Battery Backup for LCD TV

[MJA]

I just ordered the Westinghouse LVM-37W3 37" (and my 1st LCD TV ) yesterday,and I like to know if this battery Backup is enough to power the TV

Belkin Battery Backup with Surge Protection - 550VA

http://www.buy.com/prod/Belkin_Battery_Backup_with_Surge_Protection_550VA_F6C550_AVR/q...tml?adid=17662

also,,,,,,,,any nice dvd player with HDMI for less than %100 (no damn Philips )

[Richard_G]

Look at the spec, 330W for up to 28 minutes. What is the power consumption of the TV? If less than 330W, yes, but only for 28 minutes.

[MJA]

"What is the power consumption of the TV?"

I'm not sure .I checked westinghousedigital.com I didn't see any info about the power consumption

http://www.westinghousedigital.com/details.aspx?itemnum=56#VALUE


2 main reasons for buying this UPS

1-Surge Protection
2-trouble free electricity supply

[Richard_G]

Both good reasons if your supply is that unreliable, but you still need to know the consumption of the TV to know if it will power it.

[edDV]

TV power looks like 210W
http://www.hdtvsolutions.com/Westinghouse-LVM-37w3.htm

So maybe he'll get 44 min but those batteries loose capacity quickly with use.

[MJA]

TV power looks like 210W
http://www.hdtvsolutions.com/Westinghouse-LVM-37w3.htm

So maybe he'll get 44 min but those batteries loose capacity quickly with use.

I forgot one more thing.I'm going to add 2 more things

SAMSUNG DTB-H260F High Definition Terrestrial Tuner
DVD player

I guess that will cut the time to 10 min

[Richard_G]

Find out the power requirements of each unit and add them together. If the total consumption is less than 330W, you're OK, if it is greater than that, the UPS isn't up to it. A UPS works by coverting the incoming AC voltage into a DC voltage to trickle charge the batteries. The batteries then drive an oscillator circuit to generate the 60Hz AC signal at 12v which is then transformed up to 120v. Consequently, the power rating is a maximum whether the original mains electricity supply is there or not. It is always in circuit and not only when the mains supply fails.

[MJA]

ok here are the numbers.

TV 210W

Tuner 15W

DVD 8 W ( Zenith DVB612 not 100% sure if I'm going to buy it )

numbers look good

update....I just bought it for $37 using google checkout ($20 off over $50)

Thank you guys for the help

[Nelson37]

Just a note here. The description given for how a UPS works is correct, however these units are NOT true UPS, they are Battery Backups. The connected device is NOT always running from the battery as in a UPS, the power is switched very quickly (nanoseconds) from line power to battery when power is lost.

Another note - Power output is measured in Volt/Amps. Now when I went to school, Watts are equal to Volts x Amps. Apparently this is not true for battery backups. There is some sort of conversion factor involved, the upshot being that the listed "Volt/Amp" rating is 10% to 20% higher than the actual wattage available. This information comes directly from APC tech reps, confirmed independently by reps from Panamax.

Belkin products are decent, but I would not put anything valuable on any Battery Backup but an APC (or possibly a Panamax). They guarantee repair or replacement even in case of a direct lightning strike, no disclaimer, and I have personnaly witnessed this policy in action in more than one case.

[Webster]

Another thing to consider in addition to the usage wattage. The TV maybe using only 210watts/hr. But how many initial watts does it needed to start working (surge wattage) The combine surge wattage + normal usage wattage may exceed 330 watts rated of the backup power supply...

Edited: just noticed the date on the original post... DUH!!! my bad....