solar power
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- stylzmovement
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solar power
I have added up the amperage need to power my transmiter, and my wireless laptop, I have a total of 4 amps.
How will I power this from a solar system with a car battery attach to the system. I will like to use the solar system to charge the battery for night time use; the system will run 24hrs a day ,
this is a total of 4amps per Hour .
can i get a solar system to charge the battery for about 10 hours of night time use?
How will I power this from a solar system with a car battery attach to the system. I will like to use the solar system to charge the battery for night time use; the system will run 24hrs a day ,
this is a total of 4amps per Hour .
can i get a solar system to charge the battery for about 10 hours of night time use?
But doesn't the laptop need 19V?
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
- stylzmovement
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- Joined: Sat Oct 11, 2003 8:59 pm
Just calculate the total amount of Ah, ampere hours needed.
4A x24h equals ~ 100 Ah. You need to get at least that much
from the solar cells during day. Plus, since the acc
won't store all of the energy and you will loose something
due to losses. Let's say you need about 120 Ah to get
through the day 24/7.
That means solar cells must provide 10A for 12 hours (lets say that's a 12h day)
at a voltage sufficient to charge the acc, that is about 15V at least.
That's ~ 8-10 our 15W solar panels from the website and at least a 60Ah car battery
4A x24h equals ~ 100 Ah. You need to get at least that much
from the solar cells during day. Plus, since the acc
won't store all of the energy and you will loose something
due to losses. Let's say you need about 120 Ah to get
through the day 24/7.
That means solar cells must provide 10A for 12 hours (lets say that's a 12h day)
at a voltage sufficient to charge the acc, that is about 15V at least.
That's ~ 8-10 our 15W solar panels from the website and at least a 60Ah car battery
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
The inverter for the laptop will be grossly inefficient, output from the solar panels will be reduced on overcast days (dependent on the amount of overcast of course)--so you'll need to have a large enough battery to get through cloudy periods and sufficient generation capacity to recover from extended periods of low output from the panels.
I'd take the numbers Marko provided and add in a 1.5 to 2.0 duty factor.
I'd take the numbers Marko provided and add in a 1.5 to 2.0 duty factor.
-cliff knight-
My Miata
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- stylzmovement
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Your battery will be empty in a few minutes, if you want to run a 300W transmitter.
With 50Ah car battery you may get 15 minutes time with one car battery.
Your current draw at 12V would be 40 amps. You would be loosing a lot of power
in the DC connection cables. And it would have to be heavy duty cable.
There is always a reason...
With 50Ah car battery you may get 15 minutes time with one car battery.
Your current draw at 12V would be 40 amps. You would be loosing a lot of power
in the DC connection cables. And it would have to be heavy duty cable.
There is always a reason...
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
We sold one panel and regulator immediately folowing this thread
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
- stylzmovement
- Compulsive poster:)
- Posts: 142
- Joined: Sat Oct 11, 2003 8:59 pm