[KYHAM] Battery Lesson Learned...help needed

AG4XM at fuse.net AG4XM at fuse.net
Mon Jun 14 16:57:18 EDT 2004


I thought this table might be useful:
http://www.amplepower.com/primer/gauge/index.html

The table shows the wire size required for a 3% voltage drop in 12 Volt
circuits. To use the table, first calculate the total length of the wire
from the source to the device and back again. Next, determine the amount of
current in the wire. The wire gauge is found at the intersection of Amps and
Feet. In most load circuits, a 3% drop is quite acceptable. In charging
circuits it often pays to have less of a drop. Always use one size bigger if
practical.

As a matter of fact... This web site, though geared toward the marine/motor
home user, is applicable to a lot of amateur installations.  Good
Information here: http://www.amplepower.com

Who am I kiddin'.... "12-volt radios are for sissies... A REAL radio can
kill you! " :)

Tim Anderson, AG4XM
KY Section Technical Coordinator




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