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<blockquote data-quote="ChopTop84" data-source="post: 1555968" data-attributes="member: 19210"><p>what is your end goal? What do you want to power? Inverters are stupid power hungry and will suck a battery bank dry in a hurry. </p><p></p><p>Here is some rough numbers for ya (I love numbers).</p><p></p><p>1000 watt inverter will require up to 83 amps of power at 12v at peak demand.</p><p>2000 watt inverter will require up to 166 amps of power at 12v at peak demand.</p><p></p><p>A single 12v car battery is good for about 75 amp hours of power (mean 1 amp draw for 75 hours, or 75 amp draw for one hour), but in actual use, you only get about half of that, as deep discharges will hurt the battery, and the bigger the draw, the less likely you'll get the actual rating due to internal battery resistance and heat and other losses.</p><p></p><p>Inverters are great on large boats and RVs that can support a massive battery bank of 8 or 10 or 12 deep cycle 6 volt batteries. Same with houses.</p><p></p><p>Automotive inverters are not as handy once you start getting over the 500 watt range. With the batteries and beefed up alternator and cost of the inverter, you begin to get into the Honda EU2000 inverter generator cost. </p><p></p><p>We used to install Xantrex inverters on all the boats, but they went chinese, and the engineers jumped ship to form a company called FX inverters, and they wont tell you this, but rumor has it the FX stands for Eff Xantrex.</p></blockquote><p></p>
[QUOTE="ChopTop84, post: 1555968, member: 19210"] what is your end goal? What do you want to power? Inverters are stupid power hungry and will suck a battery bank dry in a hurry. Here is some rough numbers for ya (I love numbers). 1000 watt inverter will require up to 83 amps of power at 12v at peak demand. 2000 watt inverter will require up to 166 amps of power at 12v at peak demand. A single 12v car battery is good for about 75 amp hours of power (mean 1 amp draw for 75 hours, or 75 amp draw for one hour), but in actual use, you only get about half of that, as deep discharges will hurt the battery, and the bigger the draw, the less likely you'll get the actual rating due to internal battery resistance and heat and other losses. Inverters are great on large boats and RVs that can support a massive battery bank of 8 or 10 or 12 deep cycle 6 volt batteries. Same with houses. Automotive inverters are not as handy once you start getting over the 500 watt range. With the batteries and beefed up alternator and cost of the inverter, you begin to get into the Honda EU2000 inverter generator cost. We used to install Xantrex inverters on all the boats, but they went chinese, and the engineers jumped ship to form a company called FX inverters, and they wont tell you this, but rumor has it the FX stands for Eff Xantrex. [/QUOTE]
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