I have APC Smart UPS 1500VA. I had two AGS GX-165 batteries connected to it. There are 3 tube lights (40W), 2 fans and a WiFi router running on it. Thats it. Even with such small load, there were so many issues.
Now the problem I faced with 165AH batteries is that they take a lot of time to recharge, as in, we have load shedding after every 1 hour in summers. The batteries, when they got a little old started to give up very soon because they werent charging properly. Now I know that there can be a number of factors involved like a problem with UPS etc. We also have issue of low voltage in our area due to lesser transformers. But assuming my UPS is fine, should I get batteries of lower amps?
If I get batteries of amps greater or lesser than 165, do I need to get battery constant of my APC UPS recalibrated?