How many joules? 5s1500lcd

The answer to that question depends on the load. If you load the UPS lightly, you will be able to extract more energy (Joules) then if it had a heavy load. That's pretty-much the nature of batteries. I have an Ellipse PRO 1500 running a 55-inch TV, Stereo, and two PC-style computers. If the TV and Stereo are off, the UPS says I'm drawing 138 watts, and the UPS expects to be able to run for 41 minutes. With 1 watt = 1 Joule/second, that's about 340,000 Joules. If I turn on the TV and Stereo, the power rises to 442 watts, and the run-time drops to 7 minutes, 26 seconds. Now the total energy available in Joules is down to 197,000. I hope these two data points tell you what you need to know.

Does this have an alarm for when it is running on battery? If so can it be muted at all times?

The 3S350 does have an audible alarm when power is removed, beeping once every 3 or 4 seconds. Unfortunately, it is not very loud. Depending upon where it is placed you may not even be able to hear it. There is no way to silence the alarm. For my money this is still the best value.

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Eaton

Product ID: 22137805

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Details

Brand
Eaton
Battery Cell Composition
Lead-Acid AGM
Product Dimensions
5.9"D x 19.9"W
Voltage
120 Volts
Color
Black

⚡Pure sinewave output

💻8 battery-backed outlets

🔋50% longer battery life

Description

⚡ Power your productivity, protect your future.

SPACE SAVVY DESIGN - Compact footprint fits perfectly in tight office setups without sacrificing power capacity.
PLUG PLAY PEACE OF MIND - USB connectivity enables effortless integration with Windows, Mac, and Linux for smart power management.
EXTENDED BATTERY LONGEVITY - Patented Advanced Battery Management technology boosts battery life by up to 50%, reducing downtime and replacement costs.
ROCK SOLID PROTECTION WARRANTY - 3-year full system and battery warranty plus $150,000 connected equipment load protection guarantee.
SEAMLESS POWER FOR HIGH END GEAR - Pure sinewave output ensures flawless compatibility with active PFC workstations and storage systems.

The Eaton UPS delivers pure sinewave output for high-end workstation compatibility, featuring 8 battery-backed outlets and automatic voltage regulation in a compact design. Its patented Advanced Battery Management extends battery life by up to 50%, while USB connectivity ensures seamless integration with major operating systems. Backed by a 3-year warranty and a $150,000 equipment protection guarantee, it’s the ultimate power safeguard for professional environments.

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