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Home > Archive > Electrical Engineering > February 2006 > extra trailer lights
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extra trailer lights
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| For example: John Smith 2006-02-28, 4:21 pm |
| I have a 6x10 utility trailer that I would like to add two more side marker
lights and 2 more rear marker lights to it so I would have to total of 13
lights on the entire trailer, will this present a problem for my battery?
Thanks.
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| Palindr☻me 2006-02-28, 4:21 pm |
| For example: John Smith wrote:
> I have a 6x10 utility trailer that I would like to add two more side marker
> lights and 2 more rear marker lights to it so I would have to total of 13
> lights on the entire trailer, will this present a problem for my battery?
You might overload the trailer/car trailer socket wiring and/or blow the
fuse to the socket.
Add up all the wattages of the lights on the circuit, divide by the
battery voltage and that will tell you the current. If that is more than
the fuse rating, which is there to protect the wiring, then you have to
reduce the total wattage until it isn't.
Let's say each lamp is 5W. Thirteen of them gives 65W. With a 12 volt
battery, that is about 5-6A. Which is probably going to be fine,
However, if each lamp is 25W, then the total would be 325W, equivalent
to 27A. Which is probably going to be too much for the fuse.
In terms of the effect on the battery, lets say it is rated for 50AH and
the engine is off. The 5W lamps would need several hours to flatten the
battery to the point the vehicle wouldn't start. The 25W lamps would do
that in less than an hour. Maybe much less than an hour..
--
Sue
--
Sue
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| spamTHISbrp@yahoo.com 2006-02-28, 6:21 pm |
| Punt and add LED lights.
very low current draw.
D
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