APC Back-UPS BX1100C-IN 1100VA / 660W, 230V, UPS System, An ideal Power Backup & Protection for Home Office, Desktop PC & Home Electronics

Excellent UPS for Home Office and PC Setup I purchased the APC BX1100I-IN Offline UPS, and so far I'm very happy with it. The packaging was secure, and the product arrived in perfect condition. The UPS is easy to install and started working immediately. It provides seamless backup during power cuts without interrupting my PC, monitor, and internet router. The switching time is fast, and I haven't experienced any unexpected shutdowns. The build quality feels solid, and the unit runs quietly during normal operation. I also appreciate the genuine product quality and the prompt delivery. It gives me peace of mind while working or gaming, especially during unexpected power outages. Overall, this is a reliable UPS from APC, and I would definitely recommend it to anyone looking for a dependable backup solution for a desktop PC or home office setup. Good customer support from Aarti Maurya and help me in getting timely delivery Pros: Fast power backup Easy to install Good build quality Reliable performance Trusted APC brand

This UPS does fail my PC sometimes when load on my GPU and CPU is high and Mains electricity fails again and again within seconds.That is a rare occurrence. It fails with UPS being "overloaded" when electricity fails. Now before you guys start telling me I should go for a larger UPS, the recommended PSU for my combo of CPU and GPU (ryzen3500 and GTX 1060) is less than 450 watts. And adding maximum losses from 80PLUS PSU, it still does not ask for more than 540 watts. UPS is 660 watts. As a matter of fact I can Cold Start my UPS when Mains electricity is OFF and I can load my PC maximally (both GPU and CPU) for a few minutes on battery backup without problem.So too much load is not the problem. It is momentary overload when electricity fails . I will explain it in a bit more detail ahead. Anyway I will not return this unit because this is the best I can get for this amount of money from a big brand. Now let me explain to the extent of my understanding why it sometimes fails in rare circumstances. It is most basic model of UPS from APC. Anything above it from APC costs considerably more both in initial purchase and later in Battery replacement costs. Today in era of APFC PSUs, Sine-wave UPS are preferred, but sine-wave UPS are basically not available in India or are priced too highly. So I will settle for this. Even APC itself suggests Sine-wave UPS for APFC PSUs, and if you have a decent PC bought in last 10 years it most probably has APFC PSU. Now for those who don't know about "Transfer Time", most of the UPS in market do not provide power backup upon Mains electricity failure "INSTANTLY". There is a Tiny time delay in switching on battery power of UPS. This Delay is "Transfer time." PSUs are supposed to handle this "Transfer time" to extent of about 15ms. PSUs have some energy in their capacitors. So Max of 12ms from this UPS should be acceptable. But not all PSUs are good enough. Even branded PSUs of huge brands fall short on this parameter by a little bit. So it is always better for UPS transfer time to be lower. If PSUs capaitor are unable to handle "Transfer time", PC will restart in most cases. This does not happen for me. Also during this delay of "Transfer time" capacitors in PSU gets discharged, causing a larger than normal current to charge capacitors when power is resumed after the tiny delay. This current is Inrush current and can cause UPS to shutdown because of overload. This probably is the case for me. Less the transfer time, less the capacitor is discharged and less is the Inrush current. So , again, it is always better for UPS transfer time to be lower. Many other brands are offering Transfer time in 4-8ms in this price range. But they are less reputed than APC, so I will stick with APC. But I expect even basic model from brand like APC to have better "Transfer time". It is a critical parameter of UPS. In the era of APFC PSUs all UPS from a big brand must be Sine wave. But alas that is not the case. If you need 100 percent reliability you can sure go for expensive models with Less "Transfer Time" or preferably Less "Transfer Time" and Sine-wave. If your work is really important and money is no limit, go for "Online topology" UPS which have ZERO "Transfer time", but will need more battery costs, and even consume a bit more energy.

Excellent product. Prompt delivery. The product is working well and is able to take the load of 3 wifi routers, onr 55"led tv and a ps4 well and worked for 10 min (we didnt check beyond it). Very satisfied.

This is a nice UPS to have which can take in load of 2 computers easily and gives a good battery life. However, it seems I have received a piece with a fault which makes the UPS turn off automatically when it competes it charging! This happens at least once a month. This happens even when there is a PC running on it and the "battery saver" option is turned off. This is totally not expected from a premium product of a company known for good quality UPS. This defeats the entire purpose of having a UPS in first place. Even low end UPS products don't have such random issues that I have had with APC for the last two UPS purchases. Update: Since this was under warranty, I contacted APC and got technician visit. But since the problem is not demonstrable, they asked to make video of the issue once it occurs and again raise complaint. So, the issue occurred again a couple of times and made a video of it and contacted APC again. Got technician visit again and this time got the main circuit board replaced just today. Will update if this issue occurs again on replacement. Update2: Since replacement the UPS is functioning well but now it will beep with 2 sec delay 10-15 times in middle of the night almost 5 days in a week waking up everyone. The beep sequence means that temperature is high and so it beeps with fans running which is absurd. So this refurbished replacement main board has issue with some temp sensor which triggers only at night. Very bad quality control there APC. Next UPS is going to be non APC brand. Update3: Before buying another UPS, I made a last attempt with APC. Created a video of the issue and raised another complaint. Finally, APC replaced the complete unit. Just hoping that this replacement unit works as expected. Update4: The replacement UPS does not beep like the previous one but it will start fan at night between 2am to 6am almost 2-3 days per week creating noise that is sufficient to get irritated at night when things are calm. Once the fan starts it will keep on running for 3-4 hours even if cooling is not needed since its night when its already cool and the air coming from the unit is also chilly. This does not happen any time in the day when temperatures are above 30C. So this seems to be a design issue with this product. I would not recommend anyone to buy this especially if you are going to put this in your bedroom.

[Purchased 21/02/2026, Updated 06/06/2026]I got the Back-UPS 1100 (BX1100C-IN 1100VA / 660W) one. First run, it took 7 hours to charge (first charge asks for 10 hours). I charged it while having my laptop, monitor connected. There are 4+1 sockets, a battery saver(which prolongs battery health but gives less backup time). a 3pin (6A) Plug for input power supply and 5 3pin 6A sockets for output power supply. The manual explicitly mentions not to use a surge protector/extension cord on any of the 5 sockets it has in the back. Yet on the first 4 hours I used a surge protector cord. So I had: a) 27W Monitor b) 16W phone charger c) 35W printer , up three on the surge p cord, socket 1 and d) 150W laptop (battery nulled) on socket 2 There was a hiccup with Monitor going half dark for 10th of a sec but nothing like previous when if just used to go black. It's good for what it says and does. Update1: There was massive powercut in my city and the fridge needed to be run for an hour so I thought let's try this UPS on it. it's a Samung 190L fridge, power rating 65W-90W. When you do a cold start then the UPS beeps twice in the beginning and then one beep every minute. It ran for 55 mins, then it started beeping every second until the 58th minute and 47 seconds after which it went off after beeping continuously for about 4-5 seconds. So, total runtime was 58 mins and 47 seconds. Which is really good for me. I'll try next with my laptop + monitor setup. I will update the review in like 7 days. [UPDATE] Here's the update after 1 year 4 months. Scenario: Power Cut, Battery Saver off Hardware connected: 1. 150W charger (laptop), with 38 tabs open on Firefox and Chrome combined, Music playing in the background via YT. Expected load: 50-100W 2. LG Ultragear 27W Monitor, expected Load: full 27W, no standby Total load (supposed): 130W It ran for 46 mins 10 seconds and started beeping every second until 46 mins 49 seconds where it went off which long beep of 10-15 seconds then I switched on the power (wall socket). 45+ mins is too good after 1 year of usage. Note: This might be 3rd or 4th time I drained it completely. I generally use the UPS as a failover for my laptop which doesn't have a battery connected to it anymore. On my inverter (normal mode) it sometimes restarted my laptop or gave BSOD due to Kernel Power 41 event that's why I went with this UPS. it's too good for its price.