CyberPower OL8KRTHD High-Density Smart App Online Sinewave UPS [amazon.com] $7,265.45
8000VA/8000W, Double Conversion Topology, 6 Outlets and Hardwire Terminal Block, 4U, Pre-Installed RMCARD205
The CyberPower OL8KRTHD is a high-density, 8000VA/8000W online double-conversion UPS designed for 4U rackmount or tower installations. It provides continuous, pure sine wave power with zero transfer time to protect mission-critical equipment, featuring a pre-installed RMCARD205 for comprehensive remote management.
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With lead acid batteries, you will be replacing the them probably every 5 years, even if you don't use them at all, and sooner if you have frequent discharging. Neither of the lithium chemistries care about actually being used.
Most importantly, this item is $7,000 and can put out 8,000 watts for 11 minutes. Meanwhile you can buy a LiFePO4 power bank for $1,000 less which would power 8,000 watts for 1.5 hours, and the batteries will probably outlast the inverter. Granted, these aren't really designed to be UPSes, but this is why people look at "deals" like this and wonder this costs so much for what it does.
With lead acid batteries, you will be replacing the them probably every 5 years, even if you don't use them at all, and sooner if you have frequent discharging. Neither of the lithium chemistries care about actually being used.
Most importantly, this item is $7,000 and can put out 8,000 watts for 11 minutes. Meanwhile you can buy a LiFePO4 power bank for $1,000 less which would power 8,000 watts for 1.5 hours, and the batteries will probably outlast the inverter. Granted, these aren't really designed to be UPSes, but this is why people look at "deals" like this and wonder this costs so much for what it does.
Besides that, what would you need 8000 watts for at home ? In a server rack ?
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