Why don't people just buy these battery banks and plug it in to their 110v outlet and then plugin all their computer stuff to the battery bank?
>>106736686Too expensive. Realistically you'd need at minimum a 2kWh power station even for a low-end desktop computer with an iGPU and no dGPU like an 8700G APU. That has a PPT of up to 88W, which is what it would need to achieve GTX 1060 gaming performance. Add the power consumption and overhead of everything else and you're closer to 150 watts.>PPT:61-88 Whttps://www.techpowerup.com/cpu-specs/ryzen-7-8700g.c3434So yeah, might as well just get a gaming laptop. When the power goes out, worst thing that will happen is the dGPU will throttle to 50% performance as it switches to exclusively battery power for a few hours (at most).
>>106736932This is complete lunacy, a low-end UPS which would be adequate for a 150W system won't have a capacity anywhere close to 2kWh.>>106736686I never owned one of those. Do they actually perform all the functions an UPS would? Do they connect to a PC in order to notify that the power has turned off and to allow a proper shutdown when the battery gets low? How do their AC power outputs work, are they online double conversion or just line interactive? Especially if it's the former, what kind of power can they handle under continuous load? Are the batteries in them actually replaceable, to account for inevitable wear on them when they're used as a 24/7 connected device and not some occasional power for an outage or camping trip or whatever?
>>106737048I'm yet to meet a UPS where you can't plug a completely arbitrary amount of amp-hours into it. It requires a drill at absolute worst.Literally everything above the sub-$100 line-interactive ghetto has a 12V plug on the back, where you hook up a battery the size of the Moon if you so wish.
>>106737048OP is talking about making a giant laptop and using the power station as a power plant for the PC. It would avoid -/+ voltage problems that usually fry computers when the power suddenly goes out. Unless he wants to replace them every year a 2kWh battery station would have to be the minimum. RTX 5090 + 9800X3D might require like a 10kWh battery station lol.
>>106736686>>106736932you can get 5kWh batteries for about $1k-1.2k. you also need an inverter, though, which adds about $600 to the cost. ideally a pure sine wave one.
>>106737199Yeah now factor in the BMS OP will probably fuck up which will lead to setting his house on fire.
>>106737157The OP literally asks about using one as a PC UPS. Look at the UPS market, no UPS rated for something as low as 150W comes even close to 2kWh capacity. A UPS is mostly intended to tide you over short power outages or to allow for a clean shutdown during an extended outage.>>106737137>I'm yet to meet a UPS where you can't plug a completely arbitrary amount of amp-hours into it.Some of the really cheap ones are not rated for continuous operation at their stated power limit, as in they're designed with the low capacity of the included battery in mind in that the electronics will release the magic smoke if you run them for a long period of time. They're designed to work for the few minutes the included battery can take and no more. This is often the case because they don't have proper cooling, just enough to run for a short while but if you run it on a much larger battery it just overheats and dies.>>106737199You need an inverter and a charger + BMS, then you also need a way to monitor battery charge from the PC (for emergency shutdown) and most critically you need a way to handle on-grid operation. You can find fairly high power inverters without much difficulty, but if you want to build your own UPS out of parts you have to account for on-grid operation and for the switching procedure as well. If you just want to do double conversion then you will need a charger which can match the input power of the inverter and those tend to be much harder to find, because you usually don't charge batteries with that much current.Basically it's not going to be easy to make, you're better off trying to find an actual UPS with an external battery connection.
>>106737236>>106737290I'm talking about battery + BMSs here >>106737199, not self-builds>you also need a way to monitor battery charge from the PCcurrent charger/inverters come with everything included.>you need a way to handle on-grid operationI'm talking about off-grid inverters, though. the one I have (growatt ES series with solar panels) switches to battery and power keeps working without external poweron-grid ones are a completely different matter. AFAIK those disconnect themselves when the external power is down kek. I think you need hybrid ones for that. I've learned this from experience and from watching videos on yt, though. I'm no expert on this shit.
>>106736686because i don't trust some random chinese company. especially with huge batteries and devices i care about.
>>106737157I'm talking about a cable model, wifi router, a laptop or pc, and maybe 1 or 2 security cams. How big of a battery bank would I need for something like this just to buy maybe 1-2 hours of time before everything shuts off? I just need them to stay on long enough to get a text message or email alert.
>>106739283measure the power usage of the devices, do the math, and then buy the right sized UPS.
>>106739283>cable model, wifi router, a laptop or pc, and maybe 1 or 2 security camsthat's like 1kW>maybe 1-2 hours of time before everything shuts off2[h] x 1 [kW] = 2kWh
>>106736686Because I don't want a Lithium ticking time bomb when SLA worked just fine for the past century.
>>106736686Most people don't know about them really.The one issue is the battery packs don't have as quick of a switchover compared to a UPSA UPS will switch from AC to battery in under 10 milliseconds.The lithium battery packs however take 20ms, still quick enough for most things but it's not the standard. Most devices are rated for a 17ms hold up time (the time a PSU can be operated without AC power) with some only being 10ms.This is at full load and most PSUs will have a longer hold up time when at a lower load.
>>106740523You're being paranoid. Millions of people have one in their cars and even park them in their garages every day in extremely hot weather.
Are there any battery banks specifically marketed as UPS backups? I just need something to use my regular home power and switch to the internal battery during an outage.
>>106736686>Why don't people just buy these battery banks and plug it in to their 110v outlet and then plugin all their computer stuff to the battery bank?Show me the existence of an rj45 port and not as a passthrough, but because its a networked device>inb4 it doesnt existokay so at the very, show me a serial port>inb4 it doesnt existAnd now you know why
>>106736686yes but it's a dumbass idea
>>106741520Why does a rj45 need a passthrough? That's what a router is for.
>>106741494Yeshttps://us.ecoflow.com/products/river-3-plus-portable-power-station?variant=41636514136137
>>106736686Some versions of these battery banks have restrictions in certain countries. They have regulations that rightly so prevent retards doing pass through so they don't SHORTY CALL 911 FYA BURNIN ON THE DANCE FLOOR WHOAAA. I would be terrified of having some Lithium battery bank of that size catching fire while I'm asleep or away. Literal Bomb. This is why we have Lead-Acid.
>>106741580Checking these out
>>106736686My Bluetti power station advertises that it is capable of that.
>>106741570Some UPS units have an RJ45 passthough to stabalize current in case its effected by power surge
>>106736686Probably would activate too slowly to be viable. UPS works because they divert power to the battery before your shit goes poof.
>>106736686Most of these battery backups already have UPS capability built into them, the expensive ones
>>106737290Nice strawman. It could have an inverter the size of a grain of rice that combusts if you try to pull more an a milliamp out of it - it doesn't change the fact that you can put an arbitrary amount of amp-hours of batteries behind it and power a 50 microamp load until the sun dies.
>>106736686They never have fast enough switch over time to satisfy ATX 3 requirements and most (all?) don't provide any line-interactive / AVR function.>>106741570I've had lightning kill a cable modem + router + PC Ethernet port in series. That said, UPS Ethernet pass through is usually borderline unusable shit and you need to install standalone units from Ditek or the like if you care about getting >1Gb. Or upgrade to fiber and a whole house surge protector so it's unnecessary.
>>106742938I don't get it. What do you need it for if you have a router plugged in? You lose a couple of packets? Connection stutters for a couple of seconds until the battery kicks in?
>>106746171Router isn't a surge protector. If you have cable or DSL you can catch lightning strikes through the provider's copper line. They don't give a shit about lightning protection on these any more because their 'copper infrastructure' is a 20m cable that goes from their fiber exchange to the modem.
WTF are you all talking about. 99% of you do not need a UPS, you are just dumb pieces of shit.
Jesus, the amount of retardation here is staggering. /g/ used to be at least half knowledgable but now it's summerfags all year round
>>106746771UPS is nice to have if your time has any value. It's amazing how much lower the mortality rate for AC adapters and PSUs is for always on devices.
>>106746748Seems like a pretty rare usecase. How many times does lightning strike a cable line? Seems like money would be better spent on a lightning rod grounder instead.
>>106746771We need a battery back up to let us know our security cams and computer will be down that way we can shut them off remotely before they run out of juice.
>>106747284this
>>106746792What's the issue?
>>106749346Why would you pay money to protect the cable company's equipment? Fuck them.
