No wonder APC uses its batteries in so many small-footprint UPS models.
In a constant-power discharge scenario, in which current rises as battery voltage drops, things would get much worse for the PowerSonic unit after the six-minute mark.
This isnt possible from the actual UPS unit itself so to disable the audible warning you have to venture into APC PowerPath software which connects to the Smart UPS 750. .Replace the 24V cooling fan, pes 2014 crack patch 2.0 and your problem is solved.Upon inspection there was a red light on the front indicating that the battery in the UPS was in the throes of failing. .EBay sellers from China stock this part and it costs only.50 shipped to the USA.This fan cools the regulators just behind the fan.I would never give them the satisfaction of getting there defective product back, so they can factory refurbish, and re-sell it in there satellite store for full price.The PowerSonic unit drops completely dead near the 12-minute mark, while the BBB unit runs out of steam at 15 minutes.Search for "DC Cooling Fan 9 Blade 5V 12V 24V 40mm x40mmx10mm NEW at check out specify 24v fan, as they sell 5v, 12v, and 24v units in the same auction.Here, I aggregate CSB's and BBB's 15-minutes discharge ratings and paste part of PowerSonic's graph, since the company does not provide tables.So how to turn this audible warning off? .Both times i fixed doing these steps.By entering the Device Properties, checking the Show advanced items and then selecting Power Parameters you will see a setting entitled Audible Warning. .Turn off the unit - Flip over the unit - Open the battery-cap and turn the power on - Green Light is flashing - Try Now (with the green light flashing) to disconnect the battery.You are here: Home general / APC Smart UPS How to disable the audible warning.It kills me that APC will not tell you this, only to go do a trade up, which when you go to do the trade up, they give you maybe.00 for your unit, ripoff!I have found my APC Smart UPS 750 to be a reliable little unit with it sitting under my desk successfully protecting my servers from any spikes, brown-outs or poor power quality. .I could not find specifications for my Solex SB1272, so I went hunting for the cheapest battery I could find as a plausible worst-case stand-in.As well as on this site, you can find him.You can try a shot of Radio Shack tuner cleaner in the space between the fan boday and the fan blade, (don't get carried away, just a squirt or two) to maybe get a few more days, weeks from it, while you wait for the.Now it should be ON with the Empty battery light on (Red light) - Connect again the battery as.I run an APC Smart UPS 750 in my home lab environment and have been doing so for a number of years now. .