APC Back-UPS 1100VA with AVR

[halfmoonforever]

My old UPS freaks out whenever the power spikes/goes off and turns off my PC instead (possibly faulty AVR, batteries seem fine on normal tests)

Is this a good deal/UPS?

http://www.takealot.com/apc-back-ups-1100va-with-avr-for-south-africa/PLID34187700

 

[sajunky]

Good UPS of course, overpriced, but it is APC.

Do you still have at least 2s backup time, so you can meassure battery voltage? It should be at least 10.6 V (for 12V battery), otherwise UPS will trip off.

To test battery, you have to fully discharge battery outside UPS with 0.1C load, then charge it with a maximum allowed current (for 12V 7AH batteries it is about 2.6A). It is frequently called a "maximum initial current". It is important for VRLA batteries, but it might help AGM batteries too. UPS charging circuit do not supply such current. Discharging/charging time will also give some indication to the battery condition. Then put battery back to UPS, it might extend battery life for the next few years.

If you want to dispose UPS, pls. let me know.

 

[DrJohnZoidberg]

My old UPS freaks out whenever the power spikes/goes off and turns off my PC instead (possibly faulty AVR, batteries seem fine on normal tests)

Is this a good deal/UPS?

http://www.takealot.com/apc-back-ups-1100va-with-avr-for-south-africa/PLID34187700

That UPS has no monitoring port, I wouldn't suggest it if you want automation capabilities.

I'd suggest this one, which is in the same price range: http://www.wootware.co.za/apc-bx950ui-back-ups-480-watts-950-va.html

How much equipment you connecting to it?

 

[halfmoonforever]

Thanks. I'm connecting my PC to it, that's it. Running a 750w power supply with R9 Nano, 32gb RAM and 5 x 1 TB drives. At the time of the "trip" it was idle, so I'm assuming not much power was pulled at all

 

[sajunky]

I suggest the first one. It has no monitoring, but two batteries means that stress on the battery during backup mode is much smaller and batteries will last longer.