AllPowers R4000 Power Station! Best Backup Power?

AllPowers R4000 Power Station (2 Month Review).

Link: https://www.amazon.com/promocode/A3AWU22FXBYPRB
^ From February 28 to March 26 you'll only pay 2439 ^

All powers 4000 features the following:
*3000W, 3600Wh Capacity
*3600W/4000W AC Pure Sine Wave Output (6,000W Surge)
*LiFePO4 battery for over 3,500 life cycles to 80%
*Expand the capacity from 3600Wh to 21600Wh with 5pcs R4000
*Fast Charging:From 0-100% in 1Hours(EV charging+Solar input/Wall charger)
*Unique Voice Control, Smart Wifi and Bluetooth Control Function
*Support touch screen operation
*UPS Battery Backup
*Solar Input:12V-150V,40A,2000W Max MPPT
*Eco-friendly/Gas free/Quiet/Cost-effective

My Amazon Store: https://www.amazon.com/shop/oxfoot