From last 6 months,in case of load shading,my ups in giving back up for only couple of seconde.for that reason,i charged my ups for 6 days continuously,still i am facing the same,waht can i do????how to charge it??
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In some cases you need to remove all load from the UPS and let it charge up for a few hours in the off position before they will restart. It is also possible that the UPS was damged when the power failed. In that case, check your warranty as you might be able to get the unit replaced.
The main reason for not giving backup is improper charging or insufficient charging.
Or if the UPS is about 18-20 months old, the battery is unable to give backup.
or these are not the cases, the wires inside the ups, above the battery ,connected to the +ve and -ve ports on the above or side of battery are not properly connected or are loosen.
try to tighten them with yourself with a plier or goto a shop for a better result.
Hope this will help.
Thanks for using Fixya.
There could a couple of problems that would be the reason that the UPS is not able to power your equipment.
1. You have exceeded the output limits of the UPS. If the power demand from all the devices exceed the UPS' capacity. The model that you indicate should be able to power a total of 1000 watt load for about a few minutes. If should be able to power your computer, monitor, modems/routers easily, but if you have a laser printer attached, it will not be able to sustain the demands of the printer. Try removing any heavy loads like printers and see if this will work.
2. The battery in the UPS needs to be replaced. The battery in a UPS is only good for a few years. After a while it needs to be replaced because after a while it is not able to supply the needs of the UPS. If the battery is more than 2-3 years old it should be replaced.
I'm guessing that during the power outage, the ups battery completely discharged. Now it will take about 14-15hrs to recharge it.It will not support any devices until it is fully charged. Remove all load devices and let the battery restore to full charge before re-connecting the devices. If the battery does not recover, it needs to be replaced.
The reason for this is that the UPS, is unable to efficiently charge those BIG batteries, you see they generally only charge at a low rate, anyway, of say 10% - 15% capacity, of the-battery-usually-charged. Now with these BIG 40 Amperes by 2, well, there simply isn't enough "Juice" to charge them up... (Oh it might do in a month or so)... from that UPS's Charging Circuit. You will most likely have to rig up some other higher rate charger for those BIG batteries. OR modify the charging circuit IN the UPS. They need to be charged at about 1 Amp or maybe more. See it is simply Charge over Time... 40 amps at 1 Amp will take 40 hours.. 40A at 2A = 20H & so on. If only 1/2 flat 2A over 10hours.
HEY !! it's under warranty. I had one of these freak out on me in much the same way once in a while. I did the online help on APC's website. STAND YOUR GROUND if you don't get the answer you want. I held strong even after the "tech" said repeatedly that it was a building wiring fault, which it's not, and harassed him into exchanging it for a new one. Good luck