700 MCA
85 Amp Hour
It’s 12 volts

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Answer by campbelp2002
The solar panels have to put out more voltage than the battery for them to charge it. You did not state what the voltage is. And they should not put out too much or it will damage the battery. You can monitor the voltage and current manually with a multimeter, but really you need a charge controller Between the panels and batteries to automatically control it. You really need to know some electric theory. At least Ohms law, V=IR. And know how to use a multimeter.

Answer by Shut r down
12-volt panels actually put out 14 to 17 volts which is necessary to charge a 12-volt battery. If you are using 12-volt panels and 12-volt batteries, the panels should NOT be in series unless the batteries are also in series and the charge controller is rated at 24 volts. Two non-similar batteries in series might not work well together.
Power (watts) = amps X volts, so an 80 watt 12-volt panel puts out 80/12=6.67 amps which should charge a battery overnight.

Answer by roderick_young
If you are sticking with the panel you have, then about all you can do to charge faster is track the sun with it, as opposed to just laying the panel at one tilt all day long.

If the battery has not charged noticeably in two days, I would get a voltmeter/ammeter and make sure that everything is working. An 80-watt panel ought to be able to put something on there in a day.

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Answer by Sullivan
Sorry but a 45 watt solar panel will not provide enough current to grant a 5000 watt inverter to begin running. Even if it did, you would not get more than about 30 or 35 watts out. Power out is always less than power in.

Answer by Rudydoo
Hey Katrina, sounds like you have been shopping at Harbor Freight. There are two types of power inverters in the world, intertie and independent. An intertie inverter will take power form any amount of solar you have, up to its rated limit. If you are looking on the shelf at power inverters that cost a few hundred dollars, they are not this type. An intertie inverter that is rated at 1000 watts will take solar power from several panels wired in series totalling any amount of power up to 1000 watts and synchronize its output with the grid power. Then it will directly feed solar power out to the grid, offsetting some of what your home is using. A 1000 watt intertie inverter might cost you $ 1500 USD or more.

The less expesive independent inverters have to be hooked to a battery, so the voltage going into the inverter is always regulated to nominal battery voltage. Then you can use your solar panel to charge the battery with. Most inverters you find on the shelf at Harbor Freight, auto parts stores, truck stops and sporting good stores are this type. They cost a fraction of what the intertie models do, but must have a battery to anchor the voltage feeding into the inverter. There is no reason you cannot use a 45 watt solar panel to charge a deep cycle boat battery, which feeds an inverter of this type, but you will not get a lot of power out of it for very long. Once the battery is discharged, it might take that panel a week to charge it back up again. We have an arrangement like this in our barn, 4 golf cart batteries run a 750 watt inverter, which is used to run a bank of compact flourescent light bulbs. The inverter is only used for a few hours each week, and the tiny 50 watt panel we have keeps the batteries charged up the rest of the time. Projects like this are fun and interesting, but with a 45 watt panel, you will not be offsetting much of your electric loads from your homes system. Good luck Katrina, and take care, Rudydoo

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Answer by tina
c.crane company look it up online

Answer by Bob
You can run a 60 watt light bulb when the sun is shining. Or your can charge a battery and then run the 60 watt light bulb at night. It theory if you had 8 hours of sun you would be able to run the bulb for 8 hours off of battery. In reality because of losses you will not get 8 hours of bulb running time.

Answer by f100_supersabre
There are many on the web charts on stipulations for home/business.

60 watts at 12 volts is 6 watts at 120 volts with 100% conversion.
MOST inverters are only 30-60% efficient, plus battery losses. (Batteries are required to “balance” load and for when sun is NOT shining.)

MOST TV’s draw 120 volts at about 500 watts

MOST homes these days are wired for 100 amps at 240 volts which is 24,000 watts even though they seldom draw this much at any given time.
A single standard home circuit is usually 15amps at 120 volts or about 1,800 watts MAXIMUM.

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Answer by Golfer
No need to be afraid. The lamp is rated at 60W because of heat output not because the socket is 60W. The 10w cfl (compact fluorescent light) that you have is fine.

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Answer by roderick_young
The price per watt is a figure of merit, but is not how the panels are sold, any more than a gallon of gas is sold by how many miles you will be able to drive with it. You purchase the gas at a certain price, then how many miles you actually get depends on what automobile you drive, and other factors.

In the same way, a certain model of panel is sold for an agreed-upon price. Let’s state it’s a 200-watt panel, and sold for $ 400. If the panel was rated in accordance with established standards, that means the panel will deliver 200 watts under best sunlight and temperature (that only happens about an hour a day, if that). So you can compute that the price was 400/200 = $ 2 per watt.

If the strong sunlight shines on the panel for 1 hour, then the energy produced is 200 watt-hours. This is where many people get confused. A watt is different from a watt-hour. A watt is a unit of power, like how strong a man is. A watt-hour is a unit of energy, like the work accomplished by that man in 1 hour.

The watt-hours or kilowatt-hours delivered are what light the rooms, run the appliances, or are sold to the power company. Getting those is a matter of having a good geographic location and installation.

Answer by Nick
I know if its a 4500 watt system that the cost per watt would be $ 6. and the cost for the installation would be added to your mortgage (

Answer by Matthew B
A solar power system includes, Solar panels + grid inverter + new power meter + installation.
Solar panel cost is not linear as you go up in size of solar panels.
Solar panel efficiency can be worked out by size and power output.
Price per watt does not relate to overall performance.
Total solar panel watts, your location e.g. average kWh/day solar radiation, the aspect of the solar panel and their angle is important. Solar panels should be facing the equator (N or S) and pitched at your latitude angle.
Some of the solar losses include grid inverter efficiency, cable losses, temperature coefficient (power output efficiency falls slightly at higher temperatures) and cleanliness of the solar panel surface.

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Answer by Hockey ball
no it cant. good question though.

what kind of deep cycle is it? unless its an AGM, you cant keep the battery inside. all non-sealed batteries release vapors which are explosive.

also depends on the amount of usable sunlight. no sun… food goes bad even with a battery.

If we take a typical situation of approx 6 hours of usable sunlight during the day (remember, direct sunlight – no cloud cover), a 50 watt solar panel and a small fridge (that uses 2.2 Amps per hour):

50 WATTS ÷ 12 VOLTS = 4.1 AMPS
4.1 AMPS – 10% = 3.6 USABLE AMPS
3.6 AMPS X 6 HOURS = 21.6 AMPS in 24 HOURS

This means the fridge could run for 10 hours using a total of 22 Amps.

Answer by Peter W
If you need certainty, the short answer is no.

The much longer answer is Maybe.

I found a few very small refrigerators that use 90 watts or less (none had freezing functions, by the way) but that is only part of the story.

a) A 90-watt panel gets its full rating in direct, strong sunlight – so perhaps an average of 4 hours per day with the rest of the day getting less. If rated at 90 watts, assume that the net-average will be closer to 50 watts.

b) Discounting rainy days and assuming 8 hours average sunlight per day, you will realize 400 net-watts of power delivered to the inverter.

c) You will get at least 20% loss through the inverter. Your net-net will be 360 watts to the battery.

d) If the compressor runs less than four (4) hours per day you will be fine assuming a 90-watt fridge.

If the compressor operates for 8 hours per day, it will be using something under 8 amps per hour, and assuming a 90AH Marine (AGH) battery – and the fact that you do not want to entirely discharge the battery even if a deep-cycle – you will get 3.5 days of safe use with that combination. So of you can get the battery charged each third day you would be fine.

Or, install two such panels.

Good luck with it.

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Answer by formeng
Hi,
Answer:
1059.5 watt hours or 1.0595 kWh.

Comments:
E= P*t (Power multiplied time = watt hours if power is in watts and time in hours.
E=224*4.73
=1059.5 Watt hours.
1059.5/1000=
1.0595 kWh.

Notice that the voltage is already a component of the power. That is, P=EI. (Where I is current in amperes.) The voltage is only important if you are trying to run some device at the solar cell voltage or, state charge a battery. Normally you would have an electrical device between the solar cell and the driven device(s) to convert the solar cell output to the type (AC maybe for a driven device or a lower voltage to charge a battery.) and voltage necessary for the driven device.

FE

Answer by roderick_young
Do you mean the Sharp ND-224-U1F? That module has a PTC (“real world”) rating of 197 watts. If you are using a grid-tied inverter with it, take away another 5-7% of the power. But the answer is the same, about 1 kWh, average daily output over a year. Late Spring will be more, early Winter will be less.

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Answer by Ned
yes you could, here is more info about solar panels if interested

http://renewableenergyarticles.blogspot.com/search/label/solar%20panels

Answer by Amy
You would still need a charge controller and battery to store the power you generate, and an inverter to convert the DC power to AC that your Computer needs. If you figure the panel could make 30W for about 5 hours, and you would have about 30% losses throughout the system, you could generate about 105 watt hours (wh) (30W x 5 hours – 30%). A laptop personal draws as much as 80W (newer ones use less), so if it ran for 1 hour, that would use 80wh. You could run it for just over an hour. You’d need about a 18 amp hour battery (105wh x 2 (you never want to drain more than half way) / 12 volts = 17.5ah).

Charge controller: http://www.altestore.com/store/Charge-Controllers/Solar-Charge-Controllers/PWM-Type-Solar-Charge-Controllers/Morningstar-Charge-Controllers-PWM/Morningstar-Sunguard-45A-12V-Pwm-Charge-Cntrlr/p793/

battery: http://www.altestore.com/store/Deep-Cycle-Batteries/Batteries-Sealed-Agm/Universal-UB12180-12V-18AH-20HR-Sealed-AGM/p1997/

Inverter http://www.altestore.com/store/Inverters/Off-Grid-Inverter/10-to-299-Watts/Samlex-150W-12V-Pure-Sine-Wave-Inverter/p1043/

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Answer by roderick_young
750 cold cranking amps might be just a 100 amp-hour battery. And even so, you would not want to draw the charge down below 80% during the day of heaviest activity. So a automobile battery is about right.

If you live in Arizona, maybe you can go smaller, 50 AH sealed lead-acid.

Answer by Mr.357
I would get a deep cycle marine battery for a trolling motor. A small one should be enough. You should have enough battery to open the gate for about 3 days without charging since depending on where you live, you might not have any sunlight for 3 days or so.

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