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APC Back-UPS Pro BN 1500VA Battery Backup and Surge Protector + Free Shipping $159 after $48 coupon

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Waveform Type: Stepped approximation to a sinewave

Safely shut down computer systems and guard connected equipment from surges with the Back-UPS 1500VA Battery Backup & Surge Protector from APC. The UPS is armed with a total of ten NEMA 5-15R outlets, with six providing surge and backup power and four designed for surge protection only. In the event of a power outage, the UPS comes equipped with an internal battery that delivers up to 900W of power. The battery-powered outlets provide up to 4.1 minutes of use at full load and over two hours at 50W. For electrical spikes, the UPS has a 1080J surge energy rating. Other notable connections include coax, USB, and Ethernet ports for safeguarding video and network signals. Included along with the backup UPS is a USB cable, a coaxial cable, a USB power adapter, and a downloadable PowerChute software program to monitor energy usage and prevent data corruption by automatically saving files and shutting down a computer system.


https://www.bhphotovideo.com/c/pr...D45E8FB929
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#2
Waveform type
Stepped approximation to a sinewave
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#3
Quote from irkage
:
Waveform type
Stepped approximation to a sinewave
Just started considering a UPS today, can you explain what this means by chance? Should I be looking to a particular waveform?
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#4
Quote from Script_Kiddie
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Just started considering a UPS today, can you explain what this means by chance? Should I be looking to a particular waveform?
You are usually looking for a true sine wave ups if you can get one. The issue with stepped sinewave is that it can cause issues with sensitive equipment or even a/c motors. Also some computers have issues with it if they have active power factor

Quote :
"The requirement for a pure sine wave relates primarily to Active Power Factor Correction (PFC) power supplies in the computer. For these, a non-sine waveform can cause a shutdown, defeating the whole purpose for having a UPS."
Usually you won't notice an issue, but you could so
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#5
Quote from Script_Kiddie
:
Just started considering a UPS today, can you explain what this means by chance? Should I be looking to a particular waveform?
https://superuser.com/questions/9...e-wave-ups

Basically, certain devices will not operate correctly without a true sine wave. (Some 3d printers, certain older pcs, or pcs that utilize an auto ups shutdown, and lastly any mission critical equipment like medical devices and other sensitive electronics. Most of the time though, the simulated sine wave is good enough.
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#6
Quote from Script_Kiddie
:
Just started considering a UPS today, can you explain what this means by chance? Should I be looking to a particular waveform?
The one APC from B&H Photo produces simulated sine wave power not to be confused with sine wave power. The complexity of producing pure sine wave is bigger and therefore more expensive.

Here's a graphic representation of the differences of what happens during each cycle of power production:

Click image for larger version

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Black line is sine wave, red is stepped [simulated sine wave (aka PWM)-- actually a modified square wave], blue is square wave. PWM is fine for equipment like DVRs, modems, routers, fax machines (non laser), ink jet printers.

Newer PCs (especially those built for gaming) have what is called "Active" PSUs (power supply units). IMHO, they simply will not function correctly unless they are fed sine wave power. They along with other sensitive equipment (e.g. medical) are picky eaters when it comes to power. Most people have heard of spikes, surges, brownouts and blackouts. Truth is, the issues with power go far beyond these terms. Here is a brief overview of the 7 types of problems that our modern electronics have to contend with:

Click image for larger version

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#7
In market looking to buy. Is this a good deal.?
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#8
Quote from delton1
:
The one APC from B&H Photo produces simulated sine wave power not to be confused with sine wave power. The complexity of producing pure sine wave is bigger and therefore more expensive.

Here's a graphic representation of the differences of what happens during each cycle of power production:

Attachment 8311252

Black line is sine wave, red is stepped [simulated sine wave (aka PWM)-- actually a modified square wave], blue is square wave. PWM is fine for equipment like DVRs, modems, routers, fax machines (non laser), ink jet printers.

Newer PCs (especially those built for gaming) have what is called "Active" PSUs (power supply units). IMHO, they simply will not function correctly unless they are fed sine wave power. They along with other sensitive equipment (e.g. medical) are picky eaters when it comes to power. Most people have heard of spikes, surges, brownouts and blackouts. Truth is, the issues with power go far beyond these terms. Here is a brief overview of the 7 types of problems that our modern electronics have to contend with:

Attachment 8311258
Thank you everyone for the information, it's all really helpful. For background, I've had a couple of power surges with a couple recent storms which were enough to power off my 2 NAS's, so I'm looking for something to get them last these hurdles until the power is no longer interrupted. We've never had a full blown power outage, so I don't think I need a long term battery solution. Should I still be looking for a true sine wave UPS since a NAS is pretty sensitive given the use case?
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Thanks.
This or the one from Amazon - https://www.amazon.com/dp/B000FBK...ljaz10cnVl
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Last edited by armington August 12, 2019 at 02:55 PM.
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#10
Is this a good deal?
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#11
I have a desktop and the power goes out way too often. I don't care if desktop shuts down I just want to make sure it (hd) doesn't die. I want it to go to sleep when power goes out like laptops do when battery is dying.

Is this thing an overkill for what I need?

I remember there used to be some under $100 or some even under 50. I was looking to get one of those. I just want it to last three to five years or longer
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Last edited by zyx987 August 12, 2019 at 02:57 PM.
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Quote from armington
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Thanks.
This or the one from Amazon - https://www.amazon.com/dp/B000FBK...ljaz10cnVl
In the past I would have considered Cyberpower to be inferior to APC. Not really sure how they compare these days.
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#13
IMHO this is not a good deal. I purchased the Cyberpower equivalent for $115 and I have had much better luck over the years with Cyberpower over APC. Also my Cyberpower has 6 surge and 6 battery back up. This APC has 5 of each. For reference https://slickdeals.net/f/12892717-cyberpower-1500va-900w-intelligent-12-outlet-lcd-ups-110-free-s-h?from_da_id=53114747&sdxt01=2019-03-04+12%3A46%3A30&sdxt07=0&utm_source=dealalerts&utm_medium=em-i&utm_term=3650396%7Cma_and_v3_tw&utm_content=6938389&utm_campaign=4&p=125835883&src=da_si_v2_53114747#post125835883
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Last edited by Cheesecake36 August 12, 2019 at 04:11 PM.
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#14
Quote from thepenguin99
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In the past I would have considered Cyberpower to be inferior to APC. Not really sure how they compare these days.
I think they're honestly pretty head to head. Schneider replaced an entire old APC ups I had when I bought a new APC replacement battery (off Amazon) and it began leaking all over the device several weeks later. The UPS was close to a decade old, they gave me whatever was current top of the line 1500VA non-pro level device. Can't commend them highly enough for how they handled it - even shipped the thing next day air from across the country.
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#15
The bigger UPS units often go on sale around $110-120. Bought one @110, has survived & protected through 2 years of Florida's coastal storms - hasn't gone out yet. Seems a luxury until the power starts flickering, FAILING every 5 mins & Your work-station is the only one running..
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