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<blockquote data-quote="02WS6" data-source="post: 8695981" data-attributes="member: 678581"><p>We get about one of these threads a day. Your stock alternator and wiring cannot handle the amperage draw. </p><p></p><p>Here is some napkin math: </p><p></p><p>1500Watts/14.0V = 107 Amps</p><p></p><p>Your F150 needs 80-100 amps to run all the onboard electrical/lights/computers/ignition. It probably has a 120-140 Amp alternator (depending on trim level/engine size) so I'm ballparking here.</p><p></p><p>Your Amp is drawing more current then your current electrical system can support. Fix it in this order:</p><p></p><p>1: Big 3 - <a href="https://www.acdcwireandsupply.com/BIG_3_POWER_WIRE_KIT_p/big3-1-0-kit.htm" target="_blank">https://www.acdcwireandsupply.com/BIG_3_POWER_WIRE_KIT_p/big3-1-0-kit.htm</a></p><p>2. HO Alternator - (I run a QuickStart Alternator but choose your own based on budget/Amperage, 200 Amp+ is what you want)</p><p>3. Additional Battery - This is last item usually in a build for someone who has so much power draw they can't keep up with an HO alternator. Battery acts as a load balancer but can and will burn up a stock alternator.</p></blockquote><p></p>
[QUOTE="02WS6, post: 8695981, member: 678581"] We get about one of these threads a day. Your stock alternator and wiring cannot handle the amperage draw. Here is some napkin math: 1500Watts/14.0V = 107 Amps Your F150 needs 80-100 amps to run all the onboard electrical/lights/computers/ignition. It probably has a 120-140 Amp alternator (depending on trim level/engine size) so I'm ballparking here. Your Amp is drawing more current then your current electrical system can support. Fix it in this order: 1: Big 3 - [URL]https://www.acdcwireandsupply.com/BIG_3_POWER_WIRE_KIT_p/big3-1-0-kit.htm[/URL] 2. HO Alternator - (I run a QuickStart Alternator but choose your own based on budget/Amperage, 200 Amp+ is what you want) 3. Additional Battery - This is last item usually in a build for someone who has so much power draw they can't keep up with an HO alternator. Battery acts as a load balancer but can and will burn up a stock alternator. [/QUOTE]
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