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How long would a 85 amp hour battery last using 35 watts?
85/35=2.4286 hours.
How long will a 12 volt battery provide 100 watts?
To calculate the duration a 12 volt battery will provide 100 watts of power, you can use the formula P = V x I, where P is the power (100 watts), V is the voltage (12 volts), and I is the current. Rearranging the formula to solve for current, we get I = P / V. Plugging in the values gives I = 100 watts / 12 volts = 8.33 amps. The battery's capacity, typically measured in ampere-hours (Ah), can then be used to determine how long the battery will last. If the battery capacity is say 50Ah, you can divide the capacity by the current to find how long the battery will last: 50Ah / 8.33A = approximately 6 hours.
How many hours will 3600 watts last on a 637 amp battery?
To determine the hours a 3600-watt load will last on a 637 amp battery, you need to convert the wattage to amperes. You can do this by dividing the wattage by the voltage of the battery. Assuming a standard 12-volt battery, 3600 watts divided by 12 volts equals a current of 300 amps. Dividing the battery capacity (637 amp-hours) by the current (300 amps) gives you approximately 2.12 hours of runtime.
How long does a 12v 7ah 20hr battery last?
Depends on the current draw of what you hook it up to. At a draw of 7 amps (80 watts) it'll last for one hour. At a draw of 1 amp(12 watts) it'll last for 7 hours, ASO.
How long would a 12 volt 7 amp hour battery last if converted to 120 volts ac using 20 watts?
Assuming this could be done with no conversion loss a 20 watt load at 120 volts would require about 1/6 of an amp. A 7 ampere hour battery would run the load for 6 x 7 = 42 hours. However, if you actually built a circuit to up convert 12 volts DC to 120 volts AC there would be significant conversion losses.
What does 63 whr mean?
It stands for watt-hour. In relationship to batteries, it measures how many watts in an hour a battery can sustain. A 63 watt-hour battery will supply 63 watts for 1 hour, or 6.3 watts for 10 hours or 31.5 watts for 2 hours, etc. It is extremely difficult to determine, from this number, how long your equipment (say, a laptop) will run using a 63 hour battery. The thing for which this number is most useful is battery comparison. A 20 WHr battery will last twice as long as a 10 WHr battery and half as long as a 40 WHr battery and so on.
How many batteries would it take to light a 12 volt 100 watt light bulb?
12 volt batteries vary in size. You need to look at the amp hours of a battery and multiply by the voltage. So, a 100 amp hour battery at 12 volts is 1200 watt hours. 30 watt bulb will eat that up at 30 watts and hour. 1200 divided by 30 is 40 hours. Simple huh!? *Something to keep in mind is if your 30 Watt light bulb is rated 30 watts at 12 volts. If it is rated 30 watts at 24 volts, 110 volts or another voltage it will also change the length of time your battery will last.
How long will your 100ah battery last with a 20Watt light on?
To determine how long a 100Ah battery will last with a 20W light, you first convert the wattage to amps. Using the formula: Amps = Watts / Volts, and assuming a 12V battery, the light draws about 1.67A (20W / 12V). Therefore, a 100Ah battery would last approximately 60 hours (100Ah / 1.67A) under ideal conditions, without accounting for factors such as battery efficiency and depth of discharge.
How long will a 1.5 Ah rated battery last on a 19.2 volt drill?
The runtime of a 1.5 Ah battery in a 19.2-volt drill depends on the power consumption of the drill, typically measured in watts. To estimate the duration, you can use the formula: runtime (hours) = battery capacity (Ah) / current draw (A). If the drill draws, for example, 5 A, the battery would last approximately 0.3 hours or 18 minutes. For a more accurate estimate, you would need to know the specific current draw of your drill during operation.
How long does a 4400mAh battery last for?
That depends on the load. If the load is 1 milli-amp, the battery would last for 4400 hours. If the load is 8800 milli-amps, the battery would last for 1/2 hour. (in a perfect world, discounting electrical inefficiencies)
What size battery needed to run ten 60 watt bulbs?
Ten 60 W bulbs would need 600 W, and a 12 v battery would therefore have to supply 50 amps. A 50 amp-hour car battery would theoretically supply that for one hour, but in practice the capacity is reduced when the load current is high. So a car-battery would do the job for about half an hour. To last for eight hours overnight would need 8-10 car batteries connected in parallel.
How long would an 8 Amp hr battery last with 75mA current draw?
An 8 Amp hr battery would last approximately 106.67 hours with a 75mA current draw. This is calculated by dividing the battery capacity (in Amp hours) by the current draw (in mA) and converting the result to hours.
