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Thoughts on UPS needs?

09-14-2015, 08:57 AM
Hey Guys,

I recently bought a BenQ W1070, and I'm absolutely in love with it, but within days of using the thing, I had a short power outage at my house. (First one in years I might add.)

The projector did not like being shut off without going through the cool-down phase, and when I attempted to turn it back on, it gave me a warning that the bulb was damaged. BenQ support told me it was merely a protection cycle, that my hardware was likely not damaged, and if I waited a little while that it would be fine. Well, thankfully it did fire back up and I've run it for a solid week now with no further issues, but this got me a bit worried...

I've been searching around on this topic for days now and I am just seeing SO many different opinions on whether a UPS is even necessary, and then among the people who say it is, what type of UPS (sinewave versus not) is proper for a projector. My head is just swimming now, so I was hoping to get some advice from the HDF on this.

Do I really need to worry about a UPS, or should I just buy a back-up bulb instead? If I do buy a UPS, do I really have to have one of these "Pure Sinewave" units some of the high-end HT guys are saying to buy?

The unit claims to max out at 353 watts during use, I won't be hooking anything else to the UPS, and I probably only need 1-2 minutes of runtime on the battery. So... Is 500 watts enough? Do I actually need to shell out hundreds of dollars for a Sinewave UPS for this, or will a run of the mill $60 UPS be ok?

I mean, the projector only costs $700, so spending hundreds of dollars on something to protect it seems like insane overkill...

09-14-2015, 10:26 AM
The cost of a UPS depends on what your trying to run and for how long.

So cheap ones will work but may not run the unit as long as you may need it to, I use UPS systems from Triplite or APC as they stand up to their products.

A true sinewave UPS will cost you a bit more but if your just using it to shut down during a power failure then don't spend the extra cash.

Look at some from Best Buy, Tigerdirect or Staples, they have good ones in the $100 to $150 dollar range that will protect your equipment and give you the shut down time you need

09-14-2015, 12:29 PM
Awesome, thanks for the input. This is largely what I figured, but I see so much disagreement on this topic around.

Some people claim that even attaching a projector to a non-sinewave UPS runs you the risk of damage while it is just operating normally and not even drawing from the battery. I'm surely no expert, but I assumed it would just draw normal power unless it went "offline" and then drew from the UPS's battery. So, I don't see how you could damage anything just connecting through it...

Regardless though, I'm just going to buy a low-end APC 650va UPS then. The APC site claims this will run a 353watt piece of hardware for four minutes; that's double the length I need to shut down the projector safely. And this one's only $68 on the Amazon:


Thanks Again.

09-14-2015, 02:57 PM
I use UPS systems with external battery packs, I can watch TV when the powers out for days, the main system has two battery banks, if one gets low I can switch over to the other (it will do this automatically also) and run a set of jumpers from the truck to recharge them.

We loose power up here very often (I'm out in the boonies) one time I was without power for 4 days, the generator runs the fridge and well and several lights, the UPS runs the rest of my stuff, it's a 5000 watt setup with special wiring I ran when I built my house.

So if you want TV during that big game and it's stormy out think of one with longer run time, the more watts the longer it will run, also the more it will cost.

The only reason that some like the pure sine-wave units is that they are cleaner and don't affect the audio performance of the high end stereo equipment, the low cost ones can produce a buzz.

If it's meant for a PC it will run a TV just fine without problems..

I use the Triplite brand as they have attached equipment insurance, (once registered with them)(and it looks like the APC one you posted does also) this means that if something gets through their equipment and takes out the stuff attached to it, you will get reimbursed for the damage.

09-15-2015, 08:47 AM
Agree with the previous posters. My UPS has saved me on several occasions over about seven years. Don't forget that you will still need to turn your projector off when you lose power because it does not see the loss of power since its connected to a UPS.

09-18-2015, 10:17 AM
Thanks again guys. I ended up going for a slightly more robust model with an LCD display and whatnot. (Simulated sine-wave)

It just seemed kinda dumb to spend $70 on a 650va model with non-replaceable batteries, when for another $40 I could get one at 1000va (with much higher ratings) that should last a whole lot more years.

So far I'm very pleased with it. It looks nice, the beeping when it loses power isn't nearly as obnoxious as other UPSs I've had, and it gives a dang TON of information on the display.

I haven't tried actually yanking the cord out of the wall while the projector was running (heh, and likely never will), but the unit's display of the load claims that the projector should be able to run for 10 minutes on the battery, which is about 8 more then I need to safely shut it down.

So, great! $100 well spent, just for the peace of mind alone.

09-18-2015, 01:30 PM
Two thoughts, the battery will probably be the first thing to go. Mine lasted about eight years and if you don't pull the plug, you'll never know for sure if it's going to work. ;)