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APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1
APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1
APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1
APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1
APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1
APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1
APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1
APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1
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Posted 4 days ago

APC Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1

£107.99
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  • Apc Back-UPS essential series provides battery backup and surge Protection ideal for your home and home office
  • 8 total outlets: 6 battery backup with surge protection and 2 Surge Protection only
  • 2 x USB Charging ports: fast speed charging, type A and C for smartphones and tablets
  • Dataline Surge Protection Safeguards your equipment and valuable files from “back door” surges traveling along data lines
  • Content of delivery: back UPS BE850G2-UK, user manual
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  1. Grrrrrrrrrrr's avatar
    Just some technical details on this, if you are interested:
    It has a 9AH 12v VRLA (lead acid, sealed) battery,52797432-T8w6a.jpg
    That's the run time graph - so you can see that at full load (around 500W), it is going to run for less than 3 minutes.
    That's with a brand new, fully charged, battery in peak condition. Expect about a minute in practice.

    The inverter is quoted as being 80% efficient.

    So, I would call this more a "graceful shutdown" UPS than a "battery backup".

    It is, of course, a "standby" type - with a stepped approximation to a sine wave when it switches its inverter on (about 6mSec transfer time - non-synchronous).

    Its surge protection is 310 Joules.

    So, it will do no under or over voltage mains conditioning - it will just switch to inverter mode when its limits are exceeded.

    Now this may be suited to your particular needs - especially in the UK where the mains distribution system has been fairly well managed (in the past).

    If you are thinking of linking out to external battery/batteries - forget it, unless you only plan on loading it up to <100W. At 500W, it will be dissipating around 100W internally. With no fans - it's reliant on shutting down (in less than 3 mins) before the internal heatsinks go over-temperature. Stick more batteries on without modification and it will trip out (or burn out) on over- temperature. Even on 100W, it won't run continuously.

    It's a good make - I've got a, oh, must be 30 year old APC that is still going strong. Countless battery changes in that time, of course. It's a 1200VA one. WITH fans and external battery connections. So will deliver 1kW "indefinitely" (say off a boat supply).
    deleted392719's avatar
    Is a lead acid battery typical these days in one of these?
    I'm surprised they're not lithium ion
  2. JohnSmith33's avatar
    I've been watching this one, best price in a while.
    Not as good as 87.99 it was in 2022(?) but still a good discount.
    moshispam's avatar
    Yes it's a nice bit of kit, the Wife's PC has survived a few power cuts with it now :-52797125-p0xOe.jpg (edited)
  3. bil.hussain's avatar
    Notice the battery autonomy is 16 hours for 800W. Does this mean that the connected appliances can run up to 16 hours continuously @ 3.50A? Cheers.
    Grrrrrrrrrrr's avatar
    If you look at my previous comments - one includes a run time graph under different loads (with a brand new fully charged battery under ideal conditions).
  4. energy80s's avatar
    Won't deliver to NI.
    mikerr's avatar
    Need a bigger boat !
  5. TheVoice's avatar
    Amazon tells me I've had this one for exactly a year and a day, I've had no issues with it and it's kept my PC, NAS, router and ONT up and running when I've had a few power cuts or RCD trips. I also used it during the Octopus energy saving events to bring my power usage down further while keeping my internet connection active.

    It comes with a USB data cable that can be connected to a PC for energy monitoring and for triggering a shutdown on the event of a power failure. I have mine connected to my Synology NAS which does the monitoring, and then use an app on my PC called WinNUT Client which pulls the UPS data from the NAS.
  6. Thudspud's avatar
    Seems a good price, I only want to get a tiny one to run my modem and router in the event of power failure and think this would be overkill
    DontGoOverTheMountain's avatar
    You'd be surprised. One of the reviews says they got 70 mins for their networking kit, that's not implausible for a power cut
  7. agent_pires's avatar
    Might be better off with one of those powerstations with ups function? Might cost more though
    mtodak's avatar
    I have one, its not recommended to have it plugged in to the mains and running 24/7.
  9. dr.met.ty's avatar
    Got 650VA version from Amazon Spain. Like it except the plug sockets are close together and not at an angle so some bigger plugs block the socket opposite. Paid €51 plus delivery at the time
  10. rovingman's avatar
    amazon.es/dp/…tem

    £63.56 delivered from Amazon Spain including taxes.

    Edit: Sorry, this one from Amazon Spain is 650va only, so not the same as this one. (edited)
    JoeSpur's avatar
    Still a great deal nonetheless!
  11. Ricky_Spanish's avatar
    How long would this run a hikvision nvr powering 4 ip cameras and a tp link 4g router?
    Grrrrrrrrrrr's avatar
    Ideally, you buy a plug in mains monitoring adapter, either to each in turn or ideally collectively and measure the total power demand in watt hours over a typical period, say one hour. Then go to the graph that I posted earlier - which gives the run time for a complete range of loads from zero to (slight) overload.

    Second best to that is to look up the data sheets for each of them - which should mention the power consumption - add those to get the total power.

    An added complication is that the IP camera load will not be a constant, if it switches in night illumination and increases power demand when it detects a change in the image being processed. The NVR may have a hard drive that is spun down when the NRV doesn't need to access it.

    Otherwise, a guesstimate can be very misleading, as run time does vary so greatly with load.

    If you look at the graph it shows that you will probably get less than an hour runtime. As I wrote previously, this model is more intended as something to shut a system down gracefully in the event of mains problems. It is NOT something to use to run things for hours on battery.

    If all of those devices are powered by wall warts, which may be the case - adding a battery to the dc output side (with dc to dc converters as needed) - keeping that charged is going to be a much better solution than using a battery to produce mains, which is then converted back down to low voltage dc.
  12. daddybr00's avatar
    I have a few APC units but have tried a Cyberpower unit recently that outputs a pure sine wave and the quality and features definitely feel superior, though it has less output sockets it would still be my goto if I needed to replace one of the APCs for whatever reason
  13. deeperthought's avatar
    Word of advice, don’t use these with energy star devices (e.g. iMac), they need a sine wave unit.
  14. zbbzbb's avatar
    I spent some time looking at a UPS for a Dell 5060 running Proxmox. In the end I bought a refurbished HP T750 G2, with new batteries and a 12 month warranty for about £60 delivered. It's very well built (kind of enterprise grade), supported for windows and linux (NUT). It's perhaps a little larger than these but I'm happy with it, cheap, quality, and good for the environment to re-use. YMMV, but a possible alternative.
    The website (not ebay) I bought from specialises in refurbished and warranted UPS, they have a large variety of different ones. I chose the HP one as the site says spares/batteries will be available for a long time, and they had a bulk number of them so were best value.
    (I'm not affiliated )
    energy80s's avatar
    Any chance of actually mentioning which site that was?
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