I am sorry to say but with a bit of research you would have learned that "Renogy" = Run oh gee. They are a shlock product.
The reality that remains true always, you get what you pay for. Sorry, I know it's a pisser.
Proper TIER-1 PRODUCT is not cheap but will provide power for decades reliably and without worry.
Hard nuts truth:
12V is highly limited to light stuff.. RVs,campers and small stuff. People over push it and expect too much doing so... Most learn the $$$ foolishness later. You'll never get 350 horse power out of a 1981 Chevette if you get my meaning. DC POWER,& RELATED ARE NOTHING LIKE AC POWER, accept that fact.
Motors - fridge, freezers, AC, all compressors are hard start and draw a crap load at startup relative to the preload the to "push" against. Like an air compressor with no air in the tank provides no resistance at start But if there's 40psi in tank it has to push that creating a heavy start load. More pressure = more amps to start. Typical 120V motor can and will pull 15/20A to start under load. That's 1800/2400w. Start surge for up to 60 seconds. To be able to properly handle just that you want 3000w of inverter without overhear coverage.
Optimally, a 3000w Pure some "Low Frequency" can serve that well and allow for surges and overhead loading with issue.
Please review for better understand of Low vs High frequency inversion tech.
Understand the difference between high frequency and low frequency inverters with this quick article.
www.magnum-dimensions.com
There are several 12V/3000W LF inverter/chargers out there from value grade cheap Chinese models to high end Samlex/Victron tier-1 products and priced accordingly of course. Features, functions and capabilities go accordingly.
I can VERY HIGHLY RECOMMEND this for 12V. There are fully listed, used for telecom & emergency services & military applications as well... May even be in the ambulance or fire truck tearing down your road.
3000W 12V Pure Sine Wave Inverter/Charger with 130A Battery Charger + 70A Transfer Switch. Marine grade, heavy-duty power for rv, boat & off-grid. Lithium compatible.
samlexamerica.com
Hope it helps, good luck
Steve_S
PS:. BEST BANG FOR BUCK FOR ONE OF THESE
The Samlex EVO-3012 3000 watt 12 volt pure sine wave power inverter charger has a 130A 4 stage battery charger, 2 year warranty and free shipping!
invertersrus.com