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Basic 12V system for my 14ft tinny
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<blockquote data-quote="DaleH" data-source="post: 408858" data-attributes="member: 15636"><p>Great chart and has been shown on here in various forms a few times, just make SURE TO USE THE LENGTH of both the pos & neg runs, so if the loads are 6' from the battery, you would determine the wire needed for that total amperage needed (plus add for overhead) for a 12' run. Most people forget that part, to double the 1-way run length.</p><p></p><p></p><p>Add up the amp load of everything you're using, plus allow some for expansion and then determine the length. </p><p></p><p>If using an item, like a spotlight that is rated in watts, use the formula of Watts / 12.6 VDC (nominal voltage) = Amps. So a 55-watt light would be a 5-amp load. Some electrical items (starters, actuators, trim tabs, etc.) have a peak starting amp draw that is much higher than their continuous amp draw, but not so much for the items you're likely to add.</p><p></p><p>I believe 10 AWG would be fine for your run and I prefer good marine quality adhesive-lined ring terminals.</p></blockquote><p></p>
[QUOTE="DaleH, post: 408858, member: 15636"] Great chart and has been shown on here in various forms a few times, just make SURE TO USE THE LENGTH of both the pos & neg runs, so if the loads are 6' from the battery, you would determine the wire needed for that total amperage needed (plus add for overhead) for a 12' run. Most people forget that part, to double the 1-way run length. Add up the amp load of everything you're using, plus allow some for expansion and then determine the length. If using an item, like a spotlight that is rated in watts, use the formula of Watts / 12.6 VDC (nominal voltage) = Amps. So a 55-watt light would be a 5-amp load. Some electrical items (starters, actuators, trim tabs, etc.) have a peak starting amp draw that is much higher than their continuous amp draw, but not so much for the items you're likely to add. I believe 10 AWG would be fine for your run and I prefer good marine quality adhesive-lined ring terminals. [/QUOTE]
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Basic 12V system for my 14ft tinny
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