Hikvision is known for making security cameras but an unknown brand in the UPS world, having only started making UPSes in 2023.
Datasheet says the waveform is PWM, which I believe means modified sine wave.
There is a USB port on this model but can't confirm the protocol it uses and isn't listed in Synology, QNAP, NUT
It doesn't appear to use KPower which would have suggested it uses USB HID.
Surcharges: 0% bank deposit, 1.2% VISA & MasterCard, 1.7% American Express, 2.2% PayPal, 3.9% Afterpay.
How much did you pay for them?
I am hoping that there will be some cheap business surplus gear hitting the market in july/august.
i got a apc 3000xl for my 3d printers that was $250
also got a cyberpower 1320w for $110 thats for my pc setup. supposedly both had the batterys replaced and the 3000xl came with 1 brand new spare battery.
Datasheet says the waveform is PWM, which I believe means modified sine wave.
PWM would be square wave.
https://www.researchgate.net/publication/351029900/figure/fi…
Which is still typically fine for the 2 or 3 minutes it takes your gear to shutdown; but if you use a PSU with PFC technology, it can cause overheating; but short runs are fine.
For this size, if you need 3000VA, this price is brilliant.
modified sine wave used PWM to generate the output
pure sine wave is the preferred wave form for a UPS
Modified, aka sawtooth, needs further regulators, and\or an advertisement-worthy pwm switching speed in the KHz range.
It's possible they just… didn't mention it…. But square is not uncommon in UPS's that cheap.
Honestly, I'd expect the worst and hope for the best.
I saw this yesterday and wasn't sure oversea means.. anyone know?
maybe a mistranslation meant to mean 'international' and copy and pasted from the Hikvision website
I've already taken the leap of faith.. let's see
no idea about UPS, bought this few months back CyberPower UPS 1000/500 from amazon Amazon apart from the capacity what are the difference?
what did I wrong with the question?
you answered your own question
Capacity: 1000VA vs 3000VA
3 outputs vs 4 outputs
Nothing, mobile users often hit votes when they scroll. Its just noise.
I have the same one you have. The differences will be in the build quality, size of the battery, max power level (the one above can power 3 times as much as our ones.. important if you are powering a bunch of servers, or you are gaming at the time of a blackout) and the purity of the signal.
Ours give a fairly harsh power (I mean I bought it for $75, what can you expect) but given that it all gets filtered by modern power supplies it's not much of an issue to me.
Here are the two datasheets for you.
Just open them side by side.
It'd take far too long for any of us to type them out again, just compare A to B :)
https://assets.hikvision.com/prd/public/all/doc/m000086221/D…
https://www.cyberpower.com/au/en/File/GetFileSampleByType?fi…
I got this from a previous deal from I-tech to replace a CyberPower.
It works well and looks solid
Does anyone have instructions on how to change the internal lead acid batteries when they invariably die in a few years?
I can change the batteries in my CyberPower but there is a warning sticker on the Hikvision saying no user serviceable parts (wtf?)…
I can change the batteries in my CyberPower but there is a warning sticker on the Hikvision saying no user serviceable parts (wtf?)…
That's becaue there's a risk of Death, so they're always careful about what can be done by a user, and what can be done by a technician.
Battery Type 12 V/9 Ah *4 pcs, lead-acid battery
They're in series, from what I can find, so if it was fully charged, 14v x 4 = 56v, easily enough to electrocute through dry human skin.
Anything over 24v has a chance to zap you if your skin is wet.
They're just avoiding people messing with things they don't know, because they see "oh 12v?" and don't understand series vs parallel.
56V is not enough to electrocute through dry skin. With wet skin you may feel it, but it wouldn't kill you. Unless you lick the battery terminals, 56V is a low enough voltage not to be a significant electric shock hazard.
The bigger risk is accidentally short circuiting the battery, which can lead to sparks / fire / explosion. The same risk is present for all UPS batteries.
I think the main reason for there being no user serviceable parts is because the manufacturer wants you to buy a new one when the battery reaches end of life.
Manufacturers nowadays always try to argue "safety" when the true reason is profits. Changing a UPS battery is no more risky than using a kitchen knife.
Someone with naturally moist (not wet, hydrated) skin can have resistance as low as 1000 ohms, 50v is absolutely the tipping point.
It's one of the first things you're taught doing your low voltage certifications.
It's a low risk, but it's almost certainly why a company would put a sticker saying no USER servicable parts, and recommend a technician instead.
@MasterScythe: I'm not sure any of this matters - you aren't going to be grabbing hold of the live terminals during the battery swap unless you're a complete moron 😂
Nothing to do with series vs parallel. The warning is to do with the giant transformer inside inverting the voltage to 240v.
Unscrew and remove the metal chassis cover.
Replace batteries with equivalents.
These instructions basically apply to every UPS.
Would this run a bar fridge for a while (Like a mini bar fridge in a hotel)?
I too stay in hotels and absolutely prioritise cold drinks over heat and light.
Yes, but not well. and could cause damage.
Anything with AC motors has a really hard time with square or stepped waves; really need a sinewave UPS.
transfer time isnt great on these units so probably not the best option for PCs
If the quality is anything like their camera systems then I wouldn't waste my money.
How do we determine what wattage UPS we would require?
It's not based just off the PSU of our PC right?
No, its based off the wattage your PC uses.
Smart meters or Kill-a-Watt syle devices can measure that.
Lots of people will have 1000W PSU's and only use 600W of that.
CyberPower VALUE2200ELCD 2200VA / 1320W $249
Lower capacity/power output but more known brand and better USB compatibility
Potentially Officeworks Price Beat
I have both. Both are pretty good. Cyberpower died after 4-5 years and needed batteries replaced.
damn just picked up some used ones over the weekend should have just bought 2 of these….