Go Power! GP-SW1500-12 1500-Watt Pure Sine Wave Inverter , Yellow

I put it in my Kenworth class 8 truck. Using dual 2 Gauge wires from the positive battery terminals, and the same configuration for ground connections (also direct to the batteries), this unit has not failed to do anything I ask it to. It doesn't even blink an eye when I am cooking with my Sharp microwave, and printing from my brother HL2170DW laser printer at the same time. For a long time I struggled with the cobra 2500 watt modified sinewave inverters, replacing one after another. They are total garbage. Finally, I wised up, bought this GO POWER unit, and I no longer think about powering my devices; It's just there, works great, and allows me to focus on actually using my stuff instead of if the inverter will die soon, or I will due to a fire :( :( If you have a big rig and are tired of the overpriced garbage from the truck stops, GET THIS UNIT! I used to be a real big fan of Xantrex, and was skeptical about trying a new brand. Well after reading the reviews, and seeing that Xantrex is cheaply made junk these days, GoPower! was the logical choice. The inverter is always in an "ON" state for me, but is quiet, and rarely turns it's cooling fans on unless it's under a big load. It's well made, sturdy, and has stood up to the harsh conditions of a long-haul truck for 4 months so far, with no sign of a problem. If you buy it, take you time, use proper supply wire specifications, and mount it properly. Thanks GoPower!

This thing is very large, about 2 or 3 times the size of a 1500 watt modified sine wave inverter. It works exactly as expected and generates a perfect sine wave (verified by oscilloscope). It has one minor issue in that the power saving feature which shuts it down to 1amp draw when nothing is drawing power does not always turn on when something like an LED light is used with it, the LED light does not seem to draw enough power to wake up the unit every time. It works best with equipment and lighting that pull a couple of amps when turned on. once on it will keep the LED lights going, it just needs a kick when very low power equipment is attached.my setup is 2 - 12 volt deep cycles in parallel, using 2 gauge wire and a 200 amp fuse.

UpdateUsing a different ammeter I find the idle current is 1.1A and .08A in power save mode. This is in line with the specs and my previous review was incorrect.OriginalSome specs say this has a 15v maximum input voltage, others say 16v. The bar graph voltmeter on the front panel goes to 16 and the manual I found that described the power save procedure agreed with that. That is good news because equalizing lead acid batteries requires 15.4v and I didn’t want to have to remember to shut this off when equalizing.More troublesome is that some specs say this draws 1a of idle current but others say it’s 1.7a. I’m measuring 2A of idle current without power saving enabled. I am disappointed because I live offgrid where that matters a lot. I specifically did not want the newer version, the ISW-1500, simply because it’s idle current is 1.8a (it’s surge current is much higher but that isn’t important to me.)With power saving enabled I measure only .17a current draw. It takes 5 seconds to sense a load and turn on.To enable/disable power save mode you remove all loads, turn it off, wait a few sec, turn it on and WHILE THE LIGHTS ARE FLASHING turn it back off. That toggles power saving for the next time you turn it on, when it’s enabled the power save light should be lit. Within a few seconds it will begin blinking indicating that it’s hunting for a load.In all other respects I’m very happy to have gotten one of these. They’ve been installed in utility trucks all over and have a great reputation for toughness.This was a scratch-and-dent model so it was much cheaper and for that reason I’ll live with the higher than expected idle current. The shipping box was unscathed but the manufacturers box that actually held the unit was quite battered and labeled ‘reconditioned’ (I may have misread the ad). The unit and it’s styrofoam protectors were pristine and showed no sign of trauma. The manual that came with the unit did not specify how to enable power saving and the GoPower site does not have manuals for this model which is discontinued. I found a manual somewhere else that explained it.

I installed it in the cargo area of my 21 feets trailer.Hooked it to the a battery bank ( 2 x 100 amps).I haved utilized it a couple time only, so far so good!

Works great, runs any high end electronics.

So far so good. Used it yesterday to run a 400 watt Fiber optic oven and it was fine. Didn't kill my truck battery over the course of an hours use. Just make sure you use heavy cable 2AWG and both crimp and solder your lugs. Go to eBay for a breaker. Got a 200 amp breaker for $60 instead of $200 for slow blow fuse here.