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My work got a huge Roland VG2-640 Plotter Printer with is 8 amp or 1090W.

Our site has bad power but does have a Generator that kicks in after 5 minutes. This thing is expensive and does 20 minute jobs.

They asked me what battery backup choice for the printer. I usually don't recommend UPS for something like that but more a line conditioner option as something this big will kill a UPS in my experience. I contacted Roland but couldn't get anyone on the phone or no response yet from email. A 1500 Watt unit could? At the same time this is all NEMA 5-15P plugs. Meaning anything higher will require new wiring and outlet.

Has anyone had experience doing this with such high wattage?

Any help would be appreciated. I'd like to have more concrete info than it won't work or you are going to have to spend some money to get your result.

My work got a huge Roland VG2-640 Plotter Printer with is 8 amp or 1090W. Our site has bad power but does have a Generator that kicks in after 5 minutes. This thing is expensive and does 20 minute jobs. They asked me what battery backup choice for the printer. I usually don't recommend UPS for something like that but more a line conditioner option as something this big will kill a UPS in my experience. I contacted Roland but couldn't get anyone on the phone or no response yet from email. A 1500 Watt unit could? At the same time this is all NEMA 5-15P plugs. Meaning anything higher will require new wiring and outlet. Has anyone had experience doing this with such high wattage? Any help would be appreciated. I'd like to have more concrete info than it won't work or you are going to have to spend some money to get your result.

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[–] • 0 pt

Use a "hybrid invertor" and deep cycle lead acid. Since you're feeding it with electric service you could use one designed for RV/boat shore power. These start at about $3k.

Or you could just run everything off an inverter non-stop and keep your batteries topped up with a DC converter designed for RV use. That would be the cheaper option.

[–] • 0 pt

A combined inverter/charger will switch from.external ("shore") power to inverting from the battery, but make sure the switch will be fast enough to keep the printer running. I was doing this 20 yrs ago, and the switching was not fast enough to keep my computer running.

[–] • 0 pt

The hybrid inverters are pretty good now. They sync with shore power and soft switch.You can run large appliances such as an electric stove while the RV is only connected to 15 or 20 amps. It will draw from the battery to help supply the load and then charge the battery when the load is low.