how long will a car battery run a box fan
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5 in. Battery Operated Portable Fan Bought this fan for my garage fridge that I use to dry age beef and air Dry Cappicolas. Uses 2 D batteries. Put 2 new batteries in and have been running this fan for approximately 10 to 12 hours per day not counting today its been 7 days. Fan Box states up to 40 hours operation on 2 D's.
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- Allow at least five minutes to pass after starting the engine of the car with the charged battery. This will allow the dead battery to build up a charge of its own, although it would take longer to fully charge the battery.
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- Idling a car for 5-10 minutes will not recharge a battery. It MIGHT replace a bit of the charge lost to starting it in the first place, but even that is iffy. The alternator in your car will need to hit, roughly, 2000 engine rpm to push a charge back to the battery. Keep the top of the battery clean, not just the posts.
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Average Life of A Car Battery Theoretically, a car battery can live past 5 years if you don’t subject it to extreme temperatures or to powering car gadgets, you charge it fully, etc. What makes your car battery live less . Temperatures . A car battery will end its life sooner if the area you live in has warm weather throughout the year.
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How Many Cold Cranking Amps Should a Car Battery Have? Quick Answer. Charging a 12-volt battery with 450 cold cranking amperes and a 5-ampere charge rate takes about nine hours. The length of time required to charge a battery varies with the voltage, the charge rate and the CCA capacity of the battery. Keep Learning.
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- Video Transcript: Here we have a relatively brand new car battery, less than 1 year old. It should still be capable of starting a car but it was unfortunately left in a discharged state for too long. When we test the dead car battery with a multimeter, we get a reading of 6.8 Volts.
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- A 9v alkaline battery has six cells each producing 1.5 volts. There are some obvious differences, like that a car batter … y can put out hundreds of amps and a 9v alkaline can only put out hundreds of milliamps, a 9v battery weighs 45 grams versus 45 pounds for a car battery, and so on. 2 people found this useful.
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How can I charge a car battery at home? · just now. Report Abuse. An idle won't do you much good at all, the alternator must have higher RPM's to charge the battery. Driving the car for 20-30 minutes or so, if the alternator is putting out the right volts, will be sufficient to fully charge the battery. Good luck. Don,The · 8 years ago.
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Using a car battery charger How to charge a battery. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on.
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Using a car battery charger A basic charger usually charges at around 2 amps-and so needs 24 hours to deliver the 48 amps needed to fully charge a flat, 48 amp hour battery. But there is a wide range of chargers with different charge rates on the market-from 2 to 10 amps. The higher the charge output, the faster a flat battery is recharged.t uses mains current to replace the battery's lost. through positive and negative leads that clip to the corresponding battery posts. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on.
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Using a car battery charger It uses mains current to replace the battery's lost. through positive and negative leads that clip to the corresponding battery posts. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on. basic charger usually charges at around 2 amps-and so needs 24 hours to deliver the 48 amps needed to fully charge a flat, 48 amp hour battery.
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- An average car battery lasts from 5 to 7 years. Usually the battery lasts longer if the vehicle is driven daily. If the vehicle is parked for extended periods of time without starting, the battery will need to be replaced sooner.
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How Long Will Your Electric Car Battery Last? It Depends Where You Live The answer, it turns out, depends on where you live, and how the battery is cooled within your car. According to the U.S. Department Of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) and Pike Research, where you’re based in the U.S. can vary battery life as much as five years.
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How Can I Prevent My Car Battery From Dying? How long do batteries last? Generally speaking, you can expect your car battery to last anywhere from five to seven years, with a few caveats. First of all, you get far more life out of your battery if you check your battery and drive your car regularly. If you park your car for the winter, for example, you’ll likely need to replace it sooner.
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5 in. Battery Operated Portable Fan Perfect for the office or on the go, the O2Cool 5 in. Battery Operated Portable Fan runs up to 55 hours on two D batteries (sold separately). Its powerful, 2-speed motor operates quietly at your desk, while traveling or anywhere you need to cool down. Suitable for both indoor and outdoor use, it also features a compact, folding design that makes it easy to carry and store.
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How car electrical systems work This type of circuit is called an earth-return system any part of it connected to the car body is said to be earthed. The strength of the current is measured in amperes (amps); the pressure that drives it round the circuit is called voltage (volts). Modern cars have a 12 volt battery. Its capacity is measured in amp/hours. A 56 amp/hour battery should be able to deliver a current of 1 amp for 56 hours, or 2 amps for 28 hours.
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How long does it take to charge a 12v deep cycle battery with a 10 watt solar panel? Amp Hours, or Ah, is the capacity of the battery. How much current a battery can delivery starting a car is called cold cranking amps. A deep cycle marine battery will typically be more than 40Ah. A 40Ah car battery at 50% charge will more than likely start your car in fair weather.Cold weather is another story. So, to get a completely dead car battery to 50% - 20Ah-would be maybe two days of full sunlight-with only a 50% charge, or about 12.2 Volts.t will take forever and a day to charge a deeply discharged deep cycle battery.......... consider that a small 110v battery charger is putting out 3-5 amps (or 3 x 110 =330 Watts) and the alternator on a car is putting out 20 to 50 amps at 14 volts (280 to 730 Watts). Source(s):
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- I wanted to know how long a car battery wil last before it can't start the car anymore if the whole car hifi system is on. My amp will pull 120 watts on full power. My HU will take 4x52 watts RMS.
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How long does it take to charge a car battery? Typical car battery holds 70 amp-hours, and typical small lunchbox sized charger is 10 amps, so 7 hours. A bit longer due to inefficiency. Check your charger and do the math. If you have one of those tiny cigarette pack sized 1 amp trickle chargers, might be longer, you guessed it, 70 hours :)
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How long does - on average - does a car battery last? OK this is based on you maintaining the battery and the charging system properly. On average 5 to 7 years for the average domestic vehicle. Now when I say maintaining your battery and charging system properly, this means yearly maintenance on the battery cells, battery posts and cables and checking the alternator belt tension.
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How can I charge a car battery at home? Four Methods:Preparing to Charge the BatteryUsing a Speed or Trickle ChargerJump Starting Your BatteryTroubleshooting Battery IssuesCommunity Q&A. Car batteries stay charged by harnessing the extra power of the car's engine, and most can go for at least five years without needing to be replaced or recharged. But even the best car batteries will run out of power eventually — or lose their charge prematurely when you leave your lights on too long.
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Parasitic draw diagnostic strategies This means 30 mA is the “acceptable” battery draw according to the battery manufacturer. In reality, a draw that small on a battery of a RC of 120 with a 30mA draw may take many weeks to go dead. However, if you double the number, now it takes two or three weeks. Triple the number, a week or so. It is easy to see how a 120 mA draw can cause a no-start in a few days, and even higher in a day or less.
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- Re: car battery. « Reply #1 on: 07/05/2014 16:00:48 ». Say the battery runs the starter for n seconds at 100 amps. The alternator can deliver about 50A so it will take a little over 2n seconds to recharge the battery if there is no other current drain on the alternator.
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- In a situation outlined in the OP, battery life is inversely proportional to your need for the car to start. Car lights on for 5 minutes, and you have a gushing head wound and must get to ER stat: car won't start.Car lights on for 48 hours, and you have to go have dinner with your ex and her new boyfriend (or some other really unpleasant chore): car will start.n a situation outlined in the OP, battery life is inversely proportional to your need for the car to start. Car lights on for 5 minutes, and you have a gushing head wound and must get to ER stat: car won't start.
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How Long Does a Car Battery Last? Under these conditions, you can probably expect your car battery life to be about six years. On average, a car battery lasts between two and five years. If you live in the northern United States, your car battery lifespan will be longer, because you’re in a cold climate.