), or from the breaker box.

Answer 5

For virtually all electronics the 60hz 110VAC power in a wall outlet in America is dropped to a, usually 5 or 6 vdc, smaller dc voltage. You cannot easily change dc to ac but it is simple to change ac to dc. 120v is not a measure of power. Power is measured in watts which equals voltage times current (amperes). The ultimate answer to your question is YES but I cannot imagine a situation where you would want to do it. There are lots of 12vdc to 110vac converters out there for use in cars and boats and the wall wart that comes with any of your electronic toys is an ac to dc converter.

Answer 6

Learn the difference between direct and alternating current. You can get an inverter to turn DC into AC, but it would need something bigger (say a car battery) to run any significant load..

Answer 7

nope,won't work.batteries are direct current,outlets alternating current