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Try this link ... a clear explanation with worked examples.
www.majorpower.com/inverters/battery_sizing_faq.pdf
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∙ 14y ago
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How can you use a car battery to run household appliances?
Buy an inverter from any auto parts store or a large store like Wal-Mart. This converts your 12 volt DC power to 110 volt AC power - but this sort of power usage can drain your battery fast, use with caution so that don't end up unable to start your car again.
How fast will a battery drain on an iPhone 5s?
The battery should drain slowly on an iPhone 5s. If the battery was charged correctly the first time. It should take around 10 hours to drain.
Why does the samsung behold battery drain so fast?
Your bluetooth may be on.
Can you drive a 2004 excursion on a battery alone?
yes you can but i strongly suggest not using any electronics or you will drain your battery really fast as long as you have enough power to turn over the starter then your good to go.
Will the briteness of an ipod tuch effect the battery?
indeed, brightness and leaving the wifi ON when not in use are two of the things that can drain your battery really fast
How does an inverter convert DC into AC?
One can convert DC power into AC, one must switch the supplier on and off repeatedly at a fast rate. Once one has done it, the power will be converted.
What could drain your battery really fast when car is turned off in your 1986 volgswagon golf diesel?
you could need a new battery, may not be holding a charge well.
Why does my phone die fast?
If your phone dies fast you may need to get a new battery. You should turn off all running applications that you are not using to save on battery power.
What happens if you crank 91 old with alt unepluged?
it should still start but the battery light will come on. and the battery will drain preety fast but nothing a jump star wont fix.
I have a wind turbine going into a inverter outputting to a battery. Then I have another a Solar panel going into a inverter and outputting to the same battery of the wind turbine. Is tis possible?
As far as the battery is concerned it'll be like trying to charge it by two different chargers simultaneously, which won't get it charged twice as fast. You'd probably be better off having both panel and turbine feeding into the same inverter instead. You might have to install a back-current block to keep the turbine from feeding into the panel and the other way around. Have a look at what the yachting industry are doing, they have a lot of nice stuff for these kinds of things.
What is a good way to drain your iPhone battery fast?
Run Infinity Blade on that turd, it'll molest the battery level while providing you with minutes of slashing fun, also put brightness on full and the sound on full, that'll drain it drier than Africa's water supply.
Why might a car with a new battery drain down after 2 days?
This can have many causes. A faulty battery. Some equipment constantly being on in the car will drain it. (Can be a stereosystem that is wrongly connected to power.) Could be some faulty wires from the battery to the rear (or other places). If wires are lying in some water with bad insulation, then this can be a cause. If water and faulty insulation on cables is the problem then this need to be fixed as fast as possible as it will eventually destroy the area where the current flows. It might even cause heat and possibly fire. Would not want that.
