I did some research on this in the past, and at least for JVC Projectors, a "Pure" sine-wave UPS is required.As for the duration, I only needed enough to properly power down the Projector in case of a power loss. If I wanted to continue to watch a movie, I would need enough UPS capacity to drive all my speakers and subwoofer, which would be totally impractical. So if the power goes out while I'm watching, I would just start the power down cycle on the Projector.I bought a CyberPower Pure Sine-Wave unit, CP1350PFCLCD, for a reasonable price. I tested it with my prior RS400, and it had no problem maintaining power long enough to properly cool down the Projector.
Thanks. Didn't realize Panamax made UPS as well. Will have him look into it.
I've had mine for over 10 years now. I just replaced the battery.
Your battery lasted 10 years or it died a while back and you are just now replacing?
The battery finally quit holding a charge and needed replacing after 10 years. A battery back up that could run a projector 10 years between charges would probably be really really large ! ;D
10 years for an SLA battery is WAY beyond what they are supposed to do. 3-5 years is more the norm. I got some Duracells for my last replacement that are claimed to be much longer lasting than typical (and more expensive than the basic 12v 8ah type batteries you'll see all over Amazon), but that was less than a year ago so it'll be a long time before I can verify that claim.
Only 3 years would be a bummer, since the replacement battery is $ 200.00 and a heavy beast !