800W Pure Sine Wave Inverter 12V DC to 120V AC for RV and Solar

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1. KimB. Verified Buyer – 7 May 2024

   I purchased the beltt 2000 Watt pure sine wave inverter for my solar generator project. It is well made. it works well with my 12 volt system. It has three outlets and a display that is colored and is very easy to view.
   Pros: it has three outlets, one of them a 20 amp outlet. It also has a USB port. It is compatible with most 12 volt systems. It has a remote control with a display that is attached by cable. The wires are heavy duty and work well and do not get hot when used for a period of time. It is a pure sign inverter which is a plus.
   Cons: it is big and bulky for my project. Other than that, there are no other cons that I have experienced.
   

2. WATCH HERE! Please watch it before buying Verified Buyer – 9 March 2025

   WOW, I’m impressed! It met all specs, 3000 Watts continuous AND 6000 Watts inrush. I did a full evaluation. Beautiful sine wave, not just at idle but also at full load (shown in picture). I tried circular saws, angle grinders, shop vacs and space heaters, right up to 288 DC amps input continuous with 25.38 amps at 119 vac out = 3020 watts! Fans come on when load increases and not overly noisy, less than 50 db @ 1 foot 19.9khz. Fan won’t come on immediately below 500 watts or until it gets hot. At 250 watts the fan may never need to turn on. An electric blanket or T.V. Probably won’t start the fan. The fans being on should be a subtle reminder that you are pulling power and using your battery. More specs; Weight less than TEN POUND! Frequency at idle 59.9 Hz and at full load 59.8 Hz. Idle current 24Watts or 1.8 amps. Indicated DC voltage is actually .050 lower than actual. Use a tie straps to secure the terminal protectors, don’t sandwich the plastic to attach the cable lugs. Provided cables are 50mm2 (equivalent to #1AWG) vinyl jacket makes it look bigger. This should be sufficient for most but it should be noted that it will get hot at sustained full rated load and will account for 1/4 volt loss at the inverter’s terminals when loaded and when the battery is low it could cause a low voltage shut down that little bit earlier. Since the inverter is so good for the price point I won’t take a star away. For a good install and any length of distance longer than cables provided, use 4/0 cables and 400 T class slow blow fuse and BlueSea holder. For LifePO4 batteries you will need; one battery with a high quality BMS rated at least 300 amps OR two batteries, each with 200 amp bms’s in PARALLEL to attain full power potential of this inverter. For lead acid perhaps one large battery (high cranking current) may work but it will be depleted much faster than lithium. Be sure to “pre-charge” before connecting even if it’s turned off. A simple filiment light bulb will work.

   

3. Bowman Verified Buyer – 12 March 2025

   This is my first Belttt inverter, a 2000/4000 watt unit. It replaced an older unit of a different brand. I have it connected to four 100Ah lithium batteries which are charged by eight 200 watt solar panels. I use it to power an older refrigerator and a chest freezer. It has performed flawlessly for several weeks now. One thing I appreciate is the quiet cooling fans which only cycle on at times of heavy output. My old inverter was terribly noisy. I would buy one again without hesitation. It was packaged well, has a very nice remote display and has good instructions for installation and use.
   

4. westra Verified Buyer – 13 March 2025

   2000W inverter. Wow! Super impressed by this inverter! Inverters I have had in the past disappointed me, most put out 108-110VAC. This one steady 119-120VAC, no matter what load I put on it. Plugged in a small fridge, toaster, and hair dryer – pulling 1750 watts and steady output! I had inverter connected to a lead deep cell battery, did not want to damage the undersized battery so did not run for more than 30 secs., voltage on battery dropped to 10.8VDC but inverter kept right up with load.

   Now I am ready to purchase the larger Lithium battery(s) to run my set up for class B van (small microwave, rooftop AC, fridge, etc.

   Liked the supplied cables, the remote control panel with On/Off switch, the clear readouts. Great design, 60 Hertz and steady voltage output no matter what the load was. Very happy!