Hi can someone tell me the differences between APC 1500VA Back-UPS Pro Sinewave UPS Battery Backup & Surge Protector (BR1500MS) and Back-ups Pro 1500VA 230V Power Saving?
Why one is twice the price of other when they both appears to be same pretty much and both are listed on Amazon US.
Which one is overall better?
Which one is pure sine wave and support active PFC?
Do they both have dry batteries?
I mainly want to protect my gaming PC, will it protect my PC with 1000-1200W internal power supply because I don't think the actual load will be too much? I'm running Nvidia Geforece 970, 16GB RAM, i7 4770 not k though in future I'll like to upgrade to Volta line of GPUs and also use a LG 65'OLED.
What would be your recommendation even though only APC Power-Saving Back-UPS Pro 1500 BR1500GI is available in my country, which I believe is Amazon's second one. Will it be good?
Thanks in advance
Why one is twice the price of other when they both appears to be same pretty much and both are listed on Amazon US.
Which one is overall better?
Which one is pure sine wave and support active PFC?
Do they both have dry batteries?
I mainly want to protect my gaming PC, will it protect my PC with 1000-1200W internal power supply because I don't think the actual load will be too much? I'm running Nvidia Geforece 970, 16GB RAM, i7 4770 not k though in future I'll like to upgrade to Volta line of GPUs and also use a LG 65'OLED.
What would be your recommendation even though only APC Power-Saving Back-UPS Pro 1500 BR1500GI is available in my country, which I believe is Amazon's second one. Will it be good?
Thanks in advance
I planning to put a server on this ups (Europe, 230V):
My server has a relatively new energy saving power 700W power supply. I checked it with energy meter and it only consumes ~ 220W on average. Right now it is on a cheap 1500VA centralion ups which I know for a fact that cannot survive more than 10-15 minutes and when it depletes the batteries the charge time is more than 24 hours..
Here in the specs looking at the graph, APC claims that this UPS could power my server for 173 minutes, that is 2.8 hours. Also they claim that battery charge time is only 3 hours !
Can this be true? I never saw ups capable of bridging that time period. Somebody who actually owns one of this would be nice to comment.
Thanks!
Apc Smart Ups Malaysia
pluto73pluto73
2 Answers
Can this be true? I never saw ups capable of bridging that time period.
You have not seen a lot, right? It is unusual, but not unheard of.
My own data center is right now mostly shut down. Pretty much 16 machines out of 23 are down due to software upgrades. My UPS - a 20kva unit - tells me up-time is now nearly 8 hours. Under full load we talk of about half an hour capacity.
It is all and ONLY a factor of battery capacity and used load. It is UNUSUAL to have a UPS that handles large time frames, but that is mostly because it is cost inefficient. A UPS should normally handle small outages (hey, fuse went out and back in 30 seconds later) and then have enough reserve to handle the backup generators starting (or, like in our case, safely shutting down the HPC cluster until power is back). IF we would like to keep that running during longer outages, we would install a diesel or two - a LOT cheaper than handling tons of batteries. Our little monster right now has 300kg batteries attached.
But stating 'never seen' really is like 'I have not seen a lot'. Generally - especially if you leave small end user stuff -battery capacity is quite scalable.
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In your case you are going to put a much smaller computer to a UPS that is oversized. Yes, the result is a long runtime, much as we have it now.
And it also CAN load quite fast - because that is the normal use case. Noone wants to wait a week for the UPS to reload. That said, depending on load you may want to check your cabling - although even in your case, 1500VA is not really that much. We still talk small units.
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Its simple electronics, if your server only consumes X over 1 minutes but the UPS batteries contain 173X then yes it will run for that long. However be aware that 'average' consumption is only average for our own statistics, it still peaks high under load etc and must take PSU efficiency into account.
APC graphs and stats are usually pretty good to go by. I would also assume that you are expecting long windows of mains power loss (1 hour+).. Usually UPS's are deployed to protect against minor blips or the switchover period between mains and generator switchover.. Or allow equipment to be gracefully shutdown if mains power is lost suddenly.
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Battery calibration can be performed by software, network management card, or manually. On the newer units (SUA, SMT) software calibration has become more accurate so you can give it a try. On older SU models, it’s best to do the manual hardware calibration. If you’re not getting the run time you thought you should have with the software method, perform a manual calibration to get a more accurate run time calculation.
Some people only do software calibration and consider that good enough, others prefer to do a manual calibration as a tried and true way of getting exact run time numbers. Neither is really wrong, it’s a matter of preference.
Follow these steps to do a proper manual calibration on your APC UPS:
1. Battery must be at 100% capacity when the Runtime Calibration is initiated/started. (charge the UPS for 24hours prior)
2. The UPS must have 30-34% load on it during the calibration (Constant load, try: lamps, computers, monitors. Measure load % by PowerChute)
3. Disconnect the serial/USB comm cable from the UPS (you don’t want PowerChute to shut down equipment)
4. The battery must be discharged completely (unplug UPS from wall outlet, let the UPS to shut off completely due to a discharged battery).
5. Remove the attached load (ie – lights, computers)
6. Let the UPS charge for 8 hours while OFF (plug back into utility power, press OFF button when UPS turns ON)
7. Turn on UPS (run time should now be accurate)
2. The UPS must have 30-34% load on it during the calibration (Constant load, try: lamps, computers, monitors. Measure load % by PowerChute)
3. Disconnect the serial/USB comm cable from the UPS (you don’t want PowerChute to shut down equipment)
4. The battery must be discharged completely (unplug UPS from wall outlet, let the UPS to shut off completely due to a discharged battery).
5. Remove the attached load (ie – lights, computers)
6. Let the UPS charge for 8 hours while OFF (plug back into utility power, press OFF button when UPS turns ON)
7. Turn on UPS (run time should now be accurate)
If you’re confused about this process or stuck on one of the steps, email us at [email protected] or give us a call toll free at 866-311-1945.