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<blockquote data-quote="Rob Timmerman" data-source="post: 32217" data-attributes="member: 172">Re: Power InvertersAs far as modified-sine vs. true sine, the extra harmonic distortion in the modified sine inverters can be hard on the front-end circuitry in SMPS, leading to reduced lifetime (the power supplies run hot).Now, that 5kVA inverter, assuming an 85% efficiency (pretty typical) is going to be pulling ~490A at full load.&nbsp; That&#039;ll drain your starting batteries pretty quickly, especially with only a 200A alternator recharging them.&nbsp; Not to mention that starting batteries aren&#039;t really designed for continuous loads applied to them.&nbsp; And all this is assuming that you can get everything wired in and fused properly.The extra wear on your truck engine is real, and with only a 5-6kW load on the engine, you&#039;re likely well outside the efficiency band of the engine.&nbsp; So now your fuel costs go up.I&#039;m with the others on this, it&#039;s not worth the downside.</blockquote>

[QUOTE="Rob Timmerman, post: 32217, member: 172"] Re: Power Inverters As far as modified-sine vs. true sine, the extra harmonic distortion in the modified sine inverters can be hard on the front-end circuitry in SMPS, leading to reduced lifetime (the power supplies run hot). Now, that 5kVA inverter, assuming an 85% efficiency (pretty typical) is going to be pulling ~490A at full load. That'll drain your starting batteries pretty quickly, especially with only a 200A alternator recharging them. Not to mention that starting batteries aren't really designed for continuous loads applied to them. And all this is assuming that you can get everything wired in and fused properly. The extra wear on your truck engine is real, and with only a 5-6kW load on the engine, you're likely well outside the efficiency band of the engine. So now your fuel costs go up. I'm with the others on this, it's not worth the downside. [/QUOTE]

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