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Ok I know we have played with this topic a few times but its driving me crazy it seems a bit off to me well frankly it is off for example.

Watts divided by Voltage= Amperage

so you take 100 Watts devide by say 13.8 Volts = 7.2 Amps

500 Watts divided by 13.8 Volts = 36.2 Amps

1000 Watts divided by 13.8 Volts = 72.4 Amps (I really dont see this being enough amperage am I wrong here Ive tried this in different wattages and it seems like its a bit short on amperage from my experience. I am thinking this also has alot to do with efficiancy of amplifier ETC.

I do this formula then ad 50% at the end result and it seems a bit more like one could believe

example

500 Watts divided by 13.8 Amps = 36.2 + 50% = 54.3 Amps
This to me is more in the ballpark of the figure. Am I not doing this right or understanding it? Is it based totally on a efficiancy factor? I also did this and instead of 50% I used 30% and those answers looked close to manufactures ratings like Texas Star ETC.

Can someone help me understand this here I really cant explain it to my kids until I know I have it figured out for myself LOL! I get mixed answers on this around my area so what are your thoughts?

<blockquote data-quote="TonyV225" data-source="post: 155549" data-attributes="member: 171">Ok I know we have played with this topic a few times but its driving me crazy it seems a bit off to me well frankly it is off for example.&nbsp;Watts divided by Voltage= Amperage &nbsp;so you take 100 Watts devide by say 13.8 Volts = 7.2 Amps &nbsp;500 Watts divided by 13.8 Volts = 36.2 Amps&nbsp;1000 Watts divided by 13.8 Volts = 72.4 Amps (I really dont see this being enough amperage am I wrong here Ive tried this in different wattages and it seems like its a bit short on amperage from my experience. I am thinking this also has alot to do with efficiancy of amplifier ETC. &nbsp;I do this formula then ad 50% at the end result and it seems a bit more like one could believe &nbsp;example&nbsp;500 Watts divided by 13.8 Amps = 36.2 + 50% = 54.3 AmpsThis to me is more in the ballpark of the figure. Am I not doing this right or understanding it? Is it based totally on a efficiancy factor? I also did this and instead of 50% I used 30% and those answers looked close to manufactures ratings like Texas Star ETC.&nbsp;Can someone help me understand this here I really cant explain it to my kids until I know I have it figured out for myself LOL! I get mixed answers on this around my area so what are your thoughts?</blockquote>

[QUOTE="TonyV225, post: 155549, member: 171"] Ok I know we have played with this topic a few times but its driving me crazy it seems a bit off to me well frankly it is off for example. Watts divided by Voltage= Amperage so you take 100 Watts devide by say 13.8 Volts = 7.2 Amps 500 Watts divided by 13.8 Volts = 36.2 Amps 1000 Watts divided by 13.8 Volts = 72.4 Amps (I really dont see this being enough amperage am I wrong here Ive tried this in different wattages and it seems like its a bit short on amperage from my experience. I am thinking this also has alot to do with efficiancy of amplifier ETC. I do this formula then ad 50% at the end result and it seems a bit more like one could believe example 500 Watts divided by 13.8 Amps = 36.2 + 50% = 54.3 Amps This to me is more in the ballpark of the figure. Am I not doing this right or understanding it? Is it based totally on a efficiancy factor? I also did this and instead of 50% I used 30% and those answers looked close to manufactures ratings like Texas Star ETC. Can someone help me understand this here I really cant explain it to my kids until I know I have it figured out for myself LOL! I get mixed answers on this around my area so what are your thoughts? [/QUOTE]

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