UPS problem

[EndofEra]

Hey guys, can someone help me out with this. I have a 1000va ups rated for 600w that shuts down immediately sometimes when the power goes out if pc is under load (i.e. in game, rendering or stress testing).

Is this a sign of a faulty battery or a faulty ups?

my specs are:

Specs:

ryzen 5 2600 oc to 3.9ghz @ 1.3V

2x8gb 3200mhz

galax gtx 1660ti

asrock b450 steel legend

10 120mm fans

deepcool rgb 350 rgb strip

seasonic s12g 550w

 

P.S. my ups is already out of warranty and it is just around 2 years and it is an AWP AID 1000va ups

 

Thanks for the help and have a great day to everyone!

[LogicalDrm]

-> Moved to Power Supplies

[Guest]

3 hours ago, EndofEra said:

 

 

P.S. my ups is already out of warranty and it is just around 2 years and it is an AWP AID 1000va ups

So it always did this or just recently started doing this in its old age?

[Archer42]

10 hours ago, EndofEra said:

Hey guys, can someone help me out with this. I have a 1000va ups rated for 600w that shuts down immediately sometimes when the power goes out if pc is under load (i.e. in game, rendering or stress testing).

Is this a sign of a faulty battery or a faulty ups?

In very simplified way - some UPS have trouble handling load spikes which inevitably happen during switching process. It depends on UPS itself and PSU.

Weak battery can contribute to it, because as it ages internal resistance increases, which causes increased voltage drop under load.

Also dead battery would obviously cause behavior like this, and cheap UPS usually have no indication that battery is bad / weak.

 

If this was the case from the start you need new UPS. If it started happening after few years - may be batteries were simply "not great" to start with and now degraded enough to become a problem. Also replacing batteries there is often an option to get slightly higher capacity. Like 12v7.5Ah batteries have 12v9Ah equivalent which is physically the same and can be safely used in place of 12v7.5Ah. Same for 12v12Ah and 12v15Ah. Slightly higher capacity can help a bit, because voltage drop under the same load should be a bit lower...

 

Practically... I've seen 1500VA UPS (Chinese OEM sold by local company) fail to switch with the same load which 15 year old APC SU1000I (1000VA) handled just fine. As with everything - rated power does not indicate how good UPS is and does not guarantee it will work with every load...

[EndofEra]

On 3/7/2021 at 2:17 AM, jonnyGURU said:

So it always did this or just recently started doing this in its old age?

sorry for the very late reply had some personal stuff to attend to, to answer your question it just recently started

[EndofEra]

On 3/7/2021 at 10:24 AM, Archer42 said:

In very simplified way - some UPS have trouble handling load spikes which inevitably happen during switching process. It depends on UPS itself and PSU.

Weak battery can contribute to it, because as it ages internal resistance increases, which causes increased voltage drop under load.

Also dead battery would obviously cause behavior like this, and cheap UPS usually have no indication that battery is bad / weak.

 

If this was the case from the start you need new UPS. If it started happening after few years - may be batteries were simply "not great" to start with and now degraded enough to become a problem. Also replacing batteries there is often an option to get slightly higher capacity. Like 12v7.5Ah batteries have 12v9Ah equivalent which is physically the same and can be safely used in place of 12v7.5Ah. Same for 12v12Ah and 12v15Ah. Slightly higher capacity can help a bit, because voltage drop under the same load should be a bit lower...

 

Practically... I've seen 1500VA UPS (Chinese OEM sold by local company) fail to switch with the same load which 15 year old APC SU1000I (1000VA) handled just fine. As with everything - rated power does not indicate how good UPS is and does not guarantee it will work with every load...

afaik awp is an american brand (according to there site and the meaning of the AWP) anyway do you suggest that I try to replace the battery of my ups first since it just recently started.

for the battery I checked it already and it has a 12V9Ah battery inside