Q: How many watts to charge a 12v battey direct in 6 hours?

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"Watt" is a rate of using energy."4 kW" means 4,000 watts."4 kW for 6 hours" means 4,000 watts for 6 hours.If you use energy at the rate of 4 kW for 6 hours, then altogether you use24 kilowatt-hours, or 24,000 watt-hours, or 86,400,000 joules.

Convert the watts to kilowatts (divide watts by 1000), and multiply the result by the number of hours. Answer is in kWh, the unit used by the electrical companies for billing.

To obtain amps from watts a voltage must be given.

Your basal metabolic rate approximates 100 watts. Thus 1000 watt-hours equals about 10 hours of your existence.

The energy unit is not watts per hour, but watts times hour, simply called watt-hours.One BTU is equal to about 1055 Joules or Watt-seconds; that is about 0.293 watt-hours. Actually there are different definitions of the BTU.The energy unit is not watts per hour, but watts times hour, simply called watt-hours.One BTU is equal to about 1055 Joules or Watt-seconds; that is about 0.293 watt-hours. Actually there are different definitions of the BTU.The energy unit is not watts per hour, but watts times hour, simply called watt-hours.One BTU is equal to about 1055 Joules or Watt-seconds; that is about 0.293 watt-hours. Actually there are different definitions of the BTU.The energy unit is not watts per hour, but watts times hour, simply called watt-hours.One BTU is equal to about 1055 Joules or Watt-seconds; that is about 0.293 watt-hours. Actually there are different definitions of the BTU.

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To calculate the wattage needed to charge a 12V battery in 6 hours, you need to know the battery's capacity in amp-hours (Ah). Once you have the Ah rating, you can use the formula Watts = Volts x Amps to determine the wattage required for charging. Multiply the battery's voltage (12V) by its capacity in Ah, then divide by the charging time in hours (6 hours). This will give you the minimum wattage needed to charge the battery in 6 hours.

Voltage times current is equivalent to power (watts). You need to keep in mind that milli amp hours (mAh) is amps with a unit of time - it's a specific amount of current for 1 hour. Watts is an instananeous measurement; watt hours is the equivalent you should be looking for. there is no direct conversion for watts from voltage and mAh.

volts times amps equals watts, a measure of power. Amps times hours equals amp-hours, a measure of electric charge. Electric charge times voltage is energy. So 120 volts at 10 amps for 4 hours would pass 40 amp-hours of charge, the power would be 1200 watts and the energy would be 4800 watt-hours or 4.8 kilowatt-hours. So volts times amp-hours equals energy in watt-hours.

Yes, that is Naomi Watts. http://www.movienewz.com/king-kong-direct-tv-commercial/

5 watt hours means that the camcorder can consume 5 watts of power per hour of use. This measurement is often used to estimate how long a device can operate on a single charge. Factors such as the efficiency of the device and power management settings will determine the actual runtime.

Convert the watts to kilowatts, and the days to hours. Then multiply kilowatts x hours to get kWh.

To find the cost, we first calculate the energy consumption in kilowatt-hours by converting the watts to kilowatts (15 watts = 0.015 kW) and multiplying by the number of hours (0.015 kW * 24 hours = 0.36 kWh). Then, we multiply the energy consumption by the cost per kilowatt-hour (0.36 kWh * $0.06/kWh = $0.02 or 2 cents). So, it would cost 2 cents to charge the batteries for 24 hours.

You can't charge the battery with those 245 watts unless they are being 'pumped into' the battery at a higher voltage than the battery puts out. If you can exceed the voltage of the battery, that 245 watts will definitely charge a battery.

300 watts 0.3 kilowatts; 0.3kilowatts X 8 hours 2.4 kilowatt-hours

1 kilowatt = 1,000 watts 6 kilowatts = 6,000 watts 6 kilowatt-hours = 6,000 watt-hours

30 minutes is 0.5 hours. 1 kilowatt = 1000 watts, so divide both sides by 1000 and you get .001 kilowatts = 1 watt So 8 watts x 30 minutes = .008 kilowatts x 0.5 hours = .004 kilowatt hours.

You multiply the number of watts by the number of hours those watts are used, resulting in watt-hours. Electrical usage is often billed in increments of kilo-watt-hours, or how many thousands of watt-hours were used during the billing period.