UPS for home use, which one?

[rrinker]

 I've pretty much always used APC. Mostly toss out commercial units - tossed out often because the batteries need to be replaced and the company doesn't want to pay APC's price for SLA batteries. For home use, I have no qualms on just getting an equivalent battery from any number of suppliers at a fraction of APC's price. In the past, they never did anything that would tag the battery as a genuine one so the electronics never knew the difference.
 Though I did get one once from a customer - one of their remote offices returned it as non-working. They were just going to toss the whole thing, not even take the time to look at it (just a small model). I pulled around behind the building and when they 'tossed' it, it missed the dumpster and accidentally landed in my trunk. When I got home, I opened the front cover - and clearly the people at the remote office failed to read what was on the BRIGHT YELLOW card stuck to the front "Unit is shipped with battery disconnected". Yup, just plugged the battery cable in, put the cover back on, and it was a brand new unit, used it right up until the battery no longer held a charge, a few years later.

[wraper]

APC is a shittiest shit IMHO. Yesterday replaced battery in Back UPS 950. What a joke, 950VA rated UPS has a single 12V 7.2Ah battery  . Battery compartment had space for 2, but second battery cannot be fit without snapping a piece of plastic used to hold single battery in place. And to replace it, you need to completely take it apart, including opening several plastic hooks which simply refuse to open . Is it UPS or smartphone? Even more expensive Smart UPS often overcharge batteries so they swell. Not to say they use very cheap components even in UPS worth several k$.

Back UPS 950 Spec:
Run time for load 480W 1m
yay 

[Wuerstchenhund]

I agree, APC is crap. No other big name vendor with so many problems and issues as APC does. But vendors like to sell them because everyone knows the brand and when things go pear shaped then that's not their problem (and businesses just replace the UPS with a new one).

I wouldn't touch APC with a barge pole. Especially not when there are so many better options out there.

[SiliconWizard]

I have an Eaton UPS. (Ellipse Eco 1200)
Works well overall, pretty decent run time on battery for my workstation.

The battery failed after a few years, which was OK. It was easy to replace.
This UPS is definitely NOT flawless though. When the battery is fine, all works great. But when the battery started to fail, the UPS absolutely NEVER gave me any indication of that in any form - even the estimated run time was still practically the same as when new. I only figured the battery was failing because I  got a couple power cuts and the UPS was apparently not doing its job anymore. There was absolutely no useful diagnostic.

I don't know if it's common or if some UPSs have decent battery health monitoring...

[MarkL]

I also got tired of APC UPSes eating batteries.  I had four of them at one point (sorry, I don't recall the model).

I consolidated all my UPS loads into one place and wired up a good quality inverter/charger where I can control the charge voltage and current to match the battery specs.  The battery temperature is also monitored for charging compensation, but it doesn't vary much in its present location.

12V @ 35Ah electric wheelchair batteries are easy to get and have a good price per energy.  I used four UPG UB12350 for 24V @ 70Ah into a Samlex EVO-2224 2kW inverter/charger.

We have power failures often, at least once a month, and commonly in the range of a few minutes to several hours.  The batteries are around 60-70% of capacity after 7 years of service.  I'm still on my first set.  I never expected them to last this long and I attribute it to good charging regimen.

[helius]

Is there any reason to be wary of a UPS that keeps the SLA batteries on their side? Do gel type batteries not have a vent on the top?

[SeanB]

Nothing bad about a gel cell on it's side, the gel does not move. however the battery will be cooked in short order, because it is siting in general right next to a really hot running transformer, leading to both the terminal voltage drooping as it heats up, and thus the battery suffers from the double whammy of being both overcharged and also being cooked nicely at around 60-70C.

I solved that in my APC 750 XL UPS by removing the 2 extremely well cooked 18Ah SLA batteries inside it, and taking the connector off, replacing it with 2 soldered on terminals, with a used 18000uF 63V electrolytic acting as both local decoupling and something to hold the wires in place. Then used the rear connector to attach 2 65Ah deep cycle wet plate batteries to it. solves the problem of low capacity of the battery, and also keeps them at ambient room temperature, so they will last longer. Currently sitting at 27.7V on the battery, and as I check the water every few months, and do have an ion exchange column around to get pure water ( though the tap water here is soft enough to do straight out of the tap, but the ion exchange unit was free, plus I have a lot of spare media for it) to top up the cells when needed. UPS was free, scrapped because the batteries were stone dead, so it would not even power on.

If needs be I will use one of the other UPS rack mount units I have, though there I will need to get together a 36V or 48V battery pack for them, the APC was used because the new batteries were the most expensive part, and this only needed 2 to operate. Run time is over 2 hours, so will do for the typical Eskom load shedding when it occurs, and apcaccess worked out of the box with it on connecting the USB cable to it.

[Marck]

This guy on youtube has a few videos where he tinkers with an APC smart ups 2200. Moving to external batteries and adding a couple of fans to get the unit to supply a continuous 1500w. His methods are a bit back yard dodgy but simple enough.  I am not sure I would use his pool noodle fan mounts and airflow modification but it gets the job done.

2 or 3 videos in total and just enough information to get someone like me to burn their house down😂

https://youtu.be/YEcjvWFDaGk

[Wuerstchenhund]

I have an Eaton UPS. (Ellipse Eco 1200)
Works well overall, pretty decent run time on battery for my workstation.

The battery failed after a few years, which was OK. It was easy to replace.
This UPS is definitely NOT flawless though. When the battery is fine, all works great. But when the battery started to fail, the UPS absolutely NEVER gave me any indication of that in any form - even the estimated run time was still practically the same as when new. I only figured the battery was failing because I  got a couple power cuts and the UPS was apparently not doing its job anymore. There was absolutely no useful diagnostic.

I don't know if it's common or if some UPSs have decent battery health monitoring...

It's difficult to monitor battery capacity in an UPS. It's not like with other devices with batteries where the charging controller can watch for changes in capacity during the regular charge cycles, as in an UPS the batteries are pretty much always fully charged up and discharge only when there's a power outage (which is usually very rare).

This is why it's recommend to have regular maintenance periods (i.e. every 6 - 12 months) where a power outage is triggered and the UPS is allowed to run down (not completely, only to a certain extend) under load to check if the batteries are still at full capacity. If that UPS feeds a critical server then there should be another, fully charged UPS connected to the other power supply so that that a potential power outage shortly after the test (when the tested UPS is still charging up) doesn't catch you out. 

Some UPSes have functionality to perform these tests automatically.

[Wuerstchenhund]

however the battery will be cooked in short order, because it is siting in general right next to a really hot running transformer, leading to both the terminal voltage drooping as it heats up, and thus the battery suffers from the double whammy of being both overcharged and also being cooked nicely at around 60-70C.

APC, right? Because every other brand name UPS I've seen has a physical barrier between batteries and the electronics/transformer sections, with separate air flow for both, to avoid exactly that.

[rrinker]

 Their big one do, the small ones, not so much. But I haven't used any of the mid-size non-rack ones recently - the older ones I had, all had a solid barrier between the battery compartment and the hot stuff in the upper half of the housing. And the batteries were always removable, snap off the plastic front, 2 screws in a metal plate to hinge it off, and slide out the batteries (sometimes they stick them to the base metal plate with double sided tape, or else they are taped to each other if there is more than one, to keep the stress off the jumper wire between the two.

 I wouldn't doubt they have since cheapened the design like most everyone. In the past I've had a 500, a 600, and a 1500, all of those had at least 2 batteries. Those were commercial grade units. I did get a couple  of the oversize powerstrip type super cheap, and those were complete junk, one tiny battery could not supply enough power at the rated load to keep anything going even long enough to shut down cleanly.

[fordem]

I have an Eaton UPS. (Ellipse Eco 1200)
Works well overall, pretty decent run time on battery for my workstation.

The battery failed after a few years, which was OK. It was easy to replace.
This UPS is definitely NOT flawless though. When the battery is fine, all works great. But when the battery started to fail, the UPS absolutely NEVER gave me any indication of that in any form - even the estimated run time was still practically the same as when new. I only figured the battery was failing because I  got a couple power cuts and the UPS was apparently not doing its job anymore. There was absolutely no useful diagnostic.

I don't know if it's common or if some UPSs have decent battery health monitoring...

It's difficult to monitor battery capacity in an UPS. It's not like with other devices with batteries where the charging controller can watch for changes in capacity during the regular charge cycles, as in an UPS the batteries are pretty much always fully charged up and discharge only when there's a power outage (which is usually very rare).

This is why it's recommend to have regular maintenance periods (i.e. every 6 - 12 months) where a power outage is triggered and the UPS is allowed to run down (not completely, only to a certain extend) under load to check if the batteries are still at full capacity. If that UPS feeds a critical server then there should be another, fully charged UPS connected to the other power supply so that that a potential power outage shortly after the test (when the tested UPS is still charging up) doesn't catch you out. 

Some UPSes have functionality to perform these tests automatically.

I endorse much of what is said here - I just want to point out that the "UPS bashing" going on appears to be based on experience with the "bottom rung" standby units (APC BackUPS, Eaton Eclipse Eco), the so called "battery in a box" units - these are built to a price and you do get what you pay for, or rather, you don't get what you didn't pay for, which is the feature set on the higher priced units.

I've got three APCs here, an SU750 built in 2006, an RM1400 built in 2003, and a 900XL that is so old that PowerChute won't talk to it - all three have battery monitoring, will self test every 7 days, and will let you know if the batteries fail that test.

None of my APCs have the batteries in the same "compartment" as the electronics, and for what it's worth - the internal temps are between 37 & 39 *C (yes I have SNMP cards installed) and that's in the Caribbean, with no air conditioning, and running 24/7.

As with any other product, quality costs money, if you want to buy the "throw-away" units, it's your choice.

[ogden]

Nothing bad about a gel cell on it's side, the gel does not move. however the battery will be cooked in short order, because it is siting in general right next to a really hot running transformer, leading to both the terminal voltage drooping as it heats up, and thus the battery suffers from the double whammy of being both overcharged and also being cooked nicely at around 60-70C.

Hot (60-70 oC) running tranformer while in battery charge/trickle mode? - BS. Unless you are talking about falty UPS

[Mechatrommer]

iirc my cheap decommisioned Contronetix X800 has battery test function by briefly press the power (soft) button, to turn off is long press, that was the annoying thing. currently in service is the KOSS Centron 1200VA (both local brand (no or not recognized brand)), its hard button, so switching off is instant i like it but, no battery test button anymore, battery test is using software through LAN port + some other features like auto turning off PC etc, but i wont bother to setup the LAN and the SW i dont care and dont need those, i only need to save my work and then hibernate during power outage. i seldomly leave my PC unattended except if i want to torrent GBs of data, but that was when my ISP is slow, now it only took few minutes, otherwise torrent will auto resume anyway. running heavy simulation is like once in every 10 years so its moot, good simulator should auto resume as well, so does firefox, thumbs up. so battery test function not only for expensive brand model, its also available in cheap model you just have to look for it during window shopping. since i dont have proper test battery functionality, i do as Wuerstchenhund said, simulate power outage by pulling the UPS plug, if PC survive within 5 minutes, battery is good. ymmv.

ps: and my previous UPSes are so compact that everything sit next to each other, so transformer heat will spread to anything inside including battery and pcb, but i havent experienced a single cooked battery. modding them to use external 40-60AH car battery is easy anyway. my current KOSS i have to put it on its side since that how the battery inside will sit up right, i experienced premature battery dead before this, but its probably due to me purchase the expired battery from a bad shop, good battery should be able to lay on its side, but this time i make sure they are up right, just in case. and if your UPS has 2 batteries, i think its advisable to make sure they are closely matched in new condition. that maybe one of the reason my premature dead battery experience, only 1 battery went bad, the other one still okaish, but i replaced both of them with fully charged new batteries, now its been a while everything looking good.

[fordem]

<SNIP>if your UPS has 2 batteries, i think its advisable to make sure they are closely matched in new condition. that maybe one of the reason my premature dead battery experience, only 1 battery went bad, the other one still okaish, but i replaced both of them with fully charged new batteries, now its been a while everything looking good.

I'd say there's no maybe about it.

If there was ever a golden rule about battery usage, any type of batteries, any type of usage, it is to never mix old & new, you'll even see this warning on children's toys.

[Wuerstchenhund]

I just want to point out that the "UPS bashing" going on appears to be based on experience with the "bottom rung" standby units

At least in my case it's with Line-interactive and online variants in the 1KVa - >100kVA class (we don't buy anything under 1kVA or that is just a standby device).

And as I said, I wouldn't touch APC with a barge pole.

[nctnico]

I agree, APC is crap. No other big name vendor with so many problems and issues as APC does. But vendors like to sell them because everyone knows the brand and when things go pear shaped then that's not their problem (and businesses just replace the UPS with a new one).

I wouldn't touch APC with a barge pole. Especially not when there are so many better options out there.

The biggest problem with APC is their charging circuitry. Fix that and it will be fine. From the APC UPSses I have taken apart I know the electronics are pretty simple & straightforward. A long time ago I had a Powerware UPS as well but that crapped out and because it used a custom IGBT module it was unrepairable.

Still UPSses require maintenance and replacing batteries. I stopped using UPSses a long time ago because they caused more interruptions due to maintenance than actual grid outages.

[madires]

To be fair we should differentiate between era and model family when talking about APC. There's pre-2007, i.e. before Schneider Electric took over. BackUPS was the inexpensive standard UPS with a short run time, and SmartUPS was the line-interactive variant which was (and still is) pretty reliable. besides the high float voltage (but you can adjust it). After 2007 things changed. The clear separation between BackUPS and SmartUPS started to vanish. Some BackUPSs became lower end SmartUPSs. Very annoying when you're used to "SmartUPS = line-intercative". In 2009 APC dropped the the old control protocol for their new proprietary Microlink but they still used the old one for the display unit. At some time they started to ship their UPSs with Kung Long batteries. Same for the replacement battery packs. IIRC, in 2013 APC added the MODBUS protocol to support 3rd vendor software after many customers complained about Microlink.

[SiliconWizard]

I have an Eaton UPS. (Ellipse Eco 1200)
Works well overall, pretty decent run time on battery for my workstation.

The battery failed after a few years, which was OK. It was easy to replace.
This UPS is definitely NOT flawless though. When the battery is fine, all works great. But when the battery started to fail, the UPS absolutely NEVER gave me any indication of that in any form - even the estimated run time was still practically the same as when new. I only figured the battery was failing because I  got a couple power cuts and the UPS was apparently not doing its job anymore. There was absolutely no useful diagnostic.

I don't know if it's common or if some UPSs have decent battery health monitoring...

It's difficult to monitor battery capacity in an UPS. It's not like with other devices with batteries where the charging controller can watch for changes in capacity during the regular charge cycles, as in an UPS the batteries are pretty much always fully charged up and discharge only when there's a power outage (which is usually very rare).

Yes, especially with lead-acid batteries. I know. And I've owned UPSs in the past (in the same price range) which had an auto-test feature. I was surprised this one didn't. It's definitely home gear, but it's not the cheapest crap you can buy either.

Let's remind some people in this thread who recommend using a professional UPS instead that the OP's question was about HOME USE, so it was pretty natural that people would reply with their experience with entry-level UPSs.

I also agree with you that if the UPS doesn't have an auto-test, you can actually do that manually. What we're discussing here though is report experience with UPSs targetted at home use, and from a commercial stand point, I'm surprised, and do NOT agree with manufacturers selling gear that doesn't help the user with the battery monitoring part, as a typical home user is a lot less likely to do regular maintenance on their own than a professional user. Anyway, just some experience report. Definitely one thing you have to be wary of.

[maginnovision]

For my home UPS I use two APC 1500VA back-ups pro one with the second battery(BR24BPG) which gives a little over 3 hours runtime for my PC under normal load(gaming it's much lower). It's been running well for years now and they are line-interactive which can be annoying but considering the relaxed limits before turn on I'd say it's ok. The one without the additional battery has been going for much longer and batteries are still good but it's only used for lower power test equipment which is always on.

[BradC]

I have a pair of SmartUPS.

A 2006 vintage SUA3000 and a 2000 SU2200. Both have the standard 17Ah internal batteries and Anderson connectors fitted with 55Ah external batteries.

The 2200 has been modified to run the fan at low speed continuously like the 3000 does out of the box. Both have been set up to charge the batteries to ~2.25v/cell as that seems to help battery life.

The 2200 burned a sensing transformer last year (it's kept outdoors and I think moisture got to it), and when I replaced that I gave it a birthday (new electros, movs and fan).

They are relatively lightly loaded, so I get ~450 minutes from the 3000 and between 500 & 900 minutes from the 2200 (depending if the screens are on my desktop or they are in dpms sleep).

I had an SU1400 rack mount in my office but the (very quiet) buzz from the transformers drove me nuts, so I moved it outside and then replaced it with the SU2200. It's now the "spare".

I also have a nice MGE (pre APC "merger") and some Liebert units, but I have circuit diagrams for the APCs and they are robust, quiet and easy to work on.

I've seen a bit of concentrated hate for the APC here, but (at least prior to the Schneider buyout) they were designed as a robust and affordable UPS and they filled that role nicely. As a home UPS for anyone with an electronics bent, they are easy to work on, there is plenty of info available on the net and if you are lightly loading them can be made almost totally silent. Plus there is plenty of software support.

I avoid the BackUPS although my first APC UPS was a BackUPS CS650. They are a bit agricultural for my taste, but you have to start somewhere.